JP2006199852A - Antibacterial biodegradable film or antibacterial biodegradable formed film for foodstuff - Google Patents
Antibacterial biodegradable film or antibacterial biodegradable formed film for foodstuff Download PDFInfo
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- JP2006199852A JP2006199852A JP2005013965A JP2005013965A JP2006199852A JP 2006199852 A JP2006199852 A JP 2006199852A JP 2005013965 A JP2005013965 A JP 2005013965A JP 2005013965 A JP2005013965 A JP 2005013965A JP 2006199852 A JP2006199852 A JP 2006199852A
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- film
- biodegradable
- antibacterial
- food
- isothiocyanate
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Abstract
Description
本発明は、生成食品の保存や流通時に、生鮮食品や包装材料に付着又は浮遊している微生物や黴の繁殖を抑制し、食品の品質を保持するのに有効である、環境適合性食品用フィルム又は食品用成型フィルムに関する。 The present invention is for environmentally-friendly foods that are effective in suppressing the growth of microorganisms and straw adhering to or floating on fresh foods and packaging materials and maintaining the quality of foods during storage and distribution of the produced foods. The present invention relates to a film or a molded film for food.
近年、コンビニエンスストアや各種弁当専門店等の繁栄により、各種食品（例えば、弁当、和菓子、ケーキ、惣菜）が製造工場から各店舗に届けられるまでの流通時及び当該食品をユーザが食するまでの期間、当該食品の日持ちを確実に担保する手段が、益々重要になってきている。特に、微生物の増殖やカビ発生は、食中毒の原因にもなるので、これらを抑制することは極めて重要である。 In recent years, due to the prosperity of convenience stores and various bento specialty stores, various foods (for example, lunch boxes, Japanese sweets, cakes, side dishes) are distributed until they are delivered from the manufacturing plant to each store, and until the user eats the food. Means to ensure the shelf life of the food over time have become increasingly important. In particular, the growth of microorganisms and the generation of fungi can cause food poisoning, so it is extremely important to suppress them.
ところで、従来、この種の抗菌性食品用フィルムとして、例えば合成樹脂フィルムを製造する際に樹脂中に抗菌性ゼオライト等の無機物を分散させたフィルムがある。しかしながら、このような抗菌性食品用フィルムは、生鮮食品と直接接触した部分では抗菌効果を発揮するものの、生鮮食品と直接接触していない部分においては微生物の繁殖を抑制するのが困難であり、生鮮食品の品質保持が部分的で不十分であるという問題がある。更には、合成樹脂フィルムは、通常、ポリエステル、ポリプロピレン、ポリエチレン等を用いた、そのまま廃棄できない石油系の物質で構成されている。したがって、ユーザにとっては、分別回収を行なう必要があり非常に面倒であると共に、その面倒さ故、例えば、山や海等の観光地においては、前記物質が廃棄され、その結果、国内の多くの観光地が深刻なゴミ問題という悩みを抱えているというのが実情である。
そこで、本発明は、人体に影響が無く安全性の高い抗菌作用を有する食品用フィルム又は成型フィルムの提供を第一の目的とし、更に、抗菌性に加え生分解性を有する食品用フィルム又は成型フィルムの提供を第二の目的とする。 Accordingly, the first object of the present invention is to provide a food film or a molded film having a highly safe antibacterial action without affecting the human body, and further, a food film or molded film having biodegradability in addition to antibacterial properties. The second purpose is to provide a film.
本発明（１）は、生分解性フィルムにイソチアン酸エステル類化合物及び／又はテルペン類化合物のサイクロデキストリン包接物をコーティングしてなる食品用抗菌生分解性フィルム又は食品用抗菌生分解性成型フィルムである。 The present invention (1) is a food antibacterial biodegradable film or food antibacterial biodegradable molded film obtained by coating a biodegradable film with a cyclodextrin inclusion product of an isothiocyanate ester compound and / or a terpene compound. It is.
本発明（２）は、紙、レーヨン紙及び不織布から選択される基材が、生分解性接着剤を介して前記生分解性フィルムにドライラミネート加工されている、前記発明（１）の食品用抗菌生分解性フィルム又は食品用抗菌生分解性成型フィルムである。 In the present invention (2), the base material selected from paper, rayon paper and non-woven fabric is dry laminated on the biodegradable film via a biodegradable adhesive. An antibacterial biodegradable film or an antibacterial biodegradable molded film for food.
本発明（３）は、更に生分解性インキが使用されている、前記発明（１）又は（２）の食品用抗菌生分解性フィルム又は食品用抗菌生分解性成型フィルムである。 The present invention (3) is the antibacterial biodegradable film for food or the antibacterial biodegradable molded film for food of the invention (1) or (2), wherein a biodegradable ink is further used.
本発明によれば、基本的な構成に関してはすべて生分解性なので、環境に優しく分別回収の必要がない。更に、揮発性で強い刺激臭があったイソチアン酸エステル類等をサイクロデキストリンで包接して無臭化させたものを用いている（常温では無臭で、湿度４０％以下では刺激臭が無い）ので、非常に使いやすく安定したフィルム製剤（例えば弁当用フィルム製剤）を提供することを可能にした。加えて、食中毒・カビ・腐敗菌に対し、制菌作用があり、鮮度保持・日持ち向上に優れた効果を発揮する。また、水・水蒸気・湿気に反応し抗菌作用を発揮する。 According to the present invention, all of the basic configurations are biodegradable, so that they are environmentally friendly and do not require separate collection. In addition, it uses volatile and strong irritating isothiocyanate esters, etc. that are made non-brominated by cyclodextrin (no odor at room temperature and no irritating odor at humidity below 40%) It was possible to provide a film preparation (for example, a film preparation for a lunch box) that was very easy to use and stable. In addition, it has antibacterial action against food poisoning, mold, and spoilage bacteria, and exhibits excellent effects in maintaining freshness and improving shelf life. In addition, it reacts with water, water vapor, and moisture and exhibits antibacterial action.
以下、本明細書中の各用語の意義について説明すると共に、発明を実施するための最良形態について詳述する。尚、本発明の技術的範囲は、以下で詳述する最良形態に何ら限定されるものではない。 Hereinafter, the meaning of each term in the present specification will be described, and the best mode for carrying out the invention will be described in detail. The technical scope of the present invention is not limited to the best mode described in detail below.
イソチアン酸エステル類化合物とは、イソチアン酸エステル及びその誘導体を指し、例えば、イソチオシアン酸アリル、イソチオシアン酸イソアミル、イソチオシアン酸イソブチル、イソチオシアン酸イソプロピル、イソチオシアン酸エチル、イソチオシアン酸ニトロフェニル、イソチオシアン酸フェニル、イソチオシアン酸ブチル、イソチオシアン酸プロピル、イソチオシアン酸ベンジル、イソチオシアン酸メチルを挙げることができ、優れた効果から、イソチオシアン酸アリルがより好適である。 The isothiocyanate ester compound refers to isothiocyanate ester and derivatives thereof, such as allyl isothiocyanate, isoamyl isothiocyanate, isobutyl isothiocyanate, isopropyl isothiocyanate, ethyl isothiocyanate, nitrophenyl isothiocyanate, phenyl isothiocyanate, isothiocyanic acid. Examples thereof include butyl, propyl isothiocyanate, benzyl isothiocyanate, and methyl isothiocyanate, and allyl isothiocyanate is more preferable because of excellent effects.
テルペン類化合物としては、α−ピネン、Ｌ−リモネン、Ｄ−リモネン、モノテルペン、セスキテルペン等の炭化水素、テルペンアルコール、テルペンアルデヒド、テルペンケトン、テルペンオキシド、テルペン酸等が好適である。 As the terpene compound, α-pinene, L-limonene, D-limonene, monoterpene, sesquiterpene and other hydrocarbons, terpene alcohol, terpene aldehyde, terpene ketone, terpene oxide, terpene acid and the like are preferable.
前記イソチアン酸エステル類化合物及び／又は前記テルペン類化合物が包接されるサイクロデキストリンとは、澱粉に酵素（サイクロデキストリングルカノトランスフェラーゼ）を作用させて得られる環状オリゴ糖であり、グルコース残基の数が６個のα型、７個のβ型、８個のγ型のサイクロデキストリンが一般に使用されるが、その他マルトシルサイクロデキストリン、ジメチルサイクロデキストリンの如き分岐サイクロデキストリンや修飾サイクロデキストリン、又はサイクロデキストリンポリマー等も使用可能である。尚、当該包接化合物は、例えば、０．１〜７０重量％のサイクロデキストリン水溶液にイソチオシアネート類化合物及び／又はテルペン類化合物を混合攪拌し、次いで該混合液を噴霧乾燥することにより製造可能である。また、市販品としては、塩水港精糖株式会社からデキシーパールＫ−１００という商品名で入手可能である。 The cyclodextrin in which the isothiocyanate ester compound and / or the terpene compound is included is a cyclic oligosaccharide obtained by allowing an enzyme (cyclodextrin glucanotransferase) to act on starch, and the number of glucose residues. 6 α-type, 7 β-type and 8 γ-type cyclodextrins are generally used, but other branched cyclodextrins such as maltosyl cyclodextrins and dimethyl cyclodextrins, modified cyclodextrins, or cyclodextrins Polymers can also be used. The inclusion compound can be produced, for example, by mixing and stirring an isothiocyanate compound and / or terpene compound in a 0.1 to 70% by weight cyclodextrin aqueous solution, and then spray drying the mixture. is there. Moreover, as a commercial item, it can obtain under the brand name of Dixie Pearl K-100 from Shimizu Minato Seika Co., Ltd.
生物分解性プラスチックは、特に限定されず、例えば、ポリビニルアルコール（ＰＶＡ）、ポリ乳酸、ポリアルキレンサクシネート、ポリカプロラクトン（ＰＣＬ）、ポリエステルカーボネート、ポリアミノ酸、ポリエステルアミド、酢酸セルロース、澱粉、澱粉とＰＣＬとＰＶＡの混合物、キトサン、ポリヒドロキシブチレート／バリレート（ＰＨＢ／Ｖ）等がある。コストや使いやすさ等の理由からポリ乳酸が好適である。 The biodegradable plastic is not particularly limited. For example, polyvinyl alcohol (PVA), polylactic acid, polyalkylene succinate, polycaprolactone (PCL), polyester carbonate, polyamino acid, polyester amide, cellulose acetate, starch, starch and PCL And PVA mixtures, chitosan, polyhydroxybutyrate / valerate (PHB / V) and the like. Polylactic acid is preferred for reasons such as cost and ease of use.
生分解性インキは、特に限定されないが、例えば、生分解性のバインダー樹脂、当該バインダー樹脂を可溶化する溶媒、着色顔料又は磁性顔料とから構成されている。ここで、バインダー樹脂としては、例えば、澱粉変性物系や脂肪族ポリエステル系を挙げることができ、澱粉変性物系が好適である。市販品としては、例えば、澱粉変性物系としてはバイオテックカラーＨＧＣ（大日精化製）、脂肪族ポリエステル系としてはバイオテックカラーＨＧＰ（大日精化製）、ポリ乳酸系としてはバイオテックカラーＴＥ（大日精化製）、また、大豆蛋白質としてはDupont Soy Polymers社製のPro-Cote（登録商標）を挙げることができる。尚、着色顔料及び磁性顔料としては、従来のインキ組成物において用いられているものを適宜選択して使用することができる。例えば、カーミン６Ｂ、レッド２Ｂ、モノアゾエロー、ジスアゾエロー、ピラゾロンオレンジ、バルカンオレンジ、クロモフタロエロー、クロモフタルレッド等のアゾ顔料、銅フタロシアニンブルー、銅フタロシアニングリーン、ジオキサジンバイオレット、イソインドリノンエローベリレン、ペリノン、フラバントロン、チオインジゴ等の多環式顔料；無機顔料としては、酸化チタン、べんがら、沈降性硫酸バリウム、沈降性炭酸カルシウム、含水珪酸塩、無水珪酸塩、アルミニウム粉、カーボンブラック、パール顔料；磁性顔料としては、いわゆるハード磁性材、例えば磁性酸化鉄、コバルト被着磁性酸化鉄、バリウムフェライト等の高保磁力材等、鉄、ニッケル、クロム等の強磁性金属；いわゆるソフト磁性材、例えばパーマロイ、センダスト等の強磁性合金等の粉末を挙げることができる。 Although biodegradable ink is not specifically limited, For example, it is comprised from the biodegradable binder resin, the solvent which solubilizes the said binder resin, a coloring pigment, or a magnetic pigment. Here, examples of the binder resin include starch-modified products and aliphatic polyester-based materials, and starch-modified products are preferable. Commercially available products include, for example, biotech color HGC (manufactured by Dainichi Seika) for modified starch, biotech color HGP (manufactured by Dainichi Seika) for aliphatic polyester, and biotech color TE for polylactic acid. As a soy protein, Pro-Cote (registered trademark) manufactured by DuPont Soy Polymers may be mentioned. In addition, as a color pigment and a magnetic pigment, what is used in the conventional ink composition can be selected suitably, and can be used. For example, Carmine 6B, Red 2B, Monoazo Yellow, Disazo Yellow, Pyrazolone Orange, Vulcan Orange, Chromophthalo Yellow, Chromophthal Red, and other azo pigments, Copper Phthalocyanine Blue, Copper Phthalocyanine Green, Dioxazine Violet, Isoindolinone Yellow Berylene, Perinone , Flavantron, thioindigo and other polycyclic pigments; inorganic pigments include titanium oxide, red pepper, precipitated barium sulfate, precipitated calcium carbonate, hydrous silicate, anhydrous silicate, aluminum powder, carbon black, pearl pigment; magnetic Examples of the pigment include so-called hard magnetic materials such as magnetic iron oxide, cobalt-coated magnetic iron oxide, high coercive force materials such as barium ferrite, etc., ferromagnetic metals such as iron, nickel, and chromium; so-called soft magnetic materials such as permalloy, Powders such as ferromagnetic alloy such as dust and the like.
生分解性接着剤も、特に限定されず、例えば、ポリ乳酸系接着剤としてバイオテックＤＬ Ｅ−Ｌ（大日精化製）、Dupont Soy Polymers社製のPro-Cote（登録商標）の水溶液、ランディＰＬ−１０００（ミヨシ油脂株式会社製）、ランディＰＬ−２０００（ミヨシ油脂株式会社製）が使用可能である。 The biodegradable adhesive is not particularly limited. For example, as a polylactic acid adhesive, Biotech DL E-L (manufactured by Dainichi Seika), Pro-Cote (registered trademark) aqueous solution manufactured by DuPont Soy Polymers, Randy PL-1000 (made by Miyoshi Oil & Fat Co., Ltd.) and Randy PL-2000 (made by Miyoshi Oil & Fat Co., Ltd.) can be used.
本明細書にいう「抗菌」は、「殺菌」及び／又は「制菌」を意味し、更に「菌」は、カビ類等の微生物全般を含む。 As used herein, “antibacterial” means “bactericidal” and / or “antibacterial”, and “bacteria” includes all microorganisms such as molds.
次に、食品用抗菌生分解性フィルム又は食品用抗菌生分解性成型フィルムの製造方法について説明する。まず、生分解性フィルムを準備する。このフィルムに対し、イソチアン酸エステル類化合物及び／又はテルペン類化合物のサイクロデキストリン包接物溶液を塗布する。ここで、前記サイクロデキストリン包接物溶液の塗布方法は、特に制限されず、例えば、刷毛塗り、グラビアコーター、スプレー加工、ロールコーターを用いた方法、ディッピング法等がある。そして、塗布後、乾燥させて溶媒を除去することにより、前記サイクロデキストリン包接物の皮膜（コート層）がフィルム表面に形成される。尚、コーティングする範囲は、フィルム全体であっても一部であってもよい。 Next, the manufacturing method of the antimicrobial biodegradable film for foods or the antimicrobial biodegradable molded film for foods is demonstrated. First, a biodegradable film is prepared. A cyclodextrin inclusion solution of an isothiocyanate ester compound and / or a terpene compound is applied to this film. Here, the application method of the cyclodextrin inclusion product solution is not particularly limited, and examples thereof include brush coating, gravure coater, spray processing, a method using a roll coater, and a dipping method. And after apply | coating, it is made to dry and the solvent is removed, The film | membrane (coat layer) of the said cyclodextrin inclusion is formed in the film surface. The coating range may be the entire film or a part thereof.
また、前記サイクロデキストリン包接物の皮膜を形成する前に、フィルム表面に生分解性インキ層を形成させてもよい。この生分解性インキ層は、所定事項や図柄を印刷したり、ケースを着色等したりするために設けられる。 In addition, a biodegradable ink layer may be formed on the film surface before forming the cyclodextrin inclusion film. This biodegradable ink layer is provided for printing predetermined items and designs, coloring the case, and the like.
更に、前記フィルムに所定の基材（紙、レーヨン紙及び不織布）を生分解性接着剤で接着して積層体（ラミネート）を形成させてもよい。この場合、生分解性インキ層は、フィルム側に形成させても所定の基材上に形成させてもよい。また、積層方法は、使用する生分解性接着剤の種類やスペックに基づき、一般に行なわれる手法（例えばドライラミネート加工）で可能である。 Furthermore, a predetermined base material (paper, rayon paper, and nonwoven fabric) may be bonded to the film with a biodegradable adhesive to form a laminate (laminate). In this case, the biodegradable ink layer may be formed on the film side or on a predetermined substrate. Moreover, the lamination | stacking method is possible by the method (for example, dry lamination process) generally performed based on the kind and specification of the biodegradable adhesive to be used.
次に、図１〜図４を参照しながら、本発明に係る食品用抗菌生分解性フィルム及び食品用抗菌生分解性成型フィルムを説明する。尚、図中、１は生分解性フィルム、２は生分解性インキ層、３はサイクロデキストリン包接物層、４は生分解性接着剤層、５は基材である。まず、図１及び図３を参照しながら、本発明に係る食品用抗菌生分解性フィルムを説明する。当該フィルムＡは、生分解性フィルム１の一方の面に生分解性インキ層２が形成されており、更に前記層２にサイクロデキストリン包接物層３が形成されている。ここで、各フィルムや層の厚みは限定されず、例えば、１０μ〜５０μmの範囲である。そして、当該フィルムＡは、図３に示すように、例えば、弁当容器内の食材の上に置く形で利用される。次に、図２及び図４を参照しながら、本発明に係る食品用抗菌生分解性成型フィルムを説明する。当該フィルムＢは、一方の面に生分解性インキ層２が形成された生分解性フィルム１が、生分解性接着剤層４を介して基材５とラミネートされており、更に、当該積層体の表面にサイクロデキストリン包接物層３が形成されている。ここで、各フィルムや層の厚みは限定されず、図Ａの態様と同じく、例えば、１０μ〜５０μmの範囲である。成型用は厚みに限定しない。そして、当該フィルムＢは、図４に示すように、例えば、カップ等の食品を入れる容器として利用される。尚、本発明のフィルムや成型フィルムの形状は、図示した形状に限定されず、例えば、フィルムに関しては、波状、円形状、三角状、成型フィルムに関しては、角柱状、ひだ状等を含め、どのような形状でもよい。 Next, the antimicrobial biodegradable film for food and the antimicrobial biodegradable molded film for food according to the present invention will be described with reference to FIGS. In the figure, 1 is a biodegradable film, 2 is a biodegradable ink layer, 3 is a cyclodextrin inclusion layer, 4 is a biodegradable adhesive layer, and 5 is a substrate. First, the antibacterial biodegradable film for food according to the present invention will be described with reference to FIGS. 1 and 3. In the film A, a biodegradable ink layer 2 is formed on one surface of the biodegradable film 1, and a cyclodextrin inclusion layer 3 is formed on the layer 2. Here, the thickness of each film or layer is not limited, and is, for example, in the range of 10 μm to 50 μm. And the said film A is utilized in the form put, for example on the foodstuff in a lunch box, as shown in FIG. Next, the antibacterial biodegradable molded film for food according to the present invention will be described with reference to FIGS. In the film B, a biodegradable film 1 having a biodegradable ink layer 2 formed on one surface is laminated with a base material 5 via a biodegradable adhesive layer 4, and the laminate The cyclodextrin inclusion layer 3 is formed on the surface of the substrate. Here, the thickness of each film or layer is not limited, and is in the range of 10 μm to 50 μm, for example, as in the embodiment of FIG. Molding is not limited to thickness. And the said film B is utilized as a container which puts foodstuffs, such as a cup, as shown in FIG. In addition, the shape of the film or molded film of the present invention is not limited to the illustrated shape. For example, the film is wavy, circular, triangular, and the molded film is any shape including prismatic, pleated, etc. Such a shape may be used.
尚、本発明に係るフィルムの用途としては、例えば、弁当用抗菌シート・おせち用抗菌シート・フィルムケース（和菓子・洋菓子・惣菜用）を挙げることができる。また、使用に際しては、特にフィルムケースはサイクロデキストリン包接物のコート面を内側にすることで、食品（例えば惣菜）自身の抗菌効果が向上し、外側に向ければ弁当容器全体に抗菌効果をもらたすことができる。 In addition, as a use of the film which concerns on this invention, the antibacterial sheet for lunch, the antibacterial sheet for new year dishes, and a film case (for Japanese sweets, Western confectionery, side dish) can be mentioned, for example. In use, especially in the case of the film case, the antibacterial effect of the food (for example, side dish) itself is improved by making the coated surface of the cyclodextrin inclusion inside. Can be added.
以下、本発明に係る実施例を説明する。
製造例１（食品用抗菌生分解性フィルム）
２０重量％のサイクロデキストリン水溶液にイソチアン酸アリルをサイクロデキストリン固形分に対して１１重量％混合攪拌して包接化合物水溶液を得た後、ポリ乳酸二軸延伸フィルム（商品名「エコロージュ」、三菱樹脂株式会社製、融点１５５〜１７５℃）の表面に塗布し、乾燥させて１０〜３０μｍ厚のコート層を形成させ、本例のフィルムを得た。尚、前記ポリ乳酸二軸延伸フィルムの塗布面には、事前に、バイオテックカラーＨＧＣ（大日精化製）を用いて周知手段で模様を付したものを用いた。
Examples according to the present invention will be described below.
Production Example 1 (Antimicrobial biodegradable film for food)
A clathrate aqueous solution was prepared by mixing and stirring 20 wt% cyclodextrin aqueous solution with allyl isothiocyanate 11 wt% with respect to the cyclodextrin solid content, and then a polylactic acid biaxially stretched film (trade name "Ecology", Mitsubishi Plastics). The film of this example was obtained by applying onto a surface of a melting point of 155 to 175 ° C. and drying to form a coating layer having a thickness of 10 to 30 μm. In addition, the application surface of the polylactic acid biaxially stretched film was previously provided with a pattern by a well-known means using Biotech Color HGC (manufactured by Dainichi Seika).
製造例２（食品用抗菌生分解性成型フィルム）
バイオテックカラーＨＧＣ（大日精化製）を用いて周知手段で模様を付したポリ乳酸二軸延伸フィルム（商品名「エコロージュ」、三菱樹脂株式会社製、融点１５５〜１７５℃）の表面（模様を付した側）にランディＰＬ−２０００（ミヨシ油脂株式会社製）を塗布して乾燥させた後、レーヨンパルプ紙を重ねてローラで両者を挟んで加圧加熱成型して積層体を得た。次に、２０重量％のサイクロデキストリン水溶液にイソチアン酸アリルをサイクロデキストリン固形分に対して１１重量％混合攪拌して包接化合物水溶液を得た後、前記積層体の表面（紙側）に塗布し、乾燥させて１０〜３０μｍ厚のコート層を形成させ、本例の成型フィルムを得た。
Production Example 2 (Antimicrobial biodegradable film for food)
The surface of the polylactic acid biaxially stretched film (trade name “Ecologe”, manufactured by Mitsubishi Plastics Co., Ltd., melting point 155 to 175 ° C.) patterned with a well-known means using Biotech Color HGC (manufactured by Dainichi Seika) Randy PL-2000 (manufactured by Miyoshi Oil & Fats Co., Ltd.) was applied to the attached side) and dried, and then a rayon pulp paper was piled up, and both were sandwiched by a roller and subjected to pressure and heat molding to obtain a laminate. Next, after mixing and stirring allyl isothiocyanate in a 20% by weight cyclodextrin aqueous solution to 11% by weight with respect to the cyclodextrin solid content to obtain an inclusion compound aqueous solution, it was applied to the surface (paper side) of the laminate. And dried to form a coating layer having a thickness of 10 to 30 μm to obtain a molded film of this example.
試験例１（抗菌試験）
製造例１のフィルム及び製造例２の成型フィルムに関して、抗菌性の評価を行った。ここで、抗菌性試験は、サンプルを２０×２０ｃｍ大に製袋して、その中にマグロドリップを混釈した液体培地シャーレを入れて１０℃で４８時間放置した後、液体培地中の生菌数を測定して抗菌効果の有無を調査し、〇は抗菌効果が認められることを示し、×は認められないことを示している。結果を表１に示す。
Test example 1 (antibacterial test)
Antibacterial evaluation was performed on the film of Production Example 1 and the molded film of Production Example 2. Here, the antibacterial test was carried out by making a sample 20 × 20 cm in size, placing a liquid medium petri dish mixed with tuna drip in it and leaving it at 10 ° C. for 48 hours, and then living bacteria in the liquid medium. The number was measured for the presence or absence of antibacterial effect. ◯ indicates that antibacterial effect is observed, and × indicates that no antibacterial effect is observed. The results are shown in Table 1.
試験例２（生分解性試験）
製造例１のフィルム及び製造例２の成型フィルムに関して、抗菌性の評価を行った。ここで、生分解性試験は、１０ｃｍ×１０ｃｍ、厚さ０．２ｃｍの平板フィルムを調製し、このフィルムを土中に埋設して、生分解性をその重量変化によって調べた。重量の減少（２ヶ月後の重量減量率％）は、平板フィルムが生分解を受ける程度を示す。結果を表１に示す。
Test Example 2 (Biodegradability test)
Antibacterial evaluation was performed on the film of Production Example 1 and the molded film of Production Example 2. Here, in the biodegradability test, a flat film having a size of 10 cm × 10 cm and a thickness of 0.2 cm was prepared, this film was embedded in soil, and biodegradability was examined by a change in weight. The decrease in weight (weight loss rate% after 2 months) indicates the degree to which the flat film undergoes biodegradation. The results are shown in Table 1.
１ 生分解性フィルム
２ 生分解性インキ層
３ サイクロデキストリン包接物層
４ 生分解性接着剤層
５ 基材
６ 惣菜
７ ごはん
DESCRIPTION OF SYMBOLS 1 Biodegradable film 2 Biodegradable ink layer 3 Cyclodextrin inclusion layer 4 Biodegradable adhesive layer 5 Base material 6 Side dish 7 Rice
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| JP2006199852A5 JP2006199852A5 (en) | 2008-02-28 |
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| WO2009032199A1 (en) * | 2007-08-31 | 2009-03-12 | The Board Of Trustees Operating | Beta-cyclodextrins as nucleating agents for poly(lactic acid) |
| US7705078B2 (en) | 2004-06-25 | 2010-04-27 | Dupont Teijin Films U.S. Limited Partnership | Antimicrobial polymeric film |
| ITMI20082064A1 (en) * | 2008-11-20 | 2010-05-21 | Consiglio Naz Delle Ricerche 16 67 | METHOD FOR THE PRODUCTION OF A THERMOPLASTIC FILM CONTAINING A SUBSTANCE WITH ANTI-MICROBIAL ACTIVITY AND USE OF SUCH A FILM IN THE PRODUCTION OF FOOD PACKAGES |
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| JP7547785B2 (en) | 2020-05-25 | 2024-09-10 | Ｔｏｐｐａｎホールディングス株式会社 | Antibacterial Films and Packaging Materials |
| CN113337015A (en) * | 2021-06-17 | 2021-09-03 | 四川农业大学 | Preparation method of composite edible film |
| CN113337015B (en) * | 2021-06-17 | 2022-12-06 | 四川农业大学 | Preparation method of composite edible film |
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| CN114668855A (en) * | 2022-03-29 | 2022-06-28 | 大连工业大学 | Cyclodextrin inclusion compound with slow release effect and preparation method thereof |
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