JPS606921B2 - cut flower preservative - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel preservative for preserving the lifespan of cut flowers, flower arrangements, and branches of flowering trees in a beautiful and vivid manner for a longer period of time than conventional agents.

More specifically, cut flowers and flower arrangements containing 2-pyridinethiol-1-oxide represented by the following formula or salts thereof (alkali metal salts, alkali metal salts), aliphatic carboxylic acids, and sugars We provide a preservative for branches of flowering trees (hereinafter, unless otherwise specified, these will be collectively referred to as cut flowers). 2-Pyridinethiol 1-Oxide If cut flowers, flower arrangements, or flowering tree branches are left in water for a few days to a week, the flowers may change color or wilt, which can shorten the lifespan of the flowers. It will shrink.

The reason for this is thought to be that bacteria generated in the water rot the cut end and reduce the water absorption function of the conduit. Conventional methods for prolonging the lifespan of cut flowers include frequently replacing the water, cutting under water to increase the yield of cut flowers, crushing the cut ends, baking, and boiling, and using plant hormones. For example, kinetin [Science (Sci Hada e) No. 125]
, 6-N-Benzoylaminopurine [Plant & Cell Physiology (Plant & CellP)
h$iology) Volume 7 (1966) No. 705-7
Various methods have been tried, including adding transpiration inhibitors such as 06 pages], covering the fins with transpiration inhibitors to reduce the amount of water evaporating from the leaf surface, and adding preservatives to prevent spoilage and turbidity of irrigation water. There is.

Examples of using preservatives include a method of adding sugars to acidic sodium sulfite or ammonia alum alone or in combination (Special Publication No. 223 of Shobara Ichi);
6-(N-penzyl)aminopurine or 6-(N-furfuryl)aminopurine and thiuram agents, organic mercurial agents,
A method for cleaning cut flowers in water with a certain amount of antibiotic dissolved in them (Japanese Patent Publication No. 45-16054), potassium hydrogen sulfate, potassium hydrogen phthalate, a type of polymeric phosphate that is acidic when made into an aqueous solution, and rice bran. A mixture of one or more of the following preservatives (Samurai Publication No. 47-12336y), tetramethylpyrazine, preservatives, and fertilizers,
or those using its aqueous solution (Special Publication Publication No. 44-126
91), di- or tribasic organic aliphatic carboxylic acids and their alkali salts, bran, and preservatives such as methylene bisthiocyanate and lauryl monomethylbenzylammonium chloride, and when made into an aqueous solution, baits 3 to 6. (Samurai Kosho 5711)
0 female No. 1 Publication), those containing chlorcholine salts, citric acid, silver salts, and salts of N-nitroso-N-cyclohexylhydroxylamine (Hakama-Seki Sho No. 47-23244 Publication), glucose, potassium aluminum sulfate, sodium aluminum sulfate, etc. Containing (Tokukan Sho 48)
-18653 Publication), saccharide "Cation activator, ammonium alum, monopotassium phosphate and citric acid as main components, containing formalin if necessary (Special Publication No. 50-li853), general formula (Definitions of M and R are omitted) or those using their salts as preservatives (JP-A-56
-53601 Publication), 8-oxyquinoline, organic carboxylic acids (citric acid, etc.) and pulps, 'Agriculture and Horticulture', Vol. 50, No. 4 (1975), No. 13-
Page 16 “Summary of the 1964 Sheep Autumn Symposium of the Horticultural Society”
Pages 123-129: ``Maintaining the freshness of cut flowers'' by the Floriculture Committee.

It is already known that adding sugars as a nutritional source can extend the lifespan of flowers. In addition, flower life-extending agents are already available under the product names of ``Repeat J (trade name, manufactured by Taisho Pharmaceutical Co., Ltd.), ``Ikiki'' (trade name, manufactured by Johnson Co., Ltd.), and ``Hana no Seiichi (trade name, manufactured by Palace Chemical Co., Ltd.). However, these methods are not necessarily satisfactory.In other words, simply replacing the water frequently has little effect on extending the lifespan of flowers, and is complicated. In addition, methods such as cutting flowers underwater, crushing the cut ends, baking, and boiling them are difficult and complicated to process large quantities of flowers.Furthermore, they do not have the effect of prolonging the life of the flowers. How to add preservatives
Some commercially available products have a certain degree of life-extending effect, but they are generally insufficient, and some products cause problems such as cloudy water, rot, discolored flowers, wilted flowers, and distorted flowers. The present inventors have discovered that cut flowers, flower arrangements, flowering tree branches, etc. can stay fresh for a longer period of time than conventional ones.
Crab flowers also bloom one after another, and we investigated various ways to preserve them for long periods as cut flowers and flower arrangements. As a result, the present invention was completed.
In other words, by using 2-pyridinethiol-1-oxide as the main component of the preservative and adding aliphatic carboxylic acids and sugars to it, the preservative can be preserved for a much longer period of time than with conventional methods or preservatives. He saved cut flowers and discovered scales. The cut flower preservative of the present invention will be explained in more detail as follows.

First, in order to produce the preservative of the present invention, 2-pyridinethiol-1-oxide, aliphatic carboxylic acid, and bran, which are used as the main components of the preservative, are mixed in a ratio of approximately 1:1 to 5 in a ratio of 100 to 500 They can be mixed at the same ratio, or they can be diluted to a concentration that can be used as is. , during actual use, add 10 to 1 part of this to water.
0 (usually at the level of 5: the concentration of the main preservative component is 10~
It is convenient to use it after diluting it to about 40 degrees.

The 2-pyridinethiol-1-oxide used is already known as a preservative and rutting agent, and is used in various industrial fields.
Its sodium salt and zinc salt (complex salt) are widely used as anti-dandruff agents for hair. In the present invention, these sodium salts and zinc salts are effectively used, but other potassium salts, magnesium salts, barium salts, calcium salts, etc. may also be used. Also, during actual use,
When the zinc salt is added with an aliphatic carboxylic acid, the equilibrium is advanced to 2-pyridinethiol-1-oxide, and at pH 4 it becomes acidic 2-pyridinethiol-1-oxide and dissolves in water. Moreover, the sodium salt is in an equilibrium relationship with the acid form of 2-pyridinethiol-1-oxide on the acidic side. Therefore, substantially both acid type 2-pyridinethiol-1-oxide and its salts can be effectively used. These 2
-When using pyridinethiol-1-oxide, an aqueous solution containing blood with a concentration of 10 to 40, preferably 40 to 10, exhibits high antibacterial activity against a wide range of molds and bacteria, and has a long-lasting effect on water spoilage. can be prevented over a period of time. This antibacterial activity is found to be stronger in acidic regions than in neutral or alkaline regions.

In this case, it is preferable to add an aliphatic carboxylic acid to adjust the spots to the acidic side. Suitable examples thereof include citric acid, succinic acid, malonic acid, maleic acid, fumaric acid, malic acid, tartaric acid, etc., and when diluted in water, the concentration ranges from 0.01 to 0.5%. It is preferable to add sugars as a nutritional source, such as glucose, sucrose, and fructose, so that when diluted in water, the concentration is preferably 0.
What is necessary is just to add it so that it may become 5-2%. In this way, 2
-Pyridinethiol-1-oxide, aliphatic carboxylic acid, and saccharide are diluted in water and cut flowers are placed in a solution to achieve the intended life-extending effect of the present invention.

In the present invention, examples of the types of flowers from which the effect of extending the life of cut flowers can be obtained include roses, carnations, gerberas, lisianthus, chrysanthemums, dahlias, iris, sweet peas, lilacs, stock, lily pads, freesias, calendula, and snapdragons.

In addition, masaki, yukiyanagi L poke, dogwood, flower peach, forsythia, etc. can also be used effectively. Also, various varieties of these flowers are widely effective, such as roses such as Superstar and Sonia, and carnations such as Nora and Caufl. Therefore, the use of the present invention is not limited to only particular types of flowers or varieties. In addition, as shown in the examples, the cut flower preservative of the present invention lasts 1.5 to 5 times longer than conventional methods and commercially available cut flower preservatives.
There is no evidence of water spoilage, and the flowers absorb a large amount of water, allowing them to remain beautiful and fresh for a long time.

The cut flower preservative of the present invention is colorless, transparent and odorless when diluted with water, and is harmless to many flowers, humans and livestock.

Therefore, it can be safely used in places where flowers are arranged, such as ordinary homes, hotels, inns, conference rooms, halls, offices, etc., or in places where cut flowers are handled in large quantities, such as flower growers and flower shops. Next, the present invention will be specifically described with reference to Examples, but the present invention should not be limited only to the following Examples.

Example 1 The flowers tested were roses (Superstar and Sonia),
These are carnations (nolas and corals), gerberas, and lisianthus.

In a room of 17 to 2,800 yen, an aqueous solution with the following composition, a commercially available preservative (comparative example), and tap water (with and without daily water exchange) were placed in glass containers each containing 500 ml of water.
5 roses, 5 carnations, 5 gerberas, and IZ flowers were placed in separate containers, and the number of healthy flowers after a number of days and the degree of cloudiness of the water on the last survey day were investigated using the following criteria, and the amount of water absorbed was also measured. The ratio was determined by setting the case where tap water (not replaced) was used as 100.

1) Test agent and its composition 2 Criteria for investigating the degree of cloudiness in water -: None Soil: Slight (white cloudiness is observed when shaken) 10: Slight (slightly cloudy in static layer condition) ) tithe (is clearly 〃 ) The results are shown in Tables 1 to 6.

Table 1 (Rose: Suehasta) Note 1) The test agents were diluted 50 times with water and used, except for tap water.

This is also the case in the table below. Note 2) In the comparative example, an aqueous solution containing 8-oxyquinoline (0.4%), citric acid (2.0%), and sugar syrup (40.0%) was diluted 50 times and used.

Table 2 (Rose: Sonia) Table 3 (Carnation: Nora) Table 4 (Carnation: Coral) Table 5 (Gerbera) Table 6 (Gerbera)

Claims (1)

[Claims] 1. A cut flower preservative containing 2-pyridinethiol-1-oxide or a salt thereof, an aliphatic carboxylic acid, and a saccharide.