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- W2364880257 abstract "Orthogonal test was carried out to optimize extracting process of total alkaloid from Herba Pegani Harmalae(TAH)based on four factors,namely,ethanol concentration,solid-liquid ratio,ultrasonic power and reflux time. The extract under optimal conditions was studied for its scavenging activity on hydroxyl radicals(·OH)and oxygen free radical(·O2-). Results showed that the optimal extraction process was as follows: 55% of ethanol concentration,solid-liquid ratio is 15∶1,ultrasonic power was 300 W with reflux time of 2.0 h. Under the optimum process,the yield of total alkaloid was 19.94 mg/g. Meanwhile,total alkaloid from Herba Pegani Harmalae present remarkable scavenging effect on·OH and·O2-." @default.
- W2364880257 created "2016-06-24" @default.
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- W2364880257 date "2014-01-01" @default.
- W2364880257 modified "2023-09-30" @default.
- W2364880257 title "Extraction of total alkaloid from Herba Pegani Harmalae by orthogonal test and study on its scavenging activity on free radical" @default.
- W2364880257 hasPublicationYear "2014" @default.
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