JPS61268601A - Method of keeping freshness of flowers, seeds and stocks, and bulb - Google Patents

Abstract

PURPOSE:To prevent invasion of microorganisms and to keep simply freshness of flowers, seeds and stocks, and bulb, by placing hinokitiol in a container having flowers, seeds and stocks, etc. in such a way hinokitiol exists in a vapor state, and storing them in a state having permeability to the outside air. CONSTITUTION:One of more of hinokitiol, its salt and its inclusion compound are impregnated into or attached to a material, which is put in a bag and a container having gas permeability, having flowers, seeds and stocks and/or bulb in such a way that hinokitiol exists in a vapor state so that the flowers, the seeds and stock and/or the bulb are stored in a state having permeability to the outside air. Or the whole or part of the flowers, the seeds and stocks and/or bulb are covered to packaged with a packaging material containing hinokitiol or stored in it in a state having permeability to the outside air. EFFECT:Usable for transporting cut flowers, preventing withering of seeds and stocks, corsage, and flower design, transporting and preserving bulb, preventing contamination by microorganisms, etc.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for maintaining the freshness of flowers such as cut flowers, koshers, and flower designs, seeds, and bulbs. It can be widely used for preventing wilting of flower designs, transporting and preserving bulbs, and preventing contamination by microorganisms.

[Conventional technology]

Conventionally, flowers have been treated with antibiotic preparations, silver preparations, sulfur preparations, etc. to maintain their freshness, and in particular, the use of silver preparations has been the mainstream. In all of these methods, flowers are immersed in an aqueous solution of the drug, and it is troublesome to adjust the concentration to be effective and not cause harmful effects. Furthermore, with the mainstream silver preparations, disposal after use may cause pollution problems. In addition, good medicines were sometimes used for seeds, seedlings, and bulbs, but this was not considered to be good for the hygiene of the handlers.

As described above, conventional treatment methods have involved immersing flowers, seeds, or bulbs in a chemical solution, and no method has been used to maintain freshness without immersing them in a chemical solution.

[Problem that the invention seeks to solve]

Recently, cut flowers are not only produced domestically but also imported in large quantities from foreign countries such as New Sealant and the Netherlands, and maintaining freshness during transportation has become a problem. Currently, the main method used is to immerse the cut flower in a silver solution before transporting it, but the cut flower itself absorbs a large amount of silver compounds, which are heavy metals, and this poses health and hygiene problems when disposed of. There is.

Due to their nature, seedlings and bulbs are stored for a long period of time, and during this time they may be damaged by microbial attack, making it impossible for them to grow normally later.

Therefore, there has been a strong desire for an effective means for maintaining the freshness of these products in a simple and hygienic manner.

[Means for solving problems]

As a result of intensive research based on the above request, the present inventors have found that by contacting flowers, seeds, and bulbs with hinokitiol in a vapor state, they can maintain freshness and prevent microbial invasion of scales. They discovered this and completed the present invention.

That is, the method of the present invention is characterized in that it maintains the freshness of flowers such as cut flowers, koshers, flower designs, seedlings, or bulbs, and prevents invasion by microorganisms.
One or more of hinokitiol, salts of ultra-tsukithiol, and their clathrate compounds are arranged in a storage body containing seeds and/or bulbs in such a way that hinokitiol can exist in vapor form, allowing ventilation with the outside air. or in a packaging material containing one or more of hinokitiol, hinokitiol salts, and their clathrates in a state where all or part of the flowers, seedlings, and/or bulbs can be vented to the outside air. To cover, wrap, or contain.

In the former method, there are no particular limitations on the shape, material, etc. of the container, other than the requirement that the items stored in the container can come into contact with the outside air, and ordinary storage containers such as metal, plastic, and paper can be used. All possible materials can be used. Regarding contact between the stored items and the outside air, if one side of the stored items is open, for example, if there is no lid, ventilation holes are not particularly required. It is preferable that the storage body itself has ventilation holes. In order to make hinokitiol exist in vapor form in the container, for example, hinokitiol, salts of hinokitiol such as sodium salts and potassium salts, cyclodextrin clathrate compounds of hinokitiol (α-1β-
and/or T-cyclodextrin clathrate)
The purpose is achieved by suspending or dissolving the solution or suspension in an organic solvent or water and attaching it to the inner surface of the container by a conventional method such as coating or spraying. Cloth, non-woven fabric, cellophane, pulp, plastic film, plastic plate, wood piece, metal plate, synthetic resin floor, etc., by dipping, coating, spraying, etc. Impregnated or adsorbed and dried, or solid hinokitiol itself is preferably made of a bag or box-shaped container made of gas-permeable cloth, Japanese paper, nonwoven fabric, perforated polyethylene, etc., or made of metal, synthetic resin, etc. The perforated box-like container can be placed in the storage body.

Alternatively, the container itself may have a double-walled structure, the inner side may be made of the gas-permeable material or porous material, and the impregnated or adsorbent material such as hinokitiol may be inserted in the middle of the double-walled structure. sell.

As the packaging material in the second method of the present invention, among the materials impregnated with or adsorbed with hinokitiol, salts of hinokitiol, or clathrates thereof, materials suitable for packaging such as paper, cloth, nonwoven fabric, cellophane, etc. , pulp, plastic film, etc. are used. When wrapping flowers, it is not necessary to cover the entire area, and a sufficient effect can be obtained by wrapping only a portion, for example, a few centimeters from the cut end. When covering and packaging the entire package, consideration must be given to contact between the outside air and the packaged item by selecting a material with good air permeability or using a perforated packaging material.

〔Example〕

Next, the method of the present invention will be explained in more detail with reference to Reference Examples and Examples, but the present invention is not limited thereto.

Reference Example Production method of cyclodextrin clathrate compound of hinokitiol β-cyclodextrin (Celdex N).

Made by Nihon Shokuhin Kako ■) 1521.0■ (1,3X 10
-3 mol) was dissolved in 80 ml of water with stirring, 219.8 ml of hinokitiol (1.3 x 10 mol) was added, heated to about 60°C and stirred to obtain a homogeneous suspension.

After leaving this mixture in a refrigerator at 5°C for 48 hours, -
The mixture was mixed into 400 bottles of acetone at 35°C with stirring.

The liquid temperature rose to about -28°C. Immediately, the precipitate was separated and collected by filtration under reduced pressure and dried under reduced pressure in a vacuum desiccator for 1 hour. The obtained dried clathrate compound was powdered using Milk Lin, dissolved in water, and hinokitiol in the clathrate compound was measured by ultraviolet absorption (245nrn).The molar ratio was approximately 1:
1 (1:Q, 94) clathrate compound was obtained. Yield: 1568.5 Da (Hinokitiol 0.1201 in 1 Da)
n9-containing).

Example 1 Preservation of carnations 50 carnations (red, pink, yellow mixture) collected in Tateyama City, Chiba Prefecture were stored in a cardboard box, 1 g of hinokitiol was placed in a bleached cotton bag (2 x 2 cm),
After pasting it on the inside of the box lid with Sellotape and sealing the box lid with packing tape, holes of 2×10 cIL were made on both sides of the box.

As a control, 50 carnations were stored in the same type of corrugated pole box, the box lid was sealed with duct tape, and two
I made a hole of X1Gcm.

Both were transported to a research institute in Itabashi-ku, Tokyo, and kept at room temperature (14
When carnations were taken out from each box after being left for one week at (~24℃), all 50 of the control carnations had withered flowers and leaves, and the condition did not improve even after landing, whereas hinokitiol did not improve the condition. The carnations stored in the multi-pole boxes were in a more advanced state of flowering than when they were collected, but all 50 were bright and by landing them,
I was able to watch it for nine days.

Example 2 Stock Preservation 10 g of hinokitiol/β-dextrin clathrate compound was dissolved in 10 J of 35°C warm water. Ten sheets of 60cILX6G tan cellophane (manufactured by Fukui Chemical Industry Co., Ltd., +5O) were immersed in the above solution for 5 to 6 seconds, then mangled to remove adhering water, and further dried on a hot plate at 110° C. for 10 seconds. The amount of hinokitiol contained in this cellophane was determined to be 14/WL2 by ultraviolet absorption measurement, and the amount of hinokitiol was uniformly contained in the entire cellophane.

Ten stocks collected in Tateyama City, Chiba Prefecture were wrapped in cellophane containing the hinokitiol clathrate compound from the cut end up to 100 IL and fixed with rubber bands.

As a control, 10 bottles of stock similarly wrapped in untreated cellophane were used.

Both were transported to a research institute in Itabashi Ward, Tokyo, and kept at room temperature (14
~24°C).

While all of the control flowers withered and fell within 5 days, the flowers wrapped in cellophane containing hinokitiol clathrate showed only 1 flower.
It flowered for 2 days and did not wilt.

Example 3 Preservation of Pansy Seedlings A commercially available polyethylene sheet was cut into a size of 20cWLX25c+a, and on one side thereof, an aqueous solution of hinokitiol sodium salt (100ppM) was applied with a brush and dried with warm air at 50°C.

20 pansy seedlings (Rheingold) with a small amount of soil attached to the roots collected in Konosu City, Saitama Prefecture, were grown in 20 x 25 x 12 c.
The container was placed in a wooden box with a polyethylene sheet coated with the sodium hinokitiol on top, with the coated side facing down. On top of that, a cardboard board was placed so that it was supported by the four edges of the top of the wooden box.

As a control, 20 pansy seedlings were used, and everything was stored in a wooden box in the same manner as above except that an untreated polyethylene sheet was used.

After both were left at room temperature (10 to 24° C.) for one month, each seedling was taken out and cultivated in the original soil.

When polyethylene sheets treated with hinokitiol were used, 16 out of 20 pansy plants bloomed, whereas in the control plot using untreated sheets, only 4 plants bloomed.

Example 4 Preservation of Pansy Seeds Two groups of 50 pansy seeds each were prepared. Hinokitiol 1. ! Washi paper was immersed for 5 seconds in a solution of No. 7 dissolved in warm water 11 at 35° C., the Japanese paper was squeezed to dehydrate it, and then air-dried with warm air at 50° C. to make a bag of 1 GCIIL x 10 CIK. A treated group in which a group of the Panji seeds is stored therein),
The other group was housed in the same type of bag made of untreated Japanese paper (control group).

Both were stored in the dark for one year. Of these, 11 months were stored at room temperature, and 1 month was stored in a refrigerator at 5°C. treatment group,
For the control group, soil was placed in a No. 4 pot separately and placed in a plastic tank filled with water. 50 each for both groups on the soil
Seeds of granular size were sown evenly, and a thin layer of plant ash was sprinkled on top.

When the seeds were placed at room temperature (22-28° C.) and observed for two weeks, 23 out of 50 seeds in the treated group germinated, but none of the seeds in the control group germinated.

Example 5 Preservation of Gladiolus Bulbs Hinokitiol 11 was dispersed and dissolved in warm water 11 at 60°C, and two sheets of 20cIILX20α corrugated paperboard were immersed therein and then air-dried at 50°C. 27cIILX 22cm
Place one sheet of the above paperboard on the bottom of a x5cm+ cardboard box,
Five gladiolus bulbs were placed on top of it, and the remaining piece of treated paperboard was placed on top and sealed with gum tape.

A hole of 2 cm x 5 am was made on both sides of the cardboard box, and the box was left in a humid place at room temperature (treatment area). As a control, five gladioli bulbs were placed in a cardboard box in exactly the same manner except that untreated cardboard was used instead of the hinokitiol-treated paperboard, and left in the same location as above (control ). When we observed the bulbs after being left for 6 months, we found that all 5 bulbs in the treated area had smooth skin and firm heads, whereas all 5 bulbs in the control area had smooth skin and firm heads. His skin was rough, and two of them had clear lesions.

〔Effect of the invention〕

As described above, the present invention extremely easily preserves flowers, seeds, and bulbs for a long period of time by storing them in an environment where hinokitiol exists in a vapor state under conditions where they can fully contact the outside air. The effect of maintaining freshness over a period of time can be obtained.

Claims (1)

[Claims] 1. One or more of hinokitiol, salts of hinokitiol, and clathrates thereof may be present in vapor form in a container containing flowers, seeds, and/or bulbs. A method for preserving the freshness of flowers, seeds, and bulbs, which is characterized by arranging them so that they can be exposed to the outside air and storing them in a condition that allows ventilation. 2. The method according to claim 1, wherein the article impregnated with or adhered to hinokitiol, a salt of hinokitiol, or a clathrate thereof is placed in a gas-permeable bag or container and placed in a container. 3. Covering, packaging, or covering all or part of flowers, seedlings, and/or bulbs in a state that allows ventilation with the outside air with packaging material containing one or more of hinokitiol, salts of hinokitiol, and their clathrates. A method for keeping flowers, seeds, and bulbs fresh by storing them.