JP2001181103A - Freshness-retaining agent for plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a freshness-retaining agent for plants such as harvested plants, capable of exerting freshness-retaining effect for several plants regardless of kinds of the harvested plants and having high safety. SOLUTION: This freshness-retaining agent is obtained by including a phytohormone (a) and one or more kinds of saccharide (b) selected from the group consisting of monosaccharides, oligosaccharide and polysaccharides.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a plant freshness preserving agent for cut flowers, vegetables and the like.

[0002]

2. Description of the Related Art Conventionally, methods for extending the life of cut flowers and maintaining freshness include a method of draining in fresh water,
Crushing or baking cuts to improve watering, adding nutrients such as sugars to water, preservatives and fungicides to prevent the growth of bacteria and mold, substances leaking from plants, metabolism due to the generation of bacteria Various methods and methods have been devised, such as a method of adding colloidal particles such as aluminum sulfate and a chemical agent such as silver thiosulfate which suppresses the biosynthesis of ethylene, for the purpose of aggregating colloidal particles such as substances. Various cut flower life-promoting agents are commercially available.

[0003]

However, in the above-mentioned known methods, a sufficient effect of maintaining freshness of cut flowers and vegetables cannot be obtained, and the types of cut flowers and vegetables exhibiting the effect are limited, or the usage is limited. It has various problems, such as being complicated and having concerns about the safety of the environment and humans.

[0004] In view of the above problems, the present invention provides an agent for preserving freshness of cut flowers and vegetables which exhibits a freshness preserving effect and is highly safe irrespective of the type of cut flowers and vegetables. The purpose is to:

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a plant freshness maintenance containing a plant hormone (a) and one or more saccharides (b) selected from the group consisting of monosaccharides, oligosaccharides and polysaccharides. Agent.

The plant freshness preserving agent of the present invention is suitable for collected plants. Examples of collected plants include cut flowers, vegetables, cut leaves, and flowers and trees. The plant freshness-preserving agent of the present invention is suitably used for maintaining freshness of cut flowers and vegetables. In addition, a plant that has not been collected, for example, a rooted plant, is kept fresh by the plant freshness retaining agent of the present invention.

[0007]

DETAILED DESCRIPTION OF THE INVENTION The plant hormone (a) used in the present invention includes IAA (indole-3-acetic acid),
2,4-dichlorophenoxyacetic acid (2,4-D), 2,
Natural or synthetic auxins such as 6-dichlorobenzoic acid and naphthalene acetic acid, natural or synthetic cytokinins such as zeatin, kinetin, 4-benzylaminobenzimidazole and benzyladenine, gibberellins, abscisic acids, brassinolide, castasterone, etc. And other brassinosteroids.

[0008] The saccharide (b) used in the present invention includes:
It is not limited as long as it is a saccharide serving as a nutrient or energy source of cut flowers and vegetables, for example, glucose, xylose, arabinose, ribose, galactose, fructose, mannose, rhamnose, inositol, sorbitol, mannitol, xylitol, glycerol,
Erythritol, glucosamine, monosaccharides such as galactosamine, sucrose, trehalose, trehalulose, maltose, cellobiose, palatinose, lactose,
Raffinose, cyclodextrin, xylooligosaccharide,
Oligosaccharides such as fructooligosaccharides, galactooligosaccharides, maltooligosaccharides, inulooligosaccharides, and nectar oligosaccharides, and polysaccharides such as agarose, amylose, glycogen, cellulose, dextrin, inulin, mannan, chitin, and the like. One or more of these saccharides are blended in the plant freshness-preserving agent, but preferably two or more are blended.

In the present invention, the weight ratio of the plant hormone (a) to the saccharide (b) is (a) / (b) = 0.000001 to 1
, Preferably 0.000001 to 0.1, and more preferably 0.00001 to 0.01.

The plant freshness preserving agent of the present invention comprises a plant hormone (a) and a saccharide (b) and a colloid coagulant / precipitant (c).
Is preferable. Colloidal coagulating sedimentation agent (c)
As for the purpose of aggregating colloid particles such as substances leaking from plants and metabolites generated by bacteria, aluminum sulfate, potassium aluminum sulfate, sodium aluminate, polyaluminum chloride, ammonium alum,
Aluminum compounds such as aluminum lactate and aluminum silicate, calcium chloride, a combination of calcium chloride and phosphoric acid, and polymer aggregates include dimethylaminoethyl methacrylate neutralized salt, polyacrylamide Mannich reaction product, and polyacrylamide Hoffman It is also possible to mix a rearrangement reactant, an alkylamine / epichlorohydrin condensate, polyvinylamine, chitosan, or the like. The colloid coagulating sedimentation agent (c) is preferably used in a weight ratio of (c) / (b) = 0.0001 to 100, particularly 0.001 to 1, with respect to the saccharide (b).

The plant freshness preserving agent of the present invention may contain one or more surfactants (d) other than sugars. The following are examples of the surfactant (d) other than the sugar system used in the present invention.

Examples of the nonionic surfactant include polyoxyalkylene fatty acid ester, resin acid ester, polyoxyalkylene resin acid ester, polyoxyalkylene alkyl ether, polyoxyalkylene alkyl phenyl ether, and silicone-based surfactant. Can be

Examples of the anionic surfactant include carboxylic acid-based, sulfonic acid-based, sulfate ester-based and phosphate ester-based surfactants.

Examples of the carboxylic acid surfactant include fatty acids having 6 to 30 carbon atoms or salts thereof, polyvalent carboxylic acids or salts thereof, polyoxyalkylene alkyl ether carboxylic acids or salts thereof, and polyoxyalkylene alkyl amide ether carboxylic acids. Examples thereof include acids or salts thereof, rosin acids or salts thereof, dimer acids or salts thereof, polymer acids or salts thereof, and tall oil fatty acids or salts thereof.

Examples of the sulfonic acid surfactant include alkylbenzenesulfonic acid or a salt thereof, alkylsulfonic acid or a salt thereof, alkylnaphthalenesulfonic acid or a salt thereof, naphthalenesulfonic acid or a salt thereof, diphenylethersulfonic acid or a salt thereof, and alkyl. A condensate of naphthalenesulfonic acid or a salt thereof, a condensate of naphthalenesulfonic acid or a salt thereof, and the like are given.

Examples of the sulfate-based surfactant include alkyl sulfates or salts thereof, polyoxyalkylene alkyl sulfates or salts thereof, polyoxyalkylene alkyl phenyl ether sulfates or salts thereof, and tristyrenated phenol sulfates or salts thereof. And polyoxyalkylene distyrenated phenol sulfate or a salt thereof.

Examples of the phosphate-based surfactant include alkyl phosphates or salts thereof, alkylphenyl phosphates or salts thereof, polyoxyalkylene alkyl phosphates or salts thereof, polyoxyalkylene alkylphenyl phosphates and the like. And salts thereof.

As salts of these compounds, for example, metal salts (Na, K, Ca, Mg, Zn, etc.), ammonium salts,
Examples thereof include alkanolamine salts and aliphatic amine salts.

Examples of the amphoteric surfactant include amino acids, betaines, imidazolines, and amine oxides.

Examples of the amino acid system include acyl amino acid salts, acyl sarcosine salts, acyloylmethylaminopropionates, alkylaminopropionates, and acylamidoethylhydroxyethylmethylcarboxylates.

Examples of the betaine include alkyl dimethyl betaine, alkyl hydroxyethyl betaine, acylamidopropyl hydroxypropyl ammonia sulfobetaine, acylamidopropyl hydroxypropyl ammonia sulfobetaine, amide dimethyl carboxymethyl ammonia betaine ricinoleate and the like.

Examples of the imidazoline type include alkyl carboxymethyl hydroxyethyl imidazolinium betaine and alkyl ethoxy carboxymethyl imidazolium betaine.

Examples of the amine oxide include alkyldimethylamine oxide, alkyldiethanolamine oxide, alkylamidopropylamine oxide and the like.

The plant freshness preserving agent of the present invention has a sufficient freshness preserving effect by blending a plant hormone (a), a saccharide (b), a colloid coagulating sedimentation agent (c) and a surfactant (d). Although it is obtained, a component applied to a known method for maintaining freshness of cut flowers and vegetables or an agent having a life-span effect, for example, a bactericide, an antioxidant, and the like can be added as necessary.

For example, one or more fungicides or preservatives having a bactericidal or antibacterial action can be incorporated. Specifically, sodium hypochlorite, copper sulfate, 8-hydroxyquinoline, ethanol, isopropanol, methyl (or ethyl, propyl, butyl) parahydroxybenzoate, proxel (trade name, Nagase Kasei), bronopol (trade name) ,
Nagase Sangyo), cationic surfactants and the like. Examples of the cationic surfactant include alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, benzalkonium chloride, and polyoxyethylene monoalkylmonomethylammonium chloride.

AVG has a function of inhibiting the production or action of ethylene and prevents aging of plants.
(Aminoethoxyvinyl glycine), AOA (aminooxyacetic acid hemihydrochloride), PACME (isopropylidine-aminooxyacetic acid-2-methoxy-2-oxoethyl ester), STS (silver thiosulfato complex), AIB
(Aminoisobutyric acid), DPSS (1,1-dimethyl-4)
-(Phenylsulfonyl) semicarbazide), PPOH
(Cispropenylphosphonic acid), STB (sodium tetraborate), allocoronaminic acid, aminotriazole, phenanthroline, DACP (diazocyclopentadiene), AITC (allyl isothiocyanate), NBD
(2,5-norbornadiene), MCP (1-methylcyclopropene), ethionine and the like.

Further, amino acids and inorganic nutrients which can be a nutrient source of plants may be added.

The plant freshness preserving agent of the present invention comprises a plant hormone (a) and a saccharide (b), a colloid coagulating sedimentation agent (c),
Powder preparations and granular preparations, tablets and effervescent tablets containing surfactants (d) other than sugars, bactericides, anti-aging agents, etc., highly concentrated forms containing active ingredients at a concentration several tens times higher than when used It can be an aqueous preparation, a low-concentration aqueous preparation containing an active ingredient at a concentration several times lower than when used, or an aqueous liquid preparation to be used as it is.

When these formulations are used by mixing with water,
When used, the concentration of plant hormone (a) is 0.000001-
It is preferable to mix the saccharide (b) so as to be 0.1% by weight and 0.05 to 10% by weight. Further, it is preferable to mix the colloid coagulating sedimentation agent (c) so that the concentration at the time of use is 0.0001 to 0.5% by weight. The surfactant (d) other than the sugar-based surfactant has a concentration in use of 0.00001 to 1% by weight, particularly
It is preferable to mix them so as to be 0.0001 to 0.5% by weight. The antioxidant has a concentration of 0.0001 to 0.5 when used.
% By weight and the fungicide are preferably blended so that the concentration at the time of use is 0.0001 to 5% by weight.

It is also effective to add the plant freshness preserving agent of the present invention to conventionally used commercially available plant freshness preserving agents and life-extending agents. As the addition method, the plant freshness preserving agent of the present invention can be added in the form of an aqueous solution or a powder.

The method of using the plant freshness preserving agent of the present invention includes a method of immersing a cut portion (cut portion) or the whole cut flowers or vegetables in the aqueous solution of the plant freshness preserving agent of the present invention, By spraying the plant freshness preserving agent aqueous solution of the present invention on a nonwoven fabric, fiber, paper product, foam such as urethane or phenolic resin, cotton, or a suitable absorbent such as a water-absorbing polymer. There are methods of wrapping or piercing vegetables and vegetables.

The cut flowers and vegetables to which the plant freshness-preserving agent of the present invention can be applied are not limited, and cut flowers such as roses, carnations, lilies, orchids, gypsophila, eustoma, gerberas, chrysanthemums, solid dusters,
Sakura, peach, maki, alstroemeria, hydrangea, delphinium, statice, stock and the like. Examples of vegetables include leafy vegetables such as Chinese cabbage, cabbage, spinach, lettuce, komatsuna, and shungiku, fruit vegetables such as cucumber, tomato, eggplant, pepper, and strawberry, and root vegetables such as radish, burdock, and carrot.

[0033]

EXAMPLES <Preparation of Plant Freshness Preserving Agent> Freshness preserving agents having the compositions shown in Tables 1 to 3 were prepared (products of the present invention 1 to 39 and comparative products 1 to 25). The balance in Tables 1-3 is water.

<Test for maintaining freshness of cut flowers> Products 1 to 3 of the present invention
9 and comparative products 1 to 25, using commercially available cut flowers [chrysanthemum (cultivar: Benjigi), carnation (cultivar: Juliet), rose (cultivar Valerie)] for each of them
Was tested for freshness. Cut flowers whose growth state and freshness state were the same were selected as much as possible, and the stems were cut with sharp scissors in water before use. Growth conditions are freshness preservative 20
Cut flowers into 0ml, temperature 23 ℃, humidity 60, illuminance 5
The test was performed under the condition of 000lux. The freshness retention was evaluated by visual observation, and the number of days from the state of petal withering, the occurrence of vent neck, the state of stem and leaf withering, etc., to the point at which it could not withstand ornamentation was taken as the number of days to keep. The results are shown in Tables 1 to 3, and the product of the present invention was compared with the comparative product in all test systems.
The shelf life effect of the flower was confirmed, and the sugar and plant hormones, as well as the colloid coagulating sedimentation agent, were confirmed to have a freshness maintaining effect.

[0035]

[Table 1]

[0036]

[Table 2]

[0037]

[Table 3]

[0038]

According to the present invention, the present invention exerts an excellent freshness preserving effect on various collected plants and is highly safe.
A freshness maintaining agent for plants such as harvested plants is obtained.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) A23B 7/153 A23B 7/156 F-term (Reference) 4B069 HA01 KA10 KB01 KB03 KC11 KC17 KC29 4H011 BB06 BB08 BB19 BB21 BC06 BC18 BC19 CA03 CA04 CB10 CB11 CD03 DH03 DH10

Claims (5)

[Claims] 1. A freshness preserving agent for plants containing a plant hormone (a) and one or more saccharides (b) selected from the group consisting of monosaccharides, oligosaccharides and polysaccharides. 2. The plant hormone (a) is a gibberellin,
The freshness preserving agent for plants according to claim 1, which is at least one member selected from the group consisting of auxins, cytokinins, abscisic acids, and brassinostearoids. 3. The method according to claim 1, wherein the weight ratio (a) / (b) of the plant hormone (a) to the saccharide (b) is 0.000001 to 1.
The plant freshness preservative according to the above. 4. The plant freshness preserving agent according to claim 1, further comprising a colloid coagulating sedimentation agent (c). 5. The plant freshness-preserving agent according to claim 1, further comprising a surfactant (d) other than a sugar-based surfactant.