WO2010035506A1 - Procédé pour produire un corps de plante séché - Google Patents

Procédé pour produire un corps de plante séché Download PDF

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Publication number
WO2010035506A1
WO2010035506A1 PCT/JP2009/004958 JP2009004958W WO2010035506A1 WO 2010035506 A1 WO2010035506 A1 WO 2010035506A1 JP 2009004958 W JP2009004958 W JP 2009004958W WO 2010035506 A1 WO2010035506 A1 WO 2010035506A1
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WO
WIPO (PCT)
Prior art keywords
plant body
plant
dried
range
temperature
Prior art date
Application number
PCT/JP2009/004958
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English (en)
Japanese (ja)
Inventor
金子康子
Original Assignee
国立大学法人埼玉大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 国立大学法人埼玉大学 filed Critical 国立大学法人埼玉大学
Priority to JP2010530749A priority Critical patent/JP5560193B2/ja
Publication of WO2010035506A1 publication Critical patent/WO2010035506A1/fr

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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
    • A01N3/00—Preservation of plants or parts thereof, e.g. inhibiting evaporation, improvement of the appearance of leaves or protection against physical influences such as UV radiation using chemical compositions; Grafting wax

Definitions

  • the present invention relates to a method for producing a dried plant body that retains the color, fragrance and feel of the plant body and can maintain these states for a long time.
  • Dried flowers or dried plants obtained by drying fresh flowers or plants are well known. These dried flowers and the like are mainly produced by any one of a drying method by natural drying, a drying method by a desiccant, and a drying method by freeze drying (Patent Documents 1 and 2). However, neither method has preserved the color, scent, and feel of the original fresh flowers or plants.
  • Preserved flowers are natural flowers and plants, but the colors and scents are artificial. Preserved flowers have the advantage that they can give colors and fragrances that do not exist in nature, but on the other hand, they do not retain the colors and scents of real flowers and plants, but are merely artificial. The desire to enjoy fresh flowers and plants in a state closer to nature cannot be satisfied, and it is desired to provide a technology that can maintain fresh flowers and plants in a state closer to nature.
  • an object of the present invention is to provide a method for producing a dried plant body that retains the color, fragrance, and feel of plants such as fresh flowers and plants in a state close to nature and can maintain these states for a long period of time. is there.
  • the present invention is as follows. [1] (1) a step of absorbing an aqueous solution of saccharides and denaturation inhibitor at a temperature of 0 to 10 ° C. A step (2) of maintaining the plant body that has absorbed the aqueous solution at a temperature in the range of ⁇ 10 to ⁇ 20 ° C., and a step (3) of obtaining the dried plant body by vacuum drying the obtained plant body A method for producing a dried plant comprising: [2] The production method according to [1], wherein the saccharide is sucrose, fructose, or glucose. [3] The production method according to [1] or [2], wherein the denaturation inhibitor is a plant browning inhibitor, a chlorophyll degradation inhibitor, or a carotenoid degradation inhibitor.
  • step (1) is performed in the range of 6 hours to 120 hours.
  • step (2) is performed in the range of 1 hour to 24 hours.
  • step (3) is performed at a temperature in the range of ⁇ 10 to ⁇ 20 ° C.
  • step (4) of heat-treating the dried plant obtained in the step (3).
  • maintained the color, fragrance, and touch which a natural fresh flower and a plant have
  • this dry plant body can continue to hold
  • the present invention relates to a method for producing a dried plant, (1) a step of absorbing an aqueous solution of saccharides and denaturation inhibitor at a temperature of 0 to 10 ° C. A step (2) of maintaining the plant body that has absorbed the aqueous solution at a temperature in the range of ⁇ 10 to ⁇ 20 ° C., and a step (3) of obtaining the dried plant body by vacuum drying the obtained plant body Is included.
  • the plant body is allowed to absorb an aqueous solution of saccharide and denaturation inhibitor at a temperature of 0 to 10 ° C.
  • the plant used here is not particularly limited, and can be, for example, a picked flower, a cut flower, a cut foliage, or a cut branch. Moreover, there is no restriction
  • the saccharide absorbed by the plant body can be, for example, sucrose.
  • sucrose By allowing the plant body to absorb the sugar, the dried plant body obtained through the steps (2) and (3) can be dried while maintaining the form of the original plant tissue. Ingredients can be maintained and feel can be maintained.
  • plants transport sugar in the form of sucrose, so sucrose is the most natural sugar.
  • disaccharides other than sucrose, monosaccharides, oligosaccharides, and the like can be used similarly, and examples thereof include fructose and glucose.
  • the denaturation inhibitor as used herein can be, for example, a cryoprotectant, a flexibility maintenance agent, a plant browning inhibitor, a chlorophyll degradation inhibitor, or a carotenoid degradation inhibitor.
  • cryoprotectant and the flexibility maintaining agent include glycerin.
  • plant browning inhibitors include EDTA (ethylenediaminetetraacetic acid) used for preventing browning of plant tissue extracts.
  • chlorophyll degradation inhibitor include synthetic cytokinin, ascorbic acid, sodium chloride, sodium bicarbonate, and the like.
  • carotenoid degradation inhibitors examples include substances that inhibit enzymes that degrade pigments such as carotenoids, and examples include sulfites. Plant browning inhibitors, chlorophyll degradation inhibitors, carotenoid degradation inhibitors, etc. can be used in combination. Kept. In the present invention, a plurality of denaturation inhibitors can be used in combination.
  • the concentration of the sugar and the denaturation inhibitor in the aqueous solution can be appropriately determined in consideration of the type of sugar and the denaturation inhibitor, the absorption conditions, and the like, and any of them can be in the range of 0.1 mM to 500 mM.
  • the sugar is preferably used at a relatively high concentration, and the preferred concentration is in the range of 50 mM to 300 mM.
  • EDTA or the like is preferably used at a relatively low concentration, and a preferable concentration is in the range of 0.2 mM to 10 mM.
  • a cryoprotectant and a softness-maintaining agent such as glycerin can be used at a higher concentration, and can be, for example, in the range of 10 to 30%.
  • the temperature at the time of absorption can be a temperature in the range of 0 to 10 ° C., preferably in the range of 0 to 5 ° C.
  • the absorption time is selected in the range of, for example, 6 hours to 120 hours in consideration of the type and state of the plant body, the type of aqueous solution, etc., and considering that the desired dry plant body is obtained. be able to. However, it is not intended to be limited to this range of time.
  • Absorption of an aqueous solution containing a sugar and a denaturation inhibitor can be carried out either in the dark or under illumination (including sunlight), but from the viewpoint of high absorption rate, it is under illumination (including sunlight). Preferably it is done. Alternatively, it is possible to alternately repeat under darkness and under illumination (including under sunlight).
  • step (2) the plant body that has absorbed the aqueous solution in step (1) is maintained at a temperature in the range of ⁇ 10 to ⁇ 20 ° C.
  • plant cells accumulate sugar to avoid intracellular freezing when cold conditions persist. Therefore, vegetables become sweet when severe cold continues.
  • processing in a low temperature state just before freezing is performed.
  • the low temperature state just before freezing is in the range of -10 to -20 ° C.
  • the sugar content absorbed by the plant body is accumulated in the plant cell and forms a special intracellular structure.
  • the vacuum drying in the step (3) the plant being dried becomes low temperature, or even when this vacuum drying is actively carried out at a low temperature, Cells can be maintained without freezing.
  • the temperature in step (2) is preferably in the range of -12 to -18 ° C, more preferably in the range of -14 to -16 ° C.
  • the treatment temperature in step (2) is preferably a low temperature just before freezing.
  • the low temperature just before freezing varies depending on the plant species and pretreatment, but whether the plant has frozen can be identified by observing the cells, and after testing the presence or absence of freezing of the plant in advance, It can also be determined.
  • the treatment time is in the range of 1 to 24 hours in consideration of the type and state of the plant, the type of the absorbed aqueous solution, etc., and considering that the desired dry plant can be obtained. It can be carried out. However, it is not intended to be limited to this range.
  • the low-temperature treatment can be performed in the dark or under illumination (including sunshine). Alternatively, it is possible to alternately repeat under darkness and under illumination (including under sunlight).
  • step (3) the plant obtained in step (2) is vacuum-dried to obtain a dried plant.
  • the vacuum drying in the step (3) is preferably performed at a temperature in the range of ⁇ 10 to ⁇ 20 ° C. from the viewpoint of obtaining a plant body having a desired color, fragrance and feel.
  • the cells Due to the low temperature treatment in the step (2), the cells are in a state that is less likely to freeze than before the treatment. By drying the plant body in such a state under vacuum, it can be dried while avoiding freezing. By drying while avoiding freezing, it is possible to obtain a dried plant body that occupies most of the plant cells and avoids damage to the vacuolar membrane accumulating various degrading enzymes, thereby achieving the desired color.
  • a dried plant body that retains fragrance and feel can be obtained. When lyophilized by a normal method, the intracellular membrane structure is destroyed, and as a result, it becomes difficult to obtain a dried plant body that retains its color, fragrance and feel.
  • the vacuum drying time in step (3) takes into account the type of plant body, the state, the type of aqueous solution absorbed, the low-temperature treatment conditions, etc., and the conditions for obtaining the desired dry plant body. For example, it can be performed in the range of 1 hour to 24 hours. However, it is not intended to be limited to this range.
  • the dried plant body obtained in step (3) is a dried plant body that retains the color, fragrance, and feel of natural fresh flowers and plants, and for a long period of time (for example, 1 to 12 months). And it can continue to hold the touch.
  • the production method of the present invention can further include a step (4) of heat-treating the dried plant obtained in the above step (3).
  • an enzyme for example, an enzyme that decomposes pigments or chlorophyll
  • the heat treatment can be performed at a temperature of 50 to 80 ° C. for 1 minute to 60 minutes, for example.
  • Example 1 Rose leaf pieces were immersed in the solutions (a) to (d) and placed at 4 ° C. for 12 hours.
  • Example 2 Instead of vacuum drying at room temperature in Example 1, vacuum drying at ⁇ 15 ° C. was performed. The shape, color, and feel were compared, and the results are shown in Table 2. Evaluation criteria are the same as in Table 2.
  • Example 2 compared with Example 1, in addition to the gloss, good results were obtained for the shape and color.
  • Example 3 A cut flower of a light pink rose was dipped in the solution of (a) to (c) together with its foliage and absorbed at 10 ° C. for 24 hours.
  • the present invention is useful in the field of production of dried plants in place of conventional dried flowers and preserved flowers.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Plant Pathology (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention porte sur un procédé pour produire un corps de plante séché, lequel procédé comprend les étapes (1) à (3) suivantes : (1) le fait de permettre à un corps de plante d'absorber une solution aqueuse d'un sucre et d'un inhibiteur de modification à une température de 0 à 10°C ; (2) le maintien du corps de plante qui a absorbé la solution aqueuse à une température de -10 à -20°C ; et (3) le séchage du corps de plante résultant sous vide afin de produire le corps de plante séché. Le procédé permet la production d'un produit séché d'un corps de plante (par exemple, une fleur véritable et d'autres plantes) qui peut conserver la couleur, la saveur et le toucher du corps de plante initial dans un état proche de l'état naturel pendant une longue période.
PCT/JP2009/004958 2008-09-29 2009-09-29 Procédé pour produire un corps de plante séché WO2010035506A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010530749A JP5560193B2 (ja) 2008-09-29 2009-09-29 乾燥植物体の製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-250060 2008-09-29
JP2008250060 2008-09-29

Publications (1)

Publication Number Publication Date
WO2010035506A1 true WO2010035506A1 (fr) 2010-04-01

Family

ID=42059517

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/004958 WO2010035506A1 (fr) 2008-09-29 2009-09-29 Procédé pour produire un corps de plante séché

Country Status (2)

Country Link
JP (1) JP5560193B2 (fr)
WO (1) WO2010035506A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4967771A (fr) * 1972-10-30 1974-07-01
JPS5810501A (ja) * 1981-07-10 1983-01-21 Morinaga & Co Ltd ドライフラワ−の製造法
JPS63275502A (ja) * 1987-05-02 1988-11-14 Tetsuo Hayakawa ドライフラワ−の製作方法
JPH01139501A (ja) * 1987-11-25 1989-06-01 Hitachi Ltd ドライフラワ製造装置
JPH0987102A (ja) * 1995-09-27 1997-03-31 Yakult Honsha Co Ltd 植物細胞の凍結保存方法及び解凍方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4957771A (fr) * 1972-10-02 1974-06-05

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4967771A (fr) * 1972-10-30 1974-07-01
JPS5810501A (ja) * 1981-07-10 1983-01-21 Morinaga & Co Ltd ドライフラワ−の製造法
JPS63275502A (ja) * 1987-05-02 1988-11-14 Tetsuo Hayakawa ドライフラワ−の製作方法
JPH01139501A (ja) * 1987-11-25 1989-06-01 Hitachi Ltd ドライフラワ製造装置
JPH0987102A (ja) * 1995-09-27 1997-03-31 Yakult Honsha Co Ltd 植物細胞の凍結保存方法及び解凍方法

Also Published As

Publication number Publication date
JPWO2010035506A1 (ja) 2012-02-23
JP5560193B2 (ja) 2014-07-23

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