JP7425270B2 - Containers for low temperature storage of agricultural and horticultural crops - Google Patents
Containers for low temperature storage of agricultural and horticultural crops Download PDFInfo
- Publication number
- JP7425270B2 JP7425270B2 JP2020068991A JP2020068991A JP7425270B2 JP 7425270 B2 JP7425270 B2 JP 7425270B2 JP 2020068991 A JP2020068991 A JP 2020068991A JP 2020068991 A JP2020068991 A JP 2020068991A JP 7425270 B2 JP7425270 B2 JP 7425270B2
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- JP
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- Prior art keywords
- agricultural
- horticultural crops
- storage
- sustained
- container
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- 238000003860 storage Methods 0.000 title claims description 104
- 230000000844 anti-bacterial effect Effects 0.000 claims description 144
- 239000004480 active ingredient Substances 0.000 claims description 71
- 238000013268 sustained release Methods 0.000 claims description 52
- 239000012730 sustained-release form Substances 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 22
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- NEHNMFOYXAPHSD-UHFFFAOYSA-N citronellal Chemical compound O=CCC(C)CCC=C(C)C NEHNMFOYXAPHSD-UHFFFAOYSA-N 0.000 description 2
- QMVPMAAFGQKVCJ-UHFFFAOYSA-N citronellol Chemical compound OCCC(C)CCC=C(C)C QMVPMAAFGQKVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
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- QMVPMAAFGQKVCJ-SNVBAGLBSA-N (R)-(+)-citronellol Natural products OCC[C@H](C)CCC=C(C)C QMVPMAAFGQKVCJ-SNVBAGLBSA-N 0.000 description 1
- 244000291564 Allium cepa Species 0.000 description 1
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 1
- 240000005528 Arctium lappa Species 0.000 description 1
- 235000003130 Arctium lappa Nutrition 0.000 description 1
- 235000008078 Arctium minus Nutrition 0.000 description 1
- 244000003416 Asparagus officinalis Species 0.000 description 1
- 235000005340 Asparagus officinalis Nutrition 0.000 description 1
- 235000000832 Ayote Nutrition 0.000 description 1
- 240000007124 Brassica oleracea Species 0.000 description 1
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 235000011301 Brassica oleracea var capitata Nutrition 0.000 description 1
- 235000017647 Brassica oleracea var italica Nutrition 0.000 description 1
- 235000001169 Brassica oleracea var oleracea Nutrition 0.000 description 1
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 description 1
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 1
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 description 1
- 235000009604 Chrysanthemum X morifolium Nutrition 0.000 description 1
- 244000189548 Chrysanthemum x morifolium Species 0.000 description 1
- 241000219122 Cucurbita Species 0.000 description 1
- 235000009854 Cucurbita moschata Nutrition 0.000 description 1
- 235000009804 Cucurbita pepo subsp pepo Nutrition 0.000 description 1
- 235000002767 Daucus carota Nutrition 0.000 description 1
- 244000000626 Daucus carota Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- GLZPCOQZEFWAFX-YFHOEESVSA-N Geraniol Natural products CC(C)=CCC\C(C)=C/CO GLZPCOQZEFWAFX-YFHOEESVSA-N 0.000 description 1
- 239000005792 Geraniol Substances 0.000 description 1
- 240000001080 Grifola frondosa Species 0.000 description 1
- 235000007710 Grifola frondosa Nutrition 0.000 description 1
- 240000008415 Lactuca sativa Species 0.000 description 1
- 235000003228 Lactuca sativa Nutrition 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 244000070406 Malus silvestris Species 0.000 description 1
- GLZPCOQZEFWAFX-JXMROGBWSA-N Nerol Natural products CC(C)=CCC\C(C)=C\CO GLZPCOQZEFWAFX-JXMROGBWSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
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- 239000004962 Polyamide-imide Substances 0.000 description 1
- 241000220324 Pyrus Species 0.000 description 1
- 244000088415 Raphanus sativus Species 0.000 description 1
- 235000006140 Raphanus sativus var sativus Nutrition 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 235000002597 Solanum melongena Nutrition 0.000 description 1
- 244000061458 Solanum melongena Species 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 235000009337 Spinacia oleracea Nutrition 0.000 description 1
- 244000300264 Spinacia oleracea Species 0.000 description 1
- 241000121220 Tricholoma matsutake Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
- 235000003095 Vaccinium corymbosum Nutrition 0.000 description 1
- 240000000851 Vaccinium corymbosum Species 0.000 description 1
- 235000017537 Vaccinium myrtillus Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 235000021016 apples Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- JGQFVRIQXUFPAH-UHFFFAOYSA-N beta-citronellol Natural products OCCC(C)CCCC(C)=C JGQFVRIQXUFPAH-UHFFFAOYSA-N 0.000 description 1
- 235000021014 blueberries Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229930003633 citronellal Natural products 0.000 description 1
- 235000000983 citronellal Nutrition 0.000 description 1
- 235000000484 citronellol Nutrition 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 229940113087 geraniol Drugs 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000021017 pears Nutrition 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000343 polyazomethine Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
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- 235000012015 potatoes Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000015136 pumpkin Nutrition 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- MBDOYVRWFFCFHM-UHFFFAOYSA-N trans-2-hexenal Natural products CCCC=CC=O MBDOYVRWFFCFHM-UHFFFAOYSA-N 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/18—Vapour or smoke emitting compositions with delayed or sustained release
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/08—Oxygen or sulfur directly attached to an aromatic ring system
- A01N31/16—Oxygen or sulfur directly attached to an aromatic ring system with two or more oxygen or sulfur atoms directly attached to the same aromatic ring system
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P3/00—Fungicides
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/28—Applications of food preservatives, fungicides, pesticides or animal repellants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/50—Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Zoology (AREA)
- Pest Control & Pesticides (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Environmental Sciences (AREA)
- Plant Pathology (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Polymers & Plastics (AREA)
- Agronomy & Crop Science (AREA)
- General Chemical & Material Sciences (AREA)
- Dentistry (AREA)
- Microbiology (AREA)
- Evolutionary Biology (AREA)
- Marine Sciences & Fisheries (AREA)
- Mycology (AREA)
- Nutrition Science (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Packages (AREA)
- Storage Of Fruits Or Vegetables (AREA)
- Laminated Bodies (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Description
本発明は、徐放性抗菌フィルムを備える農園芸作物低温保存用容器、農園芸作物入り包装体および、農園芸作物の低温保存方法に関する。 The present invention relates to a container for low-temperature preservation of agricultural and horticultural crops, a package containing agricultural and horticultural crops, and a method for low-temperature preservation of agricultural and horticultural crops, including a sustained-release antibacterial film.
従来、収穫された普通作物、野菜類、果物類、花卉類、菌茸等といった農園芸作物の長期保存方法として、脱酸素剤の同封などにより農園芸作物の呼吸を適度に抑制する方法や、０℃以下の氷温で保存する方法などが知られている（例えば、特許文献１等）が、これらの方法では、カビの発生を抑制することができないという問題があった。国内では、農園芸作物の流通時に殺菌剤等の農薬の使用は認められておらず、欧州などの海外でもその使用には大きな制限がある。そのため、農園芸作物の防カビ方法として、収穫された農園芸作物を予め次亜塩素酸系の消毒剤で殺菌処理する手法が知られているが、次亜塩素酸系の消毒剤は取扱に高度な注意が必要であり、長期間の効果が得られないなどの問題があった。 Conventionally, as a long-term preservation method for harvested agricultural and horticultural crops such as ordinary crops, vegetables, fruits, flowers, mushrooms, etc., there have been methods to moderately suppress the respiration of agricultural and horticultural crops by enclosing oxygen absorbers, etc. Methods such as storing at an ice temperature of 0° C. or lower are known (for example, Patent Document 1, etc.), but these methods have the problem of not being able to suppress the growth of mold. In Japan, the use of pesticides such as fungicides is not permitted during the distribution of agricultural and horticultural crops, and there are significant restrictions on their use overseas, such as in Europe. Therefore, as a method of preventing mold on agricultural and horticultural crops, a method is known in which the harvested agricultural and horticultural crops are sterilized in advance with a hypochlorous acid-based disinfectant, but hypochlorous acid-based disinfectants cannot be handled. There were problems such as the need for a high degree of caution and the inability to obtain long-term effects.
一方、農園芸作物の包装に使用する樹脂製フィルム等に、抗菌性能を付与するための方法として、当該フィルム表面に気化性抗菌剤を被覆する方法（例えば、特許文献２等）や、樹脂に無機系抗菌剤や有機系抗菌剤を練り込む方法（例えば、特許文献３、４等）が知られている。前者の被覆する方法は、抗菌フィルムから気化する抗菌剤の量をコントロールすることが難しく、抗菌剤の気化濃度が高くなると、包装された農園芸作物への匂い移りのほか、変色などの品質劣化を招く恐れがある。また、後者の練り込む方法は、抗菌フィルムの表面に露出した抗菌剤と接触した部分に限り抗菌活性が生じるため、包装された農園芸作物全体への抗菌活性の発現が難しいことや、樹脂内部に存在する抗菌剤は抗菌活性を発揮し得ず、所望の抗菌活性を得るためには、多量の抗菌剤が必要になるという問題があった。 On the other hand, as a method for imparting antibacterial properties to resin films used for packaging agricultural and horticultural crops, there is a method of coating the surface of the film with a volatile antibacterial agent (for example, Patent Document 2, etc.), and a method of coating resin films with antibacterial properties. A method of incorporating an inorganic antibacterial agent or an organic antibacterial agent (for example, Patent Documents 3 and 4) is known. With the former coating method, it is difficult to control the amount of antibacterial agent that vaporizes from the antibacterial film, and if the vaporized concentration of antibacterial agent becomes high, odor may be transferred to the packaged agricultural and horticultural crops, and quality deterioration such as discoloration may occur. may lead to In addition, with the latter method of kneading, antibacterial activity occurs only in the areas that come into contact with the antibacterial agent exposed on the surface of the antibacterial film, so it is difficult to express antibacterial activity in the entire packaged agricultural and horticultural crops, and it is difficult to express antibacterial activity inside the resin. There was a problem in that the antibacterial agents present in these materials could not exhibit antibacterial activity, and in order to obtain the desired antibacterial activity, a large amount of antibacterial agents were required.
本発明は、カビによる農園芸作物の商品価値の著しい低下を確実に抑制し、かつ、抗菌活性成分による匂い移りのほか、変色などの品質劣化をさせることのない、流通や保存に適した新たな容器、新たな包装体さらには、新たな保存方法を提供することを課題としている。 The present invention is a new product suitable for distribution and storage that reliably suppresses the significant decline in the commercial value of agricultural and horticultural crops due to mold, and that does not cause odor transfer due to antibacterial active ingredients or quality deterioration such as discoloration. Our goal is to provide new containers, new packaging, and new storage methods.
本発明者は上記課題を解決するために鋭意研究を重ねた結果、保存用容器の容積と徐放性抗菌フィルムの面積および、両者の比を特定の範囲とすることにより、農園芸作物の品質を低下させることなく、カビによる農園芸作物の商品価値の著しい低下を確実に抑制できることを見出し、上記課題を解決するに至ったものである。 As a result of extensive research in order to solve the above problems, the present inventor has determined that the quality of agricultural and horticultural crops can be improved by setting the volume of the storage container, the area of the sustained-release antibacterial film, and the ratio of the two within specific ranges. The inventors have discovered that it is possible to reliably suppress a significant decrease in the commercial value of agricultural and horticultural crops due to mold without reducing the product value, and the above problem has been solved.
本発明は、具体的には次の事項を要旨とする。
１．基材フィルム層と、沸点が１００～２４０℃の範囲にある揮散性抗菌活性化合物群から選択される１種以上を含有する揮散性抗菌活性成分層と、蒸着重合膜からなる揮散性抗菌活性成分透過層を、この順で積層してなる徐放性抗菌フィルムを備え、かつ、下記要件１～３を満たす農園芸作物低温保存用容器。
［要件１］；保存用容器の容積が２５ｃｍ３以上２５０，０００ｃｍ３以下である。
［要件２］；徐放性抗菌フィルムの面積が１ｃｍ２以上５，０００ｃｍ２以下である。
［要件３］；保存用容器の容積（ｃｍ３）に対する、徐放性抗菌フィルムの面積（ｃｍ２）の比が、０．０２以上である。
２．１．に記載の低温保存用容器に農園芸作物を収容してなる、農園芸作物収容包装体。
３．１．に記載の保存用容器を用いて農園芸作物を収容して、－３℃以上１５℃以下で保存する、農園芸作物の保存方法。
Specifically, the gist of the present invention is as follows.
1. A volatile antibacterial active ingredient consisting of a base film layer, a volatile antibacterial active ingredient layer containing one or more types selected from the group of volatile antibacterial active compounds having a boiling point in the range of 100 to 240°C, and a vapor-deposited polymer film. A container for low-temperature storage of agricultural and horticultural crops, which is equipped with a sustained-release antibacterial film formed by laminating permeable layers in this order, and which satisfies requirements 1 to 3 below.
[Requirement 1]; The volume of the storage container is 25 cm 3 or more and 250,000 cm 3 or less.
[Requirement 2]; The area of the sustained-release antibacterial film is 1 cm 2 or more and 5,000 cm 2 or less.
[Requirement 3]; The ratio of the area (cm 2 ) of the sustained-release antibacterial film to the volume (cm 3 ) of the storage container is 0.02 or more.
2.1. A packaging body for storing agricultural and horticultural crops, which is obtained by accommodating agricultural and horticultural crops in the low-temperature storage container described in .
3.1. A method for preserving agricultural and horticultural crops, the method comprising storing the agricultural and horticultural crops in the storage container described in 1.
本発明の容器に備えられている徐放性抗菌フィルムは、揮散性抗菌活性成分透過層が蒸着重合膜により構成されていることから、揮散性抗菌活性成分層に含有される特定の揮散性抗菌活性化合物を安定的に放出させることが可能であり、保存用容器の容積（要件１）と当該徐放性抗菌フィルムの面積（要件２）とを特定の範囲のものとし、さらに当該容積に対する当該面積の比を特定の数値以上（要件３）とすることにより、保存用容器内の揮散した抗菌活性成分量を適正なものとすることができる。本発明は、これらの相乗効果により、農園芸作物の品質を低下させることなく、カビによる農園芸作物の商品価値の著しい低下を確実に抑制することができる。
本発明において使用する、特定の沸点範囲を有する揮散性抗菌活性化合物は、食品添加物として使用される植物香気成分でもあるため、農園芸作物を安全に保存できる点において、本発明は有用である。
Since the sustained-release antibacterial film provided in the container of the present invention has a volatile antibacterial active ingredient permeable layer composed of a vapor-deposited polymer film, the sustained release antibacterial film contained in the volatile antibacterial active ingredient layer can It is possible to stably release the active compound, and the volume of the storage container (requirement 1) and the area of the sustained-release antibacterial film (requirement 2) are within a specific range, and the By setting the area ratio to a specific value or more (requirement 3), the amount of volatilized antibacterial active ingredient in the storage container can be made appropriate. Due to these synergistic effects, the present invention can reliably suppress a significant decrease in the commercial value of agricultural and horticultural crops due to mold without degrading the quality of the agricultural and horticultural crops.
Since the volatile antibacterial active compound having a specific boiling point range used in the present invention is also a plant aroma component used as a food additive, the present invention is useful in that agricultural and horticultural crops can be safely preserved. .
以下、本発明における農園芸作物低温保存用容器や、当該容器を用いた農園芸作物の保存方法について詳細に説明する。なお、本発明における「低温」は、－３℃以上１５℃以下の温度範囲を意味する。
＜農園芸作物について＞
本発明における農園芸作物低温保存用容器は、農園芸作物を保存するための容器である。ここで、本発明における農園芸作物とは、普通作物、野菜類、果物類、花卉類、菌茸類等の栽培作物全般を意味する。農園芸作物としては、特に限定されないが、例えば、水稲、麦類、トウモロコシ、イモ類、マメ類などの普通作物、ダイコン、ニンジン、ゴボウ等の根菜類、タマネギ、アスパラガス、ウド等の茎菜類、キャベツ、レタス、ホウレンソウ、ハクサイ等の葉菜類、トマト、ナス、カボチャ等の果菜類、カリフラワー、ブロッコリー、食用菊等の花菜類などの野菜類、柑橘、リンゴ、ナシ、ブドウ、ブルーベリー、イチゴ、桜桃、桃等の果物類、切り花などの花卉類、シメジ、マツタケ、マイタケ等の菌茸類が挙げられる。
中でも、冷温保存に適し、効果的にカビ発生抑制効果を得る観点から、本発明における農園芸作物としては、果物類において好適であり、中でも、ブドウ、桜桃、桃、イチゴにおいてより好適である。ブドウ、桜桃、桃、イチゴについては、０℃以上５℃以下の温度範囲がより好適な保存温度である。
Hereinafter, the container for low-temperature preservation of agricultural and horticultural crops of the present invention and the method of preserving agricultural and horticultural crops using the container will be described in detail. Note that "low temperature" in the present invention means a temperature range of -3°C or higher and 15°C or lower.
<About agricultural and horticultural crops>
The container for low-temperature storage of agricultural and horticultural crops in the present invention is a container for preserving agricultural and horticultural crops. Here, the agricultural and horticultural crops in the present invention refer to all cultivated crops such as common crops, vegetables, fruits, flowers, fungi, and mushrooms. Examples of agricultural and horticultural crops include, but are not limited to, common crops such as paddy rice, wheat, corn, potatoes, and beans, root vegetables such as radish, carrots, and burdock, and stem vegetables such as onions, asparagus, and udon. leafy vegetables such as cabbage, lettuce, spinach, Chinese cabbage, fruit vegetables such as tomatoes, eggplants, pumpkins, vegetables such as flower vegetables such as cauliflower, broccoli, edible chrysanthemums, citrus fruits, apples, pears, grapes, blueberries, strawberries, Examples include fruits such as cherry blossoms and peaches, flowers such as cut flowers, and mushrooms such as shimeji mushrooms, matsutake mushrooms, and maitake mushrooms.
Among them, fruits are suitable as agricultural and horticultural crops in the present invention from the viewpoint of being suitable for cold storage and effectively obtaining a mold generation inhibiting effect, and among them, grapes, cherry peaches, peaches, and strawberries are more suitable. For grapes, cherries, peaches, and strawberries, a temperature range of 0°C or higher and 5°C or lower is a more suitable storage temperature.
＜揮散性抗菌活性成分について＞
本発明は、沸点が１００～２４０℃の範囲にある揮散性抗菌活性化合物群から選択される１種以上を、揮散性抗菌活性成分とするものである。
本発明の揮散性抗菌活性化合物群に含まれる化合物としては、構成する炭素原子数は５個以上１０個以下の範囲のものが好ましく、好適な化合物の具体例としては、例えば、ヒノキチオール（沸点：１４０℃）、シトロネラール（沸点：２０４～２０６℃）、青葉アルデヒド（トランス－２－ヘキセナール、沸点：１４６℃）、シトロネロール（沸点：２２５℃）、ゲラニオール（沸点：２２９℃）、ネロール（沸点：２２４～２２５℃／７４５ｍｍＨｇ）等が挙げられる。中でも、沸点が１００～２００℃の範囲にある揮散性抗菌活性化合物が好ましく、特に、ヒノキチオール、青葉アルデヒドが好ましい。
<About volatile antibacterial active ingredients>
In the present invention, the volatile antibacterial active ingredient is one or more selected from the group of volatile antibacterial active compounds having a boiling point in the range of 100 to 240°C.
The compounds included in the group of volatile antibacterial active compounds of the present invention preferably have a carbon atom number ranging from 5 to 10. Specific examples of suitable compounds include hinokitiol (boiling point: 140°C), citronellal (boiling point: 204-206°C), green leaf aldehyde (trans-2-hexenal, boiling point: 146°C), citronellol (boiling point: 225°C), geraniol (boiling point: 229°C), nerol (boiling point: 224°C) ~225°C/745mmHg). Among these, volatile antibacterial active compounds having a boiling point in the range of 100 to 200°C are preferred, with hinokitiol and aoba aldehyde being particularly preferred.
本発明の揮散性抗菌活性成分層の形成については、使用する揮散性抗菌活性成分の形態や性質等に応じた手法を適宜選択することができる。例えば、室温で液体の揮散性抗菌活性成分であれば、希釈せずそのまま、基材フィルム層の一方の面上に塗布して揮散性抗菌活性成分層を形成することができる。室温で固体の揮散性抗菌活性成分や室温で液体の揮散性抗菌活性成分であっても、所定の溶媒、例えば、エタノール等により溶液を調製し、それを基材フィルム層の一方の面上に塗工し、溶媒を蒸散させることにより、実質的に揮散性抗菌活性成分のみからなる揮散性抗菌活性成分層を形成することもできる。また、揮散性抗菌活性成分を加熱して気化もしくは昇華して、基材フィルム層の一方の面上に付着させることにより、揮散性抗菌活性成分のみからなる揮散性抗菌活性成分層を形成する、蒸着処理方法を選択することもできる。
本発明における揮散性抗菌活性成分層の厚さは、選択する揮散性抗菌活性成分の種類や、所望の抗菌活性維持期間により適宜決定すればよいが、通常、１μｍ以上５ｍｍ以下の範囲である。
Regarding the formation of the volatile antibacterial active ingredient layer of the present invention, a method can be appropriately selected depending on the form, properties, etc. of the volatile antibacterial active ingredient used. For example, if it is a volatile antibacterial active ingredient that is liquid at room temperature, it can be applied directly onto one surface of the base film layer without being diluted to form a volatile antibacterial active ingredient layer. Even if it is a volatile antibacterial active ingredient that is solid at room temperature or a volatile antibacterial active ingredient that is liquid at room temperature, a solution is prepared using a predetermined solvent such as ethanol, and the solution is applied onto one side of the base film layer. By coating and evaporating the solvent, it is also possible to form a volatile antibacterial active ingredient layer consisting essentially only of the volatile antibacterial active ingredient. In addition, a volatile antibacterial active ingredient layer consisting only of volatile antibacterial active ingredients is formed by heating and vaporizing or sublimating the volatile antibacterial active ingredient and depositing it on one surface of the base film layer. The vapor deposition method can also be selected.
The thickness of the volatile antibacterial active ingredient layer in the present invention may be appropriately determined depending on the type of volatile antibacterial active ingredient selected and the desired antibacterial activity maintenance period, but is usually in the range of 1 μm or more and 5 mm or less.
＜揮散性抗菌活性成分透過層について＞
本発明における揮散性抗菌活性成分透過層は、蒸着重合膜からなるものである。ここで蒸着重合膜とは、蒸着重合法に従って得られる薄膜を意味する。
蒸着重合膜は、一般的に、加熱により蒸気化された二種以上の原料モノマーを、真空状態の成膜室内に導入し、成膜室内に配置された成膜対象物の表面に付着させ、かかる表面にて原料モノマー間の重合を進行させることによって、形成されるものである。すなわち、膜の形成が、本発明における揮散性抗菌活性成分層の表面に存在する、微細な凹凸に追従しながら進行することにより、揮散性抗菌活性成分透過層が形成されるため、揮散性抗菌活性成分層と揮散性抗菌活性成分透過層との間において優れた密着性を発揮する。また、蒸着重合膜は、極めて薄い膜厚においても作製することが可能であり、得られる蒸着重合膜は、不純物の含有が非常に少ないという利点をも有する。従って、本発明における徐放性抗菌フィルムは、揮散性抗菌活性成分層と揮散性抗菌活性成分透過層との間において、加水分解やヒートショック等に起因する層間剥離の発生が有利に抑制されるため、目的に応じた揮散性抗菌活性成分量を安定的に、放出し揮散させることが可能となる。
<About the volatile antibacterial active ingredient permeable layer>
The volatile antibacterial active ingredient permeable layer in the present invention is composed of a vapor-deposited polymer film. Here, the vapor-deposited polymer film means a thin film obtained according to the vapor-deposition polymerization method.
Generally, vapor-deposited polymeric films are produced by introducing two or more raw material monomers that have been vaporized by heating into a film-forming chamber in a vacuum state, and making them adhere to the surface of a film-forming object placed in the film-forming chamber. It is formed by proceeding polymerization between raw material monomers on such a surface. In other words, the formation of a film progresses while following the minute irregularities present on the surface of the volatile antibacterial active ingredient layer in the present invention, and a volatile antibacterial active ingredient permeable layer is formed. Exhibits excellent adhesion between the active ingredient layer and the volatile antibacterial active ingredient permeable layer. Further, the vapor-deposited polymer film can be produced even in an extremely thin film thickness, and the obtained vapor-deposited polymer film has the advantage that it contains very few impurities. Therefore, the sustained-release antibacterial film of the present invention advantageously suppresses the occurrence of delamination caused by hydrolysis, heat shock, etc. between the volatile antibacterial active ingredient layer and the volatile antibacterial active ingredient permeable layer. Therefore, it becomes possible to stably release and volatilize the amount of volatile antibacterial active ingredient according to the purpose.
本発明における揮散性抗菌活性成分透過層を構成する合成樹脂としては、従来から知られている蒸着重合法に従って膜形成が可能な合成樹脂の中から、揮散性抗菌活性成分に応じたものが適宜選択することができる。具体的には、揮散性抗菌活性成分透過層を構成する合成樹脂膜としては、ポリユリア樹脂膜、ポリアミド樹脂膜、ポリイミド樹脂膜、ポリアミドイミド樹脂膜、ポリエステル樹脂膜、ポリアゾメチン樹脂膜やポリウレタン樹脂膜等の、公知の蒸着重合法に従って作製可能な各種の合成樹脂膜を例示することができる。中でも、特に、ポリユリア樹脂膜は、揮散性抗菌活性成分が効果的に透過可能な架橋構造を有するため、有利に採用することができる。
また、揮散性抗菌活性成分透過層の厚さは、揮散性抗菌活性成分のフィルム外部への単位時間当たりの放出量や、揮散性抗菌活性成分層に含まれる揮散性抗菌活性成分の種類や量等を総合的に考慮し、適宜に決定することができる。具体的には、揮散性抗菌活性成分透過層の厚さは、０．０１μｍ以上５０μｍ以下の範囲が好ましく、０．１μｍ以上１０μｍ以下の範囲がより好ましい。
As the synthetic resin constituting the volatile antibacterial active ingredient permeable layer in the present invention, one suitable for the volatile antibacterial active ingredient can be selected from synthetic resins that can be formed into a film according to the conventionally known vapor deposition polymerization method. You can choose. Specifically, the synthetic resin films constituting the volatile antibacterial active ingredient permeable layer include polyurea resin films, polyamide resin films, polyimide resin films, polyamide-imide resin films, polyester resin films, polyazomethine resin films, and polyurethane resin films. Examples include various synthetic resin films that can be produced according to known vapor deposition polymerization methods. Among these, polyurea resin membranes can be particularly advantageously employed because they have a crosslinked structure through which volatile antibacterial active ingredients can effectively permeate.
In addition, the thickness of the volatile antibacterial active ingredient permeable layer is determined by the amount of volatile antibacterial active ingredient released per unit time to the outside of the film, and the type and amount of volatile antibacterial active ingredient contained in the volatile antibacterial active ingredient layer. etc., and can be determined as appropriate. Specifically, the thickness of the volatile antibacterial active ingredient permeable layer is preferably in the range of 0.01 μm or more and 50 μm or less, and more preferably in the range of 0.1 μm or more and 10 μm or less.
＜徐放性抗菌フィルムについて＞
本発明における徐放性抗菌フィルムは、基材フィルム層の一方の面上に揮散性抗菌活性成分層が形成されており、さらに該揮散性抗菌活性成分層の面上に、蒸着重合膜からなる揮散性抗菌活性成分透過層が形成されている態様が好ましく、基材フィルム層、揮散性抗菌活性成分層および揮散性抗菌活性成分透過層の大きさが、概略同等であることが好ましい。
本発明における徐放性抗菌フィルムは、農園芸作物低温保存用容器の上部に配されることが好ましく、当該容器内部の農園芸作物表面を覆う、または、当該容器天面部に貼付等により配されることがより好ましい。この場合、徐放性抗菌フィルムにおける揮散性抗菌活性成分透過層が、当該容器内部の農園芸作物に対向するように配することが好ましい。
本発明の農園芸作物低温保存用容器は、「要件２」として、１ｃｍ２以上５，０００ｃｍ２以下の徐放性抗菌フィルムを備えることを特徴とするものである。徐放性抗菌フィルムの面積は、５ｃｍ２以上１，０００ｃｍ２以下のものが好ましく、１０ｃｍ２以上５００ｃｍ２以下のものがより好ましい。
本発明の農園芸作物低温保存用容器に備える徐放性抗菌フィルムは、１枚でも良いし、２枚以上複数枚使用しても良い。複数枚使用する場合、本発明における徐放性抗菌フィルムの面積は、使用する全ての徐放性抗菌フィルムの面積の総和を意味する。
<About sustained release antibacterial film>
The sustained-release antibacterial film of the present invention has a volatile antibacterial active ingredient layer formed on one surface of a base film layer, and further comprises a vapor-deposited polymer film on the surface of the volatile antibacterial active ingredient layer. It is preferable that a volatile antibacterial active ingredient permeable layer is formed, and it is preferable that the base film layer, the volatile antibacterial active ingredient layer, and the volatile antibacterial active ingredient permeable layer have approximately the same size.
The sustained-release antibacterial film of the present invention is preferably disposed on the top of a container for low-temperature preservation of agricultural and horticultural crops, and is arranged by covering the surface of the agricultural and horticultural crops inside the container, or by being attached to the top surface of the container. It is more preferable that In this case, it is preferable that the volatile antibacterial active ingredient permeable layer of the sustained-release antibacterial film is arranged so as to face the agricultural and horticultural crops inside the container.
The container for low-temperature preservation of agricultural and horticultural crops of the present invention is characterized by having a sustained-release antibacterial film of 1 cm 2 or more and 5,000 cm 2 or less, as “requirement 2”. The area of the sustained release antibacterial film is preferably 5 cm 2 or more and 1,000 cm 2 or less, more preferably 10 cm 2 or more and 500 cm 2 or less.
The number of sustained-release antibacterial films included in the container for low-temperature preservation of agricultural and horticultural crops of the present invention may be one, or two or more. When a plurality of sustained-release antibacterial films are used, the area of the sustained-release antibacterial film in the present invention means the total area of all the sustained-release antibacterial films used.
＜農園芸作物低温保存用容器について＞
本発明の農園芸作物低温保存用容器は、樹脂製や紙製など素材や、袋形状、箱形状など形態は、特に限定するものではないが、中でも、箱形状のものが好適である。ただし、本発明における徐放性抗菌フィルムから揮散される揮散性抗菌活性成分量を維持できるように、ある程度密封可能な容器であることが好ましい。
本発明の農園芸作物低温保存用容器は、本発明における徐放性抗菌フィルムから構成される容器であってもよいが、本発明における徐放性抗菌フィルムとは別の素材により構成される袋状のものも含む保存用容器に、農園芸作物を収容して、収容された農園芸作物の上部に本発明における徐放性抗菌フィルムを配置する方が簡便であり、コストの面からも有利である。
本発明の農園芸作物低温保存用容器は、「要件１」として、その容積が２５ｃｍ３以上２５０，０００ｃｍ３以下であることを特徴とするものである。保存用容器の容積は、５００ｃｍ３以上１００，０００ｃｍ３以下のものが好ましく、１０００ｃｍ３以上５０，０００ｃｍ３以下のものがより好ましい。
<About containers for low-temperature storage of agricultural and horticultural crops>
The container for low-temperature storage of agricultural and horticultural crops of the present invention is not particularly limited in its material, such as resin or paper, or in its form, such as bag shape or box shape, but box-shaped containers are particularly preferred. However, in order to maintain the amount of volatile antibacterial active ingredient volatilized from the sustained-release antibacterial film in the present invention, it is preferable that the container be airtight to some extent.
The container for low-temperature preservation of agricultural and horticultural crops of the present invention may be a container made of the sustained-release antibacterial film of the present invention, but may be a bag made of a material different from the sustained-release antibacterial film of the present invention. It is easier and more cost-effective to store agricultural and horticultural crops in a storage container, including a storage container, and to place the sustained-release antibacterial film of the present invention on top of the stored agricultural and horticultural crops. It is.
The container for low-temperature storage of agricultural and horticultural crops of the present invention is characterized in that the volume thereof is 25 cm 3 or more and 250,000 cm 3 or less, as “Requirement 1”. The volume of the storage container is preferably 500 cm 3 or more and 100,000 cm 3 or less, more preferably 1000 cm 3 or more and 50,000 cm 3 or less.
＜揮散性抗菌活性成分量について＞
本発明の農園芸作物低温保存用容器は、保存用容器内の揮散性抗菌活性成分量を適正なものとすることができるため、揮散性抗菌活性成分による匂い移りや変色などで農園芸作物の品質が低下することなく、カビによる農園芸作物の商品価値の著しい低下を確実に抑制することができる。
一般的に、密閉容器に徐放性抗菌フィルムを入れると、時間経過とともに、容器内の抗菌成分量は上昇する。容器内の抗菌成分量が少ないと十分な抗菌活性が得られず、農園芸作物が腐敗してしまう一方、容器内の抗菌成分量が多くなり過ぎると、揮散性抗菌活性成分の匂い移りや変色など農園芸作物の商品価値が低下してしまう。すなわち、カビによる農園芸作物の商品価値の著しい低下を確実に抑制し、かつ、揮散性抗菌活性成分による匂い移りのほか、変色などの品質劣化も抑制するためには、保存用容器内の抗菌成分量を適正な範囲にコントロールする必要がある。
本発明は、保存用容器内の抗菌成分量を適正な範囲にコントロールできるものであり、そのために必要な徐放性抗菌フィルムの面積と保存用容器の容積の範囲および、徐放性抗菌フィルムと保存用容器との関係性を初めて特定したものである。
<About the amount of volatile antibacterial active ingredient>
The container for low-temperature storage of agricultural and horticultural crops of the present invention allows the amount of volatile antibacterial active ingredients in the storage container to be appropriate, so that the agricultural and horticultural crops can be protected against odor transfer and discoloration due to the volatile antibacterial active ingredients. It is possible to reliably suppress a significant decrease in the commercial value of agricultural and horticultural crops due to mold without deteriorating quality.
Generally, when a sustained-release antibacterial film is placed in a closed container, the amount of antibacterial components in the container increases over time. If the amount of antibacterial ingredients in the container is too low, sufficient antibacterial activity will not be obtained, and agricultural and horticultural crops will rot. On the other hand, if the amount of antibacterial ingredients in the container is too large, the volatile antibacterial active ingredients may transfer odors and discolor. The commercial value of agricultural and horticultural crops such as these will decline. In other words, in order to reliably suppress the significant decline in the commercial value of agricultural and horticultural crops due to mold, and to suppress the transfer of odors due to volatile antibacterial active ingredients as well as quality deterioration such as discoloration, it is necessary to It is necessary to control the amount of ingredients within an appropriate range.
The present invention enables the amount of antibacterial components in the storage container to be controlled within an appropriate range, and for this purpose, the area of the sustained-release antibacterial film and the volume range of the storage container, and the amount of the sustained-release antibacterial film and the amount of the sustained-release antibacterial film are controlled. This is the first time that the relationship with storage containers has been identified.
本発明における揮散性抗菌活性成分は、沸点が１００～２４０℃の範囲にある揮散性抗菌活性化合物群から選択される１種以上のものであることも、上記保存用容器内の抗菌成分量を適正なものとすることを可能とする要件の１つである。
以上のとおり、本発明の農園芸作物低温保存用容器内の揮散性抗菌活性成分量を適正なものとすることにより、カビによる農園芸作物の商品価値の著しい低下を確実に抑制し、かつ、抗菌活性成分による匂い移りのほか、変色などの品質劣化をさせることのない、流通や保存に適した農園芸作物低温保存用容器とすることができるものである。
The volatile antibacterial active ingredient in the present invention is one or more selected from the group of volatile antibacterial active compounds having a boiling point in the range of 100 to 240°C. This is one of the requirements that makes it possible to make it appropriate.
As described above, by optimizing the amount of volatile antibacterial active ingredients in the container for low-temperature storage of agricultural and horticultural crops of the present invention, a significant decrease in the commercial value of agricultural and horticultural crops due to mold can be reliably suppressed, and The present invention can be used as a low-temperature storage container for agricultural and horticultural crops, which is suitable for distribution and storage and does not cause odor transfer due to antibacterial active ingredients or quality deterioration such as discoloration.
本発明の農園芸作物低温保存用容器内の揮散性抗菌活性成分量を、適正なものとするためには、下記要件１～３を満たすことが必要である。
［要件１］；保存用容器の容積が２５ｃｍ３以上２５０，０００ｃｍ３以下である。
［要件２］；徐放性抗菌フィルムの面積が１ｃｍ２以上５，０００ｃｍ２以下である。
［要件３］；保存用容器の容積（ｃｍ３）に対する、徐放性抗菌フィルムの面積（ｃｍ２）の比が、０．０２以上である。
上記「要件３」について説明する。
「要件３」は、保存用容器の容積（ｃｍ３）に対する、徐放性抗菌フィルムの面積（ｃｍ２）の比が、すなわち、徐放性抗菌フィルムの面積（ｃｍ２）を、保存用容器の容積（ｃｍ３）で除した値が、０．０２以上とするものである。
本発明の農園芸作物低温保存用容器内の揮散性抗菌活性成分量を、適正なものとするためには、特に、この「要件３」を満たすことが重要である。この「要件３」の比が０．０２より小さい場合には、農園芸作物低温保存用容器内の揮散性抗菌活性成分量が不足し、保存用容器内の農園芸作物に対する防カビ効果を得ることができない。「要件３」の比を０．０２以上とすることにより、カビによる農園芸作物の商品価値の著しい低下を確実に抑制し、かつ、抗菌活性成分による匂い移りのほか、変色などの品質劣化をさせることのない、流通や保存に適した農園芸作物低温保存用容器とすることが可能となる。
In order to make the amount of volatile antibacterial active ingredient in the container for low-temperature storage of agricultural and horticultural crops of the present invention appropriate, it is necessary to satisfy the following requirements 1 to 3.
[Requirement 1]; The volume of the storage container is 25 cm 3 or more and 250,000 cm 3 or less.
[Requirement 2]; The area of the sustained-release antibacterial film is 1 cm 2 or more and 5,000 cm 2 or less.
[Requirement 3]; The ratio of the area (cm 2 ) of the sustained-release antibacterial film to the volume (cm 3 ) of the storage container is 0.02 or more.
The above "requirement 3" will be explained.
"Requirement 3" is that the ratio of the area (cm 2 ) of the sustained-release antibacterial film to the volume (cm 3 ) of the storage container, that is, the area (cm 2 ) of the sustained-release antibacterial film is The value divided by the volume (cm 3 ) of is 0.02 or more.
In order to make the amount of volatile antibacterial active ingredient in the container for low-temperature preservation of agricultural and horticultural crops of the present invention appropriate, it is particularly important to satisfy this "requirement 3". If the ratio of this "requirement 3" is smaller than 0.02, the amount of volatile antibacterial active ingredient in the container for low-temperature storage of agricultural and horticultural crops is insufficient, and the antifungal effect on the agricultural and horticultural crops in the storage container is not achieved. I can't. By setting the ratio of "requirement 3" to 0.02 or more, it is possible to reliably suppress the significant decline in the commercial value of agricultural and horticultural crops due to mold, and to prevent quality deterioration such as odor transfer and discoloration due to antibacterial active ingredients. It becomes possible to provide a container for low-temperature storage of agricultural and horticultural crops that is suitable for distribution and storage without causing any damage.
以下、実施例を挙げて本発明を説明するが、本発明の技術範囲はこれらにより限定されるものではない。 The present invention will be explained below with reference to Examples, but the technical scope of the present invention is not limited by these.
＜徐放性抗菌フィルムの調製＞
揮散性抗菌活性化合物であるヒノキチオールを、ロール・ツー・ロール（roll to roll）方式の蒸着重合膜形成装置を用いて、ポリエチレンテレフタレート（ＰＥＴ）製フィルム（厚さ：１２μｍ）上に、有効成分量が１．３ｍｇ/ｃｍ２となるように揮散性抗菌活性成分層を形成した。次いで、同じ蒸着重合膜形成装置を用いて、ポリユリア樹脂からなる蒸着重合膜を作製した。ポリユリア樹脂からなる蒸着重合膜は、厚さ：４μｍにて作製した。
<Preparation of sustained release antibacterial film>
The active ingredient amount of hinokitiol, a volatile antibacterial active compound, was applied onto a polyethylene terephthalate (PET) film (thickness: 12 μm) using a roll-to-roll vapor deposition polymer film forming device. A volatile antibacterial active ingredient layer was formed so that the amount of antibacterial active ingredient was 1.3 mg/cm 2 . Next, a vapor-deposited polymeric film made of polyurea resin was produced using the same vapor-deposited polymeric film forming apparatus. A vapor-deposited polymer film made of polyurea resin was produced with a thickness of 4 μm.
＜農園芸作物低温保存に関する試験１＞
保存用容器として、中敷きザル付きの密閉容器１（容量：１，１００ｃｍ３、底面サイズ：外寸１５０ｍｍ×１３４ｍｍ、高さ：外寸７７ｍｍ）を使用した。図１に示すように、保存用容器の底面に蒸留水（２０ｍＬ）を浸したペーパータオルを敷いて、湿度を保持できるようにし（図１中の１）、中敷きザルには包装用スポンジ載置し（図１中の２）、保存用容器の蓋部内側に調製した徐放性抗菌フィルム１（面積：７８ｃｍ２）を両面テープにより貼り（図１中の３）、使用した。上記保存用容器は、本発明における「要件３」が約０．０７１である。
保存する農園芸作物として、シャインマスカットの果粒を使用した。図１に示すように、包装用スポンジ載置した中敷きザルに１２粒を入れ（図１中の４のように）、滅菌水を噴霧した後、風乾したものを使用した。これを、図１中の１にセットして蓋（図１中の３）を閉めたものを実施例１として保存試験を行った。
徐放性抗菌フィルムを使用しない点でのみ相違する保存用容器を比較例１として、同様の保存試験を行った。
保存開始から１週間毎に観察し、各試験区に発生した腐敗果を確認し、その数をカウントした。なお、腐敗果は観察確認時に取り除いた。
保存試験は、それぞれ３回実施して、累積腐敗果率（％）の平均値を算出した。
表１に、保存温度５℃における試験結果をまとめて示す。
<Test 1 on low temperature preservation of agricultural and horticultural crops>
As a storage container, an airtight container 1 (capacity: 1,100 cm 3 , bottom size: external dimension 150 mm×134 mm, height: external dimension 77 mm) with a colander lined was used. As shown in Figure 1, a paper towel soaked with distilled water (20 mL) is placed on the bottom of the storage container to maintain humidity (1 in Figure 1), and a packaging sponge is placed on the inner colander. (2 in Figure 1), the prepared sustained-release antibacterial film 1 (area: 78 cm2 ) was attached to the inside of the lid of the storage container with double-sided tape (3 in Figure 1) and used. The above storage container has "requirement 3" of about 0.071 in the present invention.
Shine Muscat fruit was used as an agricultural and horticultural crop to be preserved. As shown in FIG. 1, 12 grains were placed in a colander with an insole placed on a packaging sponge (as shown in 4 in FIG. 1), sprayed with sterile water, and air-dried before use. This was set to 1 in FIG. 1 and the lid (3 in FIG. 1) was closed, and a storage test was conducted as Example 1.
A similar storage test was conducted using a storage container as Comparative Example 1, which differed only in that no sustained-release antibacterial film was used.
Observations were made every week from the start of storage to confirm rotten fruit that had occurred in each test plot, and the number thereof was counted. Note that rotten fruits were removed during observation and confirmation.
The storage test was performed three times each, and the average value of the cumulative rotten fruit rate (%) was calculated.
Table 1 summarizes the test results at a storage temperature of 5°C.
表１に示すとおり、本発明の農園芸作物低温保存用容器（実施例１）は、保存開始から７０日間（２．５カ月間）経過しても腐敗果が全く無く、保存開始から９１日間（３カ月以上）経過後の累積腐敗果率の平均が１１．１％であった。また、保存開始から９１日経過後の果粒は、揮散性抗菌活性成分による匂い移りや変色などの品質劣化は確認されなかった。これに対して、本発明のものとは異なる保存用容器を使用した場合（比較例１）では、保存開始から２１日間（３週間）経過した時点で累積腐敗果率の平均が８．３％であり、９１日間（３カ月以上）経過後には６９．４％に達した。
すなわち、本発明の農園芸作物低温保存用容器を使用することにより、高価であり商品価値の高いシャインマスカットの様な農園芸作物のカビによる腐敗を、有効に抑制し得ることが明らかとなった。
一方、詳細な試験データは省略するものの、本発明の農園芸作物低温保存用容器を使用して、本発明の低温の定義から外れる２０℃で保存した場合、２１日（３週間）までに果粒表面に褐色の斑点が現れ、その後４９日（７週間）までに全ての果粒の腐敗が確認された。この結果は、本発明の農園芸作物低温保存用容器を使用しても、低温保存以外の条件下では、抗菌活性成分による変色などの品質劣化が発生し、その後、腐敗が助長されることを示唆するものと考えている。
As shown in Table 1, the container for low-temperature storage of agricultural and horticultural crops of the present invention (Example 1) showed no rotten fruit even after 70 days (2.5 months) from the start of storage, and 91 days after the start of storage. The average cumulative rotten fruit rate after 3 months or more was 11.1%. In addition, no quality deterioration such as odor transfer or discoloration due to volatile antibacterial active ingredients was observed in the fruit 91 days after the start of storage. In contrast, when a storage container different from that of the present invention was used (Comparative Example 1), the average cumulative rotten fruit rate was 8.3% after 21 days (3 weeks) from the start of storage. It reached 69.4% after 91 days (more than 3 months).
In other words, it has been revealed that by using the container for low-temperature storage of agricultural and horticultural crops of the present invention, it is possible to effectively suppress rot caused by mold in agricultural and horticultural crops such as Shine Muscat, which is expensive and has high commercial value. .
On the other hand, although detailed test data will be omitted, when using the container for low-temperature preservation of agricultural and horticultural crops of the present invention and storing it at 20°C, which is outside the definition of low temperature according to the present invention, the fruit will ripen by 21 days (3 weeks). Brown spots appeared on the grain surface, and rot in all the fruit grains was confirmed by 49 days (7 weeks) thereafter. This result shows that even if the containers for low-temperature storage of agricultural and horticultural crops of the present invention are used, quality deterioration such as discoloration due to antibacterial active ingredients occurs under conditions other than low-temperature storage, and spoilage is then promoted. I think it's suggestive.
＜農園芸作物低温保存に関する試験２＞
上記「農園芸作物低温保存に関する試験１」と同じ中敷きザル付きの密閉容器１（容量：１，１００ｃｍ３、底面サイズ：外寸１５０ｍｍ×１３４ｍｍ、高さ：外寸７７ｍｍ）に果粒１２粒と徐放性抗菌フィルム１（面積：７８ｃｍ２）を、同様の容器２（容量：５，０００ｃｍ３、底面サイズ：外寸２１３ｍｍ×２６３ｍｍ、高さ：外寸１３０ｍｍ）に果粒２５粒と徐放性抗菌フィルム２（面積：３１２ｃｍ２）を、それぞれ使用して、上記「農園芸作物低温保存に関する試験１」と同様にセットした。
保存する農園芸作物として、灰色かび病菌分生子懸濁液（１０６個／ｍＬ）を噴霧接種した後、風乾したシャインマスカットの果粒を使用し保存温度５℃における保存試験を行った。なお、容器１（実施例２、比較例２）は蒸留水（２０ｍＬ）を、容器２（実施例３、比較例３）は蒸留水（１００ｍＬ）を用いて湿度を保持した。
保存開始から１週間毎に観察し、各試験区に発生した腐敗果を確認し、その数をカウントした。なお、腐敗果は観察確認時に取り除いた。
保存試験は、実施例２、比較例２が５回、実施例３、比較例３は４回実施して、累積腐敗果率（％）の平均値を算出した。
表２に、試験結果をまとめて示す。
<Test 2 on low temperature preservation of agricultural and horticultural crops>
Twelve fruit grains are placed in an airtight container 1 (capacity: 1,100 cm 3 , bottom size: external dimensions 150 mm x 134 mm, height: external dimensions 77 mm) with the same colander lined as in "Test 1 for low-temperature preservation of agricultural and horticultural crops". Sustained-release antibacterial film 1 (area: 78 cm 2 ) was placed in a similar container 2 (capacity: 5,000 cm 3 , bottom size: external dimension 213 mm x 263 mm, height: external dimension 130 mm) with 25 fruit particles for sustained release. Antibacterial film 2 (area: 312 cm 2 ) was used and set in the same manner as in the above-mentioned "Test 1 regarding low-temperature preservation of agricultural and horticultural crops."
As agricultural and horticultural crops to be stored, a storage test was conducted at a storage temperature of 5° C. using air-dried Shine Muscat fruit grains that were spray-inoculated with a Botrytis conidia suspension (10 6 conidia/mL). In addition, humidity was maintained using distilled water (20 mL) in Container 1 (Example 2, Comparative Example 2) and distilled water (100 mL) in Container 2 (Example 3, Comparative Example 3).
Observations were made every week from the start of storage to confirm rotten fruit that had occurred in each test plot, and the number thereof was counted. Note that rotten fruits were removed during observation and confirmation.
The storage test was performed five times for Example 2 and Comparative Example 2, and four times for Example 3 and Comparative Example 3, and the average value of the cumulative rotten fruit rate (%) was calculated.
Table 2 summarizes the test results.
この「農園芸作物低温保存に関する試験２」は、強制的に灰色かび病菌を接種する非常に厳しい環境を模した、保存試験である。
表２に示すとおり、本発明とは異なる保存用容器である比較例２は、保存開始から２８日目に試験果粒の全てが、同じく本発明とは異なる保存用容器である比較例３では、試験果粒の９８％が腐敗した。
一方、このような非常に厳しい条件下の保存試験においても、本発明の農園芸作物低温保存用容器（実施例２、３）では、農園芸作物のカビによる腐敗は試験果粒の概略５分の１以下程度に留まり、特に、実施例３では試験果粒の６％と、腐敗抑制効果に極めて優れていることが明らかとなった。また、この優れた腐敗抑制効果は「要件１」の保存用容器の容積の違いに関わらず、発揮されることが明らかとなった。
また、実施例２、３の保存開始から２８日経過後の果粒は、抗菌活性成分による匂い移りや変色などの品質劣化は確認されなかった。
This ``Test 2 on low-temperature storage of agricultural and horticultural crops'' is a storage test that simulates a very harsh environment in which the crops are forcibly inoculated with Botrytis blight.
As shown in Table 2, in Comparative Example 2, which is a storage container different from that of the present invention, on the 28th day from the start of storage, all of the test fruit grains were , 98% of the test grains rotted.
On the other hand, even in a storage test under such extremely severe conditions, with the containers for low-temperature storage of agricultural and horticultural crops of the present invention (Examples 2 and 3), mold rot of the agricultural and horticultural crops occurred within approximately 5 minutes of the test fruit. In particular, in Example 3, it was 6% of the test fruit grains, demonstrating an extremely excellent spoilage inhibiting effect. Furthermore, it has become clear that this excellent spoilage inhibiting effect is exhibited regardless of the difference in the volume of the storage container that meets "Requirement 1."
Moreover, in the fruit grains after 28 days from the start of storage in Examples 2 and 3, no quality deterioration such as odor transfer or discoloration due to antibacterial active ingredients was observed.
＜農園芸作物低温保存に関する試験３＞
上記「農園芸作物低温保存に関する試験１」と同じ中敷きザル付きの密閉容器１（容量：１，１００ｃｍ３、底面サイズ：外寸１５０ｍｍ×１３４ｍｍ、高さ：外寸７７ｍｍ）に果粒１２粒、徐放性抗菌フィルム１（面積：７８ｃｍ２）、徐放性抗菌フィルム３（面積：３９ｃｍ２）、徐放性抗菌フィルム４（面積：１９ｃｍ２）をそれぞれ使用し、上記「農園芸作物低温保存に関する試験１」と同様にセットし、蒸留水（２０ｍＬ）を用いて湿度を保持した。
保存する農園芸作物として、灰色かび病菌分生子懸濁液（１０６個／ｍＬ）を噴霧接種した後、風乾したシャインマスカット果粒を使用し温度５℃における保存試験を行った。
保存開始から１週間毎に観察し、各試験区に発生した腐敗果を確認し、その数をカウントした。なお、腐敗果は観察確認時に取り除いた。
保存試験は、それぞれ４回実施して、累積腐敗果率（％）の平均値を算出した。
表３に、試験結果をまとめて示す。
<Test 3 on low temperature preservation of agricultural and horticultural crops>
In a sealed container 1 (capacity: 1,100 cm 3 , bottom size: external dimension 150 mm x 134 mm, height: external dimension 77 mm) with the same inner colander as in the above "Test 1 for low-temperature storage of agricultural and horticultural crops", 12 fruit grains, Sustained-release antibacterial film 1 (area: 78 cm 2 ), sustained-release antibacterial film 3 (area: 39 cm 2 ), and sustained-release antibacterial film 4 (area: 19 cm 2 ) were used, and It was set up in the same manner as in "Test 1", and humidity was maintained using distilled water (20 mL).
As agricultural and horticultural crops to be stored, a storage test was conducted at a temperature of 5° C. using air-dried Shine Muscat fruit grains that were spray-inoculated with a conidia suspension (10 6 conidia/ml) of Botrytis blight.
Observations were made every week from the start of storage to confirm rotten fruit that had occurred in each test plot, and the number thereof was counted. Note that rotten fruits were removed during observation and confirmation.
The storage test was conducted four times each, and the average value of the cumulative rotten fruit rate (%) was calculated.
Table 3 summarizes the test results.
この「農園芸作物低温保存に関する試験３」は、強制的に灰色かび病菌を接種する非常に厳しい環境を模した、保存試験である。
表３に示すとおり、本発明とは異なる保存用容器である比較例５は、保存開始から２８日目において、試験果粒の９７．９％が腐敗した。
一方、このような非常に厳しい条件下の保存試験においても、本発明の農園芸作物低温保存用容器（実施例４、５）では、農園芸作物のカビによる腐敗は、保存開始から７０日（２．５カ月）経過後においても、試験果粒の概略３０％以下に留まり、腐敗抑制効果に極めて優れていることが明らかとなった。
一方、比較例４は、本発明における「要件３」、すなわち保存用容器の容積（ｃｍ３）に対する、徐放性抗菌フィルムの面積（ｃｍ２）の比が約０．０１７であるため、本発明の保存用容器とは相違する。そのため、比較例４での保存では、保存開始から２８日目以降の農園芸作物のカビによる腐敗の進行が、実施例の２．５～４倍程度にまで進むことが確認された。
This ``Test 3 on low-temperature storage of agricultural and horticultural crops'' is a storage test that simulates a very harsh environment in which the crops are forcibly inoculated with Botrytis blight.
As shown in Table 3, in Comparative Example 5, which is a storage container different from that of the present invention, 97.9% of the test fruit rotted on the 28th day after the start of storage.
On the other hand, even in storage tests under such extremely severe conditions, the containers for low-temperature storage of agricultural and horticultural crops of the present invention (Examples 4 and 5) showed that mold-induced rot of agricultural and horticultural crops occurred within 70 days (from the start of storage). Even after 2.5 months), the amount remained at approximately 30% or less of the test fruit grains, demonstrating an extremely excellent spoilage inhibiting effect.
On the other hand, Comparative Example 4 meets "requirement 3" in the present invention, that is, the ratio of the area (cm 2 ) of the sustained-release antibacterial film to the volume (cm 3 ) of the storage container is about 0.017, so the present invention This is different from the storage container of the invention. Therefore, in the storage in Comparative Example 4, it was confirmed that after the 28th day from the start of storage, the rot due to mold in the agricultural and horticultural crops progressed to about 2.5 to 4 times that in Example.
＜農園芸作物低温保存に関する試験４＞
中敷きザル付きの密閉容器３（容量：０．００３０ｍ３、底面サイズ：外寸２３９ｍｍ×１７６ｍｍ、高さ：外寸９１ｍｍ）に果粒４１粒を入れ、徐放性抗菌フィルム５（面積：２３３ｃｍ２）、徐放性抗菌フィルム１（面積：７８ｃｍ２）それぞれを使用し、上記「農園芸作物低温保存に関する試験１」と同様に、滅菌水を噴霧接種（無接種）した後、風乾した果粒について、表４に示す保存温度における保存試験を行った。なお、容器３は蒸留水（６０ｍＬ）を用いて湿度を保持した。
保存開始から１週間毎に観察し、各試験区に発生した腐敗果を確認し、その数をカウントした。なお、腐敗果は観察確認時に取り除いた。
保存試験は、それぞれ３回実施して、累積腐敗果率（％）の平均値を算出した。
表４に、試験結果をまとめて示す。なお、比較例８、９は、保存開始から２１日目の結果において、実施例６、７と大きな差が出たことからこれ以上の経過観察は必要ないと判断し試験を終了した。表４中「－」は、試験観察を実施しなかったことを意味する。
<Test 4 on low temperature preservation of agricultural and horticultural crops>
41 fruit granules were placed in an airtight container 3 (capacity: 0.0030 m 3 , bottom size: external dimensions 239 mm x 176 mm, height: external dimension 91 mm) with a colander lined with sustained release antibacterial film 5 (area: 233 cm 2 ) . ) and sustained-release antibacterial film 1 (area: 78 cm 2 ), and air-dried fruit grains after spray inoculation with sterile water (no inoculation) in the same manner as in the above "Test 1 on low-temperature storage of agricultural and horticultural crops." A storage test was conducted at the storage temperatures shown in Table 4. Note that the humidity in container 3 was maintained using distilled water (60 mL).
Observations were made every week from the start of storage to confirm rotten fruit that had occurred in each test plot, and the number thereof was counted. Note that rotten fruits were removed during observation and confirmation.
The storage test was performed three times each, and the average value of the cumulative rotten fruit rate (%) was calculated.
Table 4 summarizes the test results. In addition, Comparative Examples 8 and 9 showed a large difference from Examples 6 and 7 in the results on the 21st day from the start of storage, so it was determined that no further follow-up observation was necessary and the test was terminated. In Table 4, "-" means that no test observation was performed.
表４に示すとおり、本発明の農園芸作物低温保存用容器（実施例６、７）は、一般的な保存状態を模した灰色かび病菌の無接種保存において、本発明のものとは異なる保存用容器（比較例６、７）に比べて、農園芸作物のカビによる腐敗抑制効果に極めて優れていることが明らかとなった。また、実施例６、７の保存開始から２８日経過後の果粒は、抗菌活性成分による匂い移りや変色などの品質劣化は確認されなかった。
一方、本発明の低温の定義から外れる２３℃で保存した場合（比較例８、９）、徐放性抗菌フィルムを使用（比較例８）しても、カビによる腐敗抑制効果が得られないことも明らかとなった。さらに、比較例８において、保存開始から約１０日目で変色がみられた。この結果は、本発明の農園芸作物低温保存用容器を使用しても、低温保存以外の条件下では、抗菌活性成分による変色などの品質劣化が発生し、その後、腐敗が助長されることを示唆するものと考えている。
As shown in Table 4, the containers for low-temperature preservation of agricultural and horticultural crops of the present invention (Examples 6 and 7) differed from those of the present invention in the non-inoculation preservation of botrytis, which simulates general storage conditions. It has been revealed that this container has an extremely superior effect of inhibiting mold-induced rot in agricultural and horticultural crops compared to containers for commercial use (Comparative Examples 6 and 7). Further, in the fruit grains of Examples 6 and 7 after 28 days from the start of storage, no quality deterioration such as odor transfer or discoloration due to antibacterial active ingredients was observed.
On the other hand, when stored at 23°C, which is outside the definition of low temperature in the present invention (Comparative Examples 8 and 9), even if a sustained release antibacterial film is used (Comparative Example 8), the effect of inhibiting mold-induced spoilage cannot be obtained. It also became clear. Furthermore, in Comparative Example 8, discoloration was observed about 10 days after the start of storage. This result shows that even if the containers for low-temperature storage of agricultural and horticultural crops of the present invention are used, quality deterioration such as discoloration due to antibacterial active ingredients occurs under conditions other than low-temperature storage, and spoilage is then promoted. I think it's suggestive.
本発明の容器に備えられている徐放性抗菌フィルムは、揮散性抗菌活性成分透過層が蒸着重合膜により構成されていることから、揮散性抗菌活性成分層に含有される特定の揮散性抗菌活性化合物を安定的に放出させることが可能であり、保存用容器の容積（要件１）と当該徐放性抗菌フィルムの面積（要件２）とを特定の範囲のものとし、さらに当該容積に対する当該面積の比を特定の数値以上（要件３）とすることにより、保存用容器内の揮散した抗菌活性成分量を適正なものととすることができる。これらの相乗効果により、農園芸作物の品質を低下させることなく、カビによる農園芸作物の商品価値の著しい低下を確実に抑制することができ非常に有用である。 Since the sustained-release antibacterial film provided in the container of the present invention has a volatile antibacterial active ingredient permeable layer composed of a vapor-deposited polymer film, the sustained release antibacterial film contained in the volatile antibacterial active ingredient layer can It is possible to stably release the active compound, and the volume of the storage container (requirement 1) and the area of the sustained-release antibacterial film (requirement 2) are within a specific range, and the By setting the area ratio to a specific value or more (requirement 3), the amount of volatilized antibacterial active ingredient in the storage container can be made appropriate. These synergistic effects are extremely useful because they can reliably suppress a significant decrease in the commercial value of agricultural and horticultural crops due to mold without reducing the quality of the agricultural and horticultural crops.
Claims (4)
沸点が１００～２４０℃の範囲にある揮散性抗菌活性化合物群から選択される１種以上を含有する揮散性抗菌活性成分層と、
蒸着重合膜からなる揮散性抗菌活性成分透過層を、
この順で積層してなる徐放性抗菌フィルムと、
前記徐放性抗菌フィルムとは別の素材により構成される保存用箱形状容器を備え、
前記徐放性抗菌フィルムは保存用箱形状容器の上面部に配され、
低温が－３℃以上１５℃以下の温度範囲であり、かつ、
下記要件１～３を満たす農園芸作物低温保存用箱形状容器。
［要件１］；保存用箱形状容器の容積が５００ｃｍ３以上５，０００ｃｍ３以下である。
［要件２］；徐放性抗菌フィルムの面積が１０ｃｍ２以上５００ｃｍ２以下である。
［要件３］；保存用箱形状容器の容積（ｃｍ３）に対する、徐放性抗菌フィルムの面積（ｃｍ２）の比が、０．０２以上０．０７８以下である。 a base film layer;
a volatile antibacterial active ingredient layer containing one or more types selected from the group of volatile antibacterial active compounds having a boiling point in the range of 100 to 240°C;
Volatile antibacterial active ingredient permeable layer made of vapor-deposited polymer film,
A sustained release antibacterial film laminated in this order ,
A storage box-shaped container made of a material different from the sustained-release antibacterial film ,
The sustained-release antibacterial film is placed on the top of the storage box-shaped container,
The low temperature is in the temperature range of -3°C or higher and 15°C or lower, and
A box-shaped container for low-temperature storage of agricultural and horticultural crops that meets requirements 1 to 3 below.
[Requirement 1]; The volume of the storage box-shaped container is 500 cm 3 or more and 5,000 cm 3 or less.
[Requirement 2]; The area of the sustained-release antibacterial film is 10 cm 2 or more and 500 cm 2 or less.
[Requirement 3]; The ratio of the area (cm 2 ) of the sustained-release antibacterial film to the volume (cm 3 ) of the storage box-shaped container is 0.02 or more and 0.078 or less .
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| CN202180021916.3A CN115298113A (en) | 2020-04-07 | 2021-03-18 | Container for low-temperature preservation of agricultural and horticultural crops |
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