JP2001352839A - Method for decreasing irritating material in vegetable and oil cake fertilizer for decreasing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a cultivation method for decreasing e.g. irritating odor, bitterness, acridity each of vegetables without doing breed improvement, i.e., to realize the above decrease by devising a component to be given in cultivation. SOLUTION: The subject method for decreasing irritating material(s) in vegetables comprises cultivating the vegetables through using oil cake of camellia seeds as a fertilizer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a vegetable for producing vegetables with reduced irritating substances such as irritating odor or acrid.
The present invention relates to a fertilizer for cultivation of abra camellia oil tea grain containing triterpenoid saponins, a fertilizer for cultivation containing triterpenoid saponins extracted from the oil cake, and a method for cultivating vegetables using the compound fertilizer.

[0002]

2. Description of the Related Art Onions with high pungent odors and harsh grasses with strong savoryness have risen in living standards, and are gradually shunned as they enter the age of satiety, irritating their eyes during cooking and causing tears. There has been a strong demand for the supply of no onions and spiny grass with few sorghum, and attempts to improve these problems by breeding, which can be called essential modification, have been vigorously carried out, and results are being obtained. It takes time to achieve complete improvement, and it has not yet achieved sufficient and complete results.

On the other hand, in order to improve this problem, attempts have been made to improve the cultivation method of these vegetables to solve the problem, and although the mechanism is unknown, triterpenoid saponins are given at the time of onion cultivation or at the time of cultivation of spinach. It has been found empirically that it is effective in reducing the pungent odor of onions and the reduction of acridness in spinach. In conducting such trials, triterpenoid saponins (acidic saponins) were extracted from tea seeds, which are known as triterpenoid saponin-containing substances. The cultivation experiments were carried out, or tea seed oil cakes obtained by squeezing oil from tea seeds were tried to be put into practical use as oil cake fertilizers containing triterpenoid saponins. It was a result of solving the problem by improving the cultivation method experienced.

[0004]

[Problems to be Solved by the Invention] However, vegetables are grown by extracting triterpenoid saponins from tea seeds, or by using tea seed oil cake obtained by extracting oil from tea seeds as triterpenoid saponin oil cake fertilizer. Cultivation of tea is not intended for tea seeds themselves to be cultivated for the purpose of collecting seeds.This attempt is to include triterpenoid saponins to confirm the effect of triterpenoid saponins on reducing vegetable irritants. However, since it uses a well-known tea seed oil cake as a model substance, there are many problems in practical use, and it has not been possible to put it on a profitable basis and widely put it into practical use.

[0005] In other words, tea is not intended for seed collection, and it is difficult for tea to grow due to flowering and fruiting of nutrients caused by flowering and seeding of the tea tree. There is a movement to avoid fruiting as much as possible,
Cultivation methods that do not bloom due to breeding, etc. have been adopted, and currently the yield of domestic tea seeds is steadily decreasing, it is difficult to secure the quantity, and the price is soaring, and the production of triterpenoid saponins from tea seeds is rising. The use of extracts and tea seed oil lees obtained by squeezing oil from tea seeds as triterpenoid saponin oil lees fertilizer to spread the method of cultivating vegetables is almost impossible in terms of resources and profitability. In order to put into practical use cultivation methods using fertilizers containing triterpenoid saponins, which are effective in reducing irritating substances in vegetables, it is necessary to find resources that meet the objectives both in terms of resource supply and profitability. This is an indispensable task for solving the problem.

[0006]

Means for Solving the Problems Upon searching and investigating resources meeting the above-mentioned object, it was found that the oil squeezed cake of the oiled tea seeds of the present invention was most suitable for solving the problems. That is, it constitutes a "method of reducing vegetable irritants by cultivating vegetables using camellia seed oil cake as a fertilizer". In particular, the invention of "a fertilizer containing a substance for reducing irritating substances, which is an oil cake of abra camellia seeds including triterpenoid saponin, wherein the fertilizer for reducing irritating substances in vegetables" is rich in resources, inexpensive, and practical. It is extremely effective.

[0007] That is, abra camellia oil tea (C. oleiferal)
Is a product cultivated for the purpose of producing camellia seeds themselves for so-called camellia oil production. The oil content of the seeds is as high as 30%, and it is high in central and southern provinces of China (Zhejiang, Hunan, Guangxi, etc.), Taiwan , Is widely cultivated in Hainan Island, Vietnam, Laos, etc., is abundant in resources, and the squeezed oil (literally waste) is a by-product and can be obtained in large quantities at low cost. This oil of brown camellia oil contains a very large amount of triterpenoid saponins, and is a resource that can be said to be a treasure trove for the purpose of the present invention.

The main components contained in the oil cake are as shown in the following table. From the composition table, it is obvious at first glance how the oiled brown tea oil cake meets the purpose.

In the present invention, the oiled brown tea cake containing triterpenoid saponin used as a fertilizer for reducing irritating substances in vegetables can be used as an oil cake fertilizer by spraying the oil cake as it is on vegetable growing areas,
In addition, nitrogen, phosphorus and potash fertilizer can be blended with the oil cake and used. Further, a triterpenoid saponin is extracted from the oil cake, and the extracted triterpenoid saponin and nitrogen.
Even if phosphorus and potassium fertilizer are blended, they can be used.

[0010] The triterpenoid saponins extracted from the oiled tea leaves of Abra camellia as a substance for reducing irritating substances in vegetables and sold in agricultural grades include two types of saponin powder and saponin paste. It seems. Therefore, in order to produce a compound fertilizer, triterpenoid saponins sold in such agricultural grades and nitrogen, phosphorus, and potash fertilizers may be mixed in appropriate amounts.

It is true that cultivation of vegetables using fertilizers containing such triterpenoid saponins reduces the irritating substances of vegetables, but the reason and mechanism are unknown at present. However, if vegetables are cultivated using a fertilizer containing abra camellia oil tea oil lees containing the triterpenoid saponin developed in the present invention, the onion will no longer have an irritating odor that pierces the eyes, and the horen grass will have no peculiar acne, and the commercial value And promised to increase sales and profits.

It is not limited to the above-mentioned example that the fertilizer containing the oil of the invention of Abra camellia containing the triterpenoid saponin of the present invention is effective not only in the above-mentioned examples but also in cucumber, eggplant, tomato and pepper. , Strawberries, and other leafy species such as Chinese cabbage, cabbage, lettuce, spinach,
For roots such as onion and garlic, it is effective for cultivation of radish, ginseng, potato, taro, burdock and so on.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the contents and effects of the present invention will be described in detail and concretely with reference to examples. [Example 1] As the original manure, the following 1. 20 kg of organic fertilizer base a. Nitrogen fertilizer; 6% or 1.2 kg / 20 kg b. Phosphate fertilizer; 6%, ie 1.2 kg / 20 kg c. Potash fertilizer; 6% or 1.2 kg / 20 kg d. Bracken oil tea seed lees; 30%, ie 6 kg
1. A fertilizer manufactured by Am Corporation (hereinafter referred to as fertilizer A) containing / 20 kg. A fertilizer which does not contain abra camellia tea seed meal in the above fertilizer, that is, a. Nitrogen fertilizer; 6% or 1.2 kg / 20 kg b. Phosphate fertilizer; 6%, ie 1.2 kg / 20 kg c. Potassium fertilizer: 6%, ie 1.2 kg / 20 kg (hereinafter referred to as fertilizer B)

3. A fertilizer (hereinafter referred to as fertilizer C) in which 6% of tea saponin extracted lees are blended with a base of 888 fertilizer containing crown organic and organically produced by Seiwa Fertilizer Industry Co., Ltd., and crude tea seed saponin powder is added to a concentration of 5%. )), Onions were cultivated on three kinds of test farmland where 200 Kg / 10a of fertilizer was applied, and two months before harvesting,
Months before each fertilizer on each farmland as topdressing,
Onions were cultivated by applying as a top fertilizer of 40 Kg / a.
Harvested onions were evaluated by a raw food test, and randomly selected consumers (30 people) were evaluated for their color, appearance, taste, sugar content, and presence or absence of irritating odor (with or without tears). The results are as shown in Table 1.

[Table 1]

From the above results, it can be seen that the fertilizer containing the oiled brown tea seed meal of the present invention has the same stimulating odor reducing effect as the fertilizer mixed with the tea saponin extracted meal, and is also inexpensive and has abundant resources. It turned out that the merit that can be spread is great.

Example 2 On three test cultivated lands where the same basic fertilizer as in Example 1 was applied, spinach was grown instead of onion, and topdressing was similarly applied to harvest spinach. The results of conducting a raw food test on the harvested Horen grass in the same manner as in Example 1 are as shown in Table 2.

[Table 2] The above results show that the fertilizer blended with the oiled brown tea seed lees of the present invention has the same reducing effect as the fertilizer blended with the tea saponin extracted lees, as well as the irritating odor of onion, as well as the reduction of the aggressiveness of the horen grass. It was found that the fertilizer mixed with the real meal was inexpensive, had abundant resources, and had the effect of being widely spread.

[0017]

The oil cake fertilizer for reducing the irritating substance of vegetables comprising the oil cake of camellia seeds of the present invention has a high triterpenoid saponin content, and if vegetables are grown using the fertilizer containing the oil cake of camellia seeds, It is highly effective in reducing irritating odor, bitterness, and acridness. Furthermore, Abra camellia oil tea seed meal, which is harvested for the purpose of taking camellia oil and is a residue obtained by exploiting camellia oil, is abundant as a resource, has a low price, and is suitable and widely effective for widespread use as a fertilizer for cultivating crops. .

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Claims (6)

[Claims] 1. A method for reducing vegetable irritants by cultivating vegetables using camellia seed oil cake as a fertilizer. 2. A fertilizer, wherein the fertilizer for reducing an irritating substance of a vegetable comprises a substance for reducing an irritating substance, which is oil cake of a camellia seed including triterpenoid saponin. 3. A compound fertilizer characterized in that the fertilizer for reducing irritating substances is composed of a mixture of abra camellia oilseed meal containing triterpenoid saponin, and nitrogen, phosphorus and potassium fertilizers. 4. The compound fertilizer according to claim 3, wherein the stimulant-reducing fertilizer comprises a mixture of triterpenoid saponins and nitrogen / phosphorus / potassium fertilizers extracted from Abra camellia oil tea seed meal containing triterpenoid saponins. 5. A method of cultivating an onion having reduced tearing and irritation using the oil lees fertilizer for reducing irritating substances of vegetables according to claim 2, 3 or 4. 6. A method for cultivating a lotus grass with reduced agum, using the oil cake fertilizer for reducing irritating substances of vegetables according to claim 2, 3, or 4.