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Patent Searching and Data


Title:
METHOD FOR PREPARING S-ABSCISIC ACID
Document Type and Number:
WIPO Patent Application WO/2018/192529
Kind Code:
A1
Abstract:
Disclosed in the present invention is a method for preparing S-abscisic acid, comprising the steps of: (1) performing seed culture and fermentation culture using a strain capable of generating the S-abscisic acid by fermentation to obtain a fermentation liquor containing the S-abscisic acid; (2) performing plate and frame filtration, film filtration, acid precipitation and extraction on the fermentation liquor containing the S-abscisic acid of step (1), so as to obtain an extraction liquid; and (3) performing concentration crystallization, recrystallization and drying for the extraction liquid obtained in the step (2), so as to obtain an S-abscisic acid finished product with a purity of 95% or more. By using the preparation method, the fermentation period can be shortened, the content of the S-abscisic acid generated by fermentation is increased, waste of the S-abscisic acid is avoided by means of the extraction and refining treatment, the purity of the S-abscisic acid is increased at the same time, the purity of the S-abscisic acid in the final product is 95% or more, and the product quality is improved. Moreover, the preparation process conditions are mild, the preparation process is environmentally friendly, and industrial production of the S-abscisic acid is facilitated by same.

Inventors:
LIU JIAN (CN)
XIONG RENKE (CN)
TAN HU (CN)
ZUO JIANYING (CN)
HOU YONGCHUN (CN)
Application Number:
PCT/CN2018/083578
Publication Date:
October 25, 2018
Filing Date:
April 18, 2018
Export Citation:
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Assignee:
LOMON BIO TECH CO LTD (CN)
International Classes:
C12P7/42; C12R1/645
Foreign References:
CN107058410A2017-08-18
CN102399827A2012-04-04
CN104988188A2015-10-21
CN105439847A2016-03-30
Other References:
SHI, TIANQIONG ET AL.: "Production of Abscisic Acid by Fermentation: a Review", CHEMICAL INDUSTRY AND ENGINEERING PROGRESS, vol. 35, no. 7, 5 July 2016 (2016-07-05), pages 2140 - 2143
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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