NDLI: Investigation of the effect of berberines alkaloids in Coptis chinensis Franch on Bacillus shigae growthby microcalorimetry

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Investigation of the effect of berberines alkaloids in Coptis chinensis Franch on Bacillus shigae growthby microcalorimetry

Content Provider	Springer Nature Link
Author	Yan, Dan Jin, Cheng Xiao, XiaoHe Dong, XiaoPing
Copyright Year	2007
Abstract	The inhibitory effects of five berberines alkaloids (BAs) from rhizoma of Coptis chinensis Franch, a traditional Chinese medicinal (TCM) herb, on Bacillus shigae (B. shigae) growth were investigated by microcalorimetry. The power-time curves of B. shigae with and without BAs were acquired; meanwhile, the extent and duration of inhibitory effects on the metabolism were evaluated by growth rate constants (k $_{1}$, k $_{2}$), half inhibitory ratio (IC$_{50}$), maximum heat output (P $_{max}$), and peak time (t $_{p}$). The values of k $_{1}$ and k $_{2}$ of B. shigae in the presence of the five BAs decreased with the increasing concentrations of BAs. Moreover, P $_{max}$ was reduced, and the value of t $_{p}$ increased with increasing concentrations of the five drugs. The inhibitory activity varied with different drugs. IC50 of the five BAs was respectively 75 μg/mL for berberine, 90 μg/mL for coptisine, 115 μg/mL for palmatine, 220 μg/mL for epiberberine, and 400 μg/mL for jatrorrhizine. The sequence of antimicrobial activity of the five BAs: berberine > coptisine > palmatine > epiberberine > jatrorrhizine. The functional groups methylenedioxy at C2 and C3 on phenyl ring improve antimicrobial activity more strongly than methoxyl at C2 and C3 on phenyl ring. However, the effect of bacteriostasis is not significant with methylenedioxy or methoxyl at C9 and C10 on phenyl ring.
Starting Page	638
Ending Page	642
Page Count	5
File Format	PDF
ISSN	10069291
Journal	Science in China Series B: Chemistry
Volume Number	50
Issue Number	5
e-ISSN	18622771
Language	English
Publisher	Science in China Press
Publisher Date	2007-01-01
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	berberines alkaloids microcalorimetry Bacillus shigae inhibitory effect Chemistry/Food Science
Content Type	Text
Resource Type	Article
Subject	Chemistry

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