Process for abstracting biological pesticide avermectin from biochemical wastes

A technology of abamectin and waste, which is applied in the field of extracting biochemical pesticide abamectin, and can solve the problems of preparing abamectin by extracting biochemical waste and the like.

Inactive Publication Date: 2008-10-15
SHANDONG MEI LUO FU AGRI POLYTRON TECH
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Problems solved by technology

[0010] Up to now, there is no report of utilizi...

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  • Process for abstracting biological pesticide avermectin from biochemical wastes
  • Process for abstracting biological pesticide avermectin from biochemical wastes

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Embodiment Construction

[0014] The biochemical waste of the present invention is fermented with crude glucose as a carbon source and liquid ammonia as a nitrogen source, and the remaining liquid ammonia in the fermentation broth after glutamic acid is extracted is recovered to form the waste liquid after ammonium sulfate.

[0015] A method for preparing abamectin by extracting biochemical waste, including alcohol extraction, filtration, and extraction. The specific steps are as follows:

[0016] (1) Add methanol to the biochemical waste, fully mix and extract, separate and retain the upper layer extract, then add methanol to the lower layer, repeat the same operation for 2-3 times, and combine the alcohol extract; among them, the biochemical waste and methanol The ratio is: (20-40)g: (50-100)ml.

[0017] (2) Filter the alcohol extract obtained in step (1),

[0018] (3) Add 100-150ml of 10% NaCl solution to the filtrate of step (2), extract 2-3 times with dichloromethane, combine the extracts, and the was...

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Abstract

The invention relates to a method for extracting and making avermectin by biochemical waste. The method comprises the following steps that: methanol is added in biochemical waste to carry out alcohol extraction, filtration and dichloroethene extraction; and dichloroethene extract is dried by waterless Na2SO4 and then is concentrated at the temperature of between 38 and 45 DEG C after filtration to obtain avermectin product. The invention, adopting biochemical waste water as a raw material to make biochemical pesticide, not only opens up the source of novel cheap raw material to control environmental pollution, but also substantially reduces production cost.

Description

Technical field [0001] The invention relates to a method for extracting biochemical pesticide abamectin by using biochemical waste. Background technique [0002] Biopesticides are products processed directly from living organisms or natural active substances produced by organisms. They are usually made from natural agricultural and sideline products (plant and animal proteins) as raw materials through microbial fermentation. Biological pesticides have the characteristics of strong specificity, high activity, environmental safety, relative safety to non-target organisms, many development and utilization channels, and large development options. They are known as pollution-free pesticides. Therefore, biological pesticides are more suitable than chemical synthetic pesticides to expand production and application in the comprehensive prevention and control strategy of modern agricultural pests. [0003] Avermectin (Avermectin) is a new type of dual-use antibiotics for agriculture and l...

Claims

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Application Information

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IPC IPC(8): C07H17/08A01P7/00C05F5/00
CPCY02E50/343Y02A40/20
Inventor 李杜王玉军李红云田纯华李玲李熵李刚刘合昌单尚东王少伟
Owner SHANDONG MEI LUO FU AGRI POLYTRON TECH
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