Title:
USE OF PLANT CRUDE EXTRACTS OF PUERARIA PEDUNCULARIS FOR PREPARATION OF MOLLUSCICIDES
Document Type and Number:
WIPO Patent Application WO/2016/183790
Kind Code:
A1
Abstract:
Provided is a use of plant crude extracts from Pueraria peduncularis for preparation of pesticides against pomacea canaliculata and oncomelania snails, the method of extracting crude extracts from Pueraria peduncularis comprising the steps of: (1) drying the roots of Pueraria peduncularis at 50°C and grinding the dried roots of Pueraria peduncularis into crude pieces of a size ranging from 1 mm-5 mm; (2) using ether petroleum and chloroform as extraction solvents to extract the crude pieces obtained in step (1) in a sequential order, the weight ratio of the crude pieces to the extraction solvents being 1:3, and subsequently using methanol, 1-butanol, ethanol or isopropyl alcohol, or a combination thereof, as an extraction solvent to carry out the extraction at 40-70°C for 12-24 hours three times; and concentrating and drying the extracted liquid to obtain a concentrate, namely crude extracts of Pueraria peduncularis.
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Inventors:
YANG CHUNPING (CN)
CHEN HUABAO (CN)
ZHANG MIN (CN)
GONG GUOSHU (CN)
CHEN HUABAO (CN)
ZHANG MIN (CN)
GONG GUOSHU (CN)
Application Number:
PCT/CN2015/079240
Publication Date:
November 24, 2016
Filing Date:
May 19, 2015
Export Citation:
Assignee:
SICHUAN AGRICULTRUAL UNIV (CN)
International Classes:
A01N25/02; A01P9/00
Foreign References:
| US20070264298A1 | 2007-11-15 | |||
| US20120296073A1 | 2012-11-22 | |||
| JP5176663B2 | 2013-04-03 |
Other References:
WANG, SHAOLIN ET AL.: "Summary of the research on molluscicides", JOURNAL OF YUNYANG MEDICAL COLLEGE, vol. 21, no. 05, 30 October 2002 (2002-10-30)
ZENG, MING ET AL.: "New triterpenoids from puraria peduncularis", ACTA PHARMACEUTICA, vol. 35, no. 06, 28 June 2000 (2000-06-28)
ZENG, MING ET AL.: "New triterpenoids from puraria peduncularis", ACTA PHARMACEUTICA, vol. 35, no. 06, 28 June 2000 (2000-06-28)
Attorney, Agent or Firm:
BEIJING JUNZHI INTELLECTUAL PROPERTY AGENCY et al. (CN)
北京君智知识产权代理事务所 (CN)
北京君智知识产权代理事务所 (CN)
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