JPS6197201A - Preservative for cut flower - Google Patents

Abstract

PURPOSE:To provide a preservative for cut flower, capable of keeping the natural color of flower and vitality of leaf and stalk, by oxidizing an acidic sulfate soil sufficiently with air and using the resultant water-extract liquid as an active component. CONSTITUTION:A acidic sulfate soil is left to stand at room temperature for e.g. 10 days, preferably for >=10 days, stirred sufficiently for 5-60min thereby contacting with air and effecting the oxidation with air, dried, and pulverized. The obtained powder is extracted with water, and the extracted liquid is used as an active component of the objective preservative for cut flower. It can be produced without using particular process. Cut flowers can be maintained for a long period keeping natural state.

Description

[Detailed description of the invention] : The present invention relates to a cut flower preservative.

More specifically, the present invention provides sufficient air oxidation
The present invention relates to a cut flower preservative containing as an active ingredient an extract obtained by extracting nonacidic sulfate soil with water.

(Acidic sulfate soil is soil that, after oxidation has progressed after drying, becomes or has become so acidic that it interferes with crop growth.The main cause of acidity is soil that is due to oxidation of sulfides. There is an amount of sulfide found within 1,000 degrees below the surface that, when oxidized, makes the soil acidic to pH 5.5 or less, and (or) conventional preservation of cut flowers, fresh flowers, etc. (hereinafter referred to as cut flowers). The method is to change the water frequently,
Crush the cut. A number of methods have been used, including methods such as baking or boiling, and adding plant hormones or preservatives to the water.

For example, methods published in patent-related publications include a method of adding sugars to mourning products by using acidic sodium sulfite or ammonia alum alone or in combination (Japanese Patent Publication No. 5B-22358), A method in which one or more of methylpyrazine, preservatives, and fertilizers are mixed and an aqueous solution thereof is used (Japanese Patent Publication No. 12691/1983), 2-pyridinethiol-1-oxide or salts thereof, and fats. There is a method of adding group carboxylic acids and sugars (Japanese Patent Application Laid-Open No. 5-98001), and there are other methods related to the preservation of cut flowers such as Japanese Patent Publication No. 45-16054.
No., Special Publication No. 47-23369, Special Publication No. 57-1008
No. 1, JP-A-47-25244, JP-A-48-186
No. 53, JP-A No. 50-1185!1 However, although conventional cut flower preservation methods can achieve a certain degree of preservation effect, they are not always satisfactory in terms of discoloration of petals, wilting of leaves and stems, etc. No results have been obtained.

As a result of our search for a method for preserving cut flowers in their natural state for a longer period of time, we discovered a water extract (hereinafter referred to as We discovered that by using liquid YF (the manufacturing method of which will be described later), it is possible to achieve the above-mentioned purpose by maintaining the naturalness of the flowers, such as the color of the flowers and the quality of the leaves and stems.
The present invention has now been completed.

The above-mentioned liquid YF is prepared by fully oxidizing the acidic sulfate soil in the air, leaving it to mature for example at room temperature for 10 days, preferably at least 10 days, and then thoroughly stirring it (for example, 5 to 60 days).
It is obtained by contacting with air for air oxidation (for 30 minutes to 5 hours), followed by drying at 40 to 90° C. for 30 minutes to 5 hours, and then extracting the pulverized product with water. It is desirable that the series of steps of aging or air oxidation described above be repeated several times as necessary.

The present invention will be explained below by showing test examples.

The liquid YF sample used in the test was prepared as described in Examples below. In addition, the number of storage days was determined as follows. First, as shown in Table 1, (1) whole life, (2) flower life, (3) flower color,
(4) Score the leaf quality.

Next, the condition of the cut flower is expressed by the total score of these (1) to (4), and the limit score for admiration is determined depending on the type of flower. The number of days it takes to reach this score is the number of days the cut flower can be stored.

Table 1 Freshness Judgment Test Example 1 The liquid YF10- obtained in Example 1 described later was mixed with 490% tap water.
- In a container containing 500 - of a solution diluted with -, 6 flowers of the same species are placed.
The books were placed and stored at room temperature. Then, as described above, ornamental evaluation was carried out over time and scored, and the number of storage days was determined according to the limit score for each flower. As a control group, an experiment was conducted under the same conditions using a container containing 500 ml of tap water. The results are shown in Table 2.

As shown in Table 2 and Table 3, for completely different types of flowers,
All of them are clearly effective in preserving cut flowers.

Test Example 2 Comparison of Commercial Product A and Commercial Product B The effects of liquid YF on (1) leaf vigor, (2) flower color, and (3) overall vigor are compared. Liquid YF 47.61 and glucose (anhydrous 250
In order to compare the naturalness of flowers between a liquid prepared by diluting a liquid mixture containing aluminum sulfate 2.4.9 (hereinafter simply referred to as liquid YF) 50 times, commercial product A, and commercial product B, the above-mentioned A comparative test was conducted on red roses in the same manner as in Test Example 1 for the following five items.

The results are shown in Table 3.4.5 along with the case of using tap water alone (scores are based on the score table in Table 1).

As shown in Table 3, Compounding liquid YF was superior to commercial product B in terms of leaf vigor, and compared to commercial product A, the same effect was observed.

As can be seen in Table 4, in this experiment, Compound YF did not have much difference in terms of the flowers themselves or the number of storage days when compared with commercially available products A and B. In terms of longevity, the color of the petals changed from red to yellow within 3 to 4 days for commercially available products A and B, whereas discoloration was observed for compounded liquid YF. It was around 10 days ago.

Significant differences were observed in their effects on naturalness.

Table 5 shows the overall performance, and Compounded Liquid YF shows superior effects compared to other commercially available products.

Table 3 Leaf color Table 4 Flower color Table 5 Whole color The cut flower preservative of the present invention does not require particularly complicated means in its manufacturing process, such as air oxidation, drying, crushing, etc.
In each step such as filtration, ordinary and conventional means are used and no other special treatment is required.

In addition, the liquid can be used as it is as a cut flower preservative, but if necessary, it is desirable to add other drugs, compounds, etc. to improve the effect, for example, experimental liquid (1) is diluted approximately 50 times.

The cut flower preservative according to the present invention not only has the effect of extending the shelf life of cut flowers, but also has the effect of maintaining a more natural state, and is particularly excellent in this respect.

The present invention will be explained below with reference to Examples.

Example 1 "□゛ Acidic sulfate soil collected in the Takagi region of Nagasaki region was aged for 10 days at room temperature. After aging, the aged soil was air oxidized for 10 minutes using a professional crawler stirrer. Aging and air oxidation were repeated three times.The oxidized soil was dried at 70°C for 2 hours using a dryer (at this time, the dry soil had a moisture content of 60% and a pH of 3.6). Next, the dry soil was pulverized using a pulverizer. 80 (t″f) of water was added to 10 kg of the soil powder, and the mixture was stirred at room temperature using a stirrer for 16 hours. ). Through the above operations, a liquid substance (liquid YF) t-about 751 was obtained.

Claims (1)

[Claims] A cut flower preservative comprising, as an active ingredient, an extract obtained by extracting acidic sulfate soil sufficiently air-oxidized with water.