Sprout-inhibiting active compound, preparation method thereof and applications of the sprout-inhibiting active compound in sprout inhibition

Abstract

The invention mainly obtains a compound having sprout-inhibiting activity from extract of a malignant invasive weed 'crofton weed'. The compound is a plant sprout inhibiting agent used for the fields of storage, preservation, weed control, sprouting inhibition, chemical topping, and the like. Extraction, separation and activity tracking are combined in the technology provided by the invention. The technology includes crude extraction of crofton weed powder by ethanol, redissolution of ethanol extract by water having a certain temperature, digestion with ethyl acetate and purification. Natural products derived from the 'crofton weed' are manufactured into a plant-source pesticide. The specification mainly expounds that the sprout-inhibiting active compound can reduce economic loss caused by sprouting, water loss, disease, etc. in storage processes of tubers. The active compound can be applied for prolonging the storage period of the tubers. The active compound is low in production cost and obvious in effect, is simple to use and is prone to popularization. In addition, the crofton weed is changed from a harmful material into a treasure, thus preventing huge economic loss of tubers in storage processes.

Description

Technical field [0001] The invention relates to the technical field of plant sprout suppression, in particular to a fat-soluble extracting active substance from Eupatorium adenophorum, a preparation method thereof, and application in potato storage. Background technique [0002] Compared with the seeds of rice, wheat, corn and other crops, potato tubers have high water content (70%-80%), large volume and thin skin, which are prone to damage during harvesting and transportation. Improper storage will cause large areas of rot or untimely The sprouting of potatoes, more than 20% of our country’s potatoes are lost due to improper storage and transportation. Therefore, the safe storage of potatoes is an important link in the development of its industrialization. Tubers can be divided into seed potatoes and commercial potatoes according to their uses. The storage requirements are not exactly the same. As commercial potatoes, if they germinate, they lose value. Especially for fresh tube...

AI Technical Summary

Problems solved by technology

Mainly use sprout inhibitor in the chemical method, currently used sprout inhibitor mainly paclobutrazol, uniconazole, α-naphthalene acetic acid, CIPC, MH etc., although have certain effect, but chemical agent is the product of artificial synthesis, although The cost is low and the use effect is obvious, but there are other problems, such as the use of chemical storage agents in the storage of potato seed potatoes, which may lead to irregular or even non-germination of seed potatoes; in addition, chemical agents in plants It is not easy to decompose, has high residue, stable structure and is not easy to decompose. Long-term intake of potatoes treated with chemical agents will cause a certain burden on the body and threaten the health of the body.

However, controlling the storage period through physical conditions requires a large amount of funds for infrastructure construction. Physical condition control methods are suitable for enterprises and research institutes. Due to cost and other reasons, it is difficult to popularize among farmers.

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