METHOD OF AVERMECTIN PREPARING Russian patent published in 1998 - IPC

Abstract RU 2109057 C1

FIELD: biotechnology, microbiology. SUBSTANCE: method involves growing the culture-producer, extraction of the end product with organic solvent mixing with water, repeated extraction of the obtained primary extract with organic solvent no mixing with water under alkaline conditions. Chromatographic purification is carried out at isocratic regime using system chloroform : methanol at ratio (80-100):1. EFFECT: improved method of preparing. 13 cl

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RU 2 109 057 C1

Authors

Esipov Stanislav Emel'Janovich

Danilenko Valerij Nikolaevich

Dates

1998-04-20—Published

1994-07-05—Filed