[Screening of anti-bacteria activity of extracts of Gaultheria leucocarpa var. yunnanensis].
OBJECTIVE
To further develop Gaultheria leucocarpa var. yunnanensis, anti-bacteria constituents in it were screened.


METHODS
The constituents were extracted by chromatographic process. The anti-bacteria test was made with regulatory method of analysis.


CONCLUSIONS
Anti-bacteria test with extracts of water, acetic ester and n-butanol showed that 3 extracts from 22 samples had anti-Staphylococcus aureus action, and the extracts from root and stem showed the same result. 2 extracts could kill Escherichia coli and Pseudomonas aeruginosa. The lower the concentrate, the less the anti-bacteria action was. These results suggested that not only essential oil but other ingredients from G. leucocarpa var.yunnanensis have anti-bacteria activity. Anti-fungi test of the same extracts didn't indicate remarkable action.
Ma
X J
XJ
Department of Natural Medicines, School of Pharmaceutical Science, Beijing University, Beijing 100083, China.
Zhao
L
L
Du
C F
CF
Gong
Y J
YJ
Zheng
J H
JH
Chen
X Z
XZ
D000900:Anti-Bacterial Agents / Q000302:isolation & purification / Q000494:pharmacology*; D004365:Drugs, Chinese Herbal / Q000302:isolation & purification / Q000494:pharmacology*; D004926:Escherichia coli / Q000187:drug effects; D031282:Gaultheria / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D011550:Pseudomonas aeruginosa / Q000187:drug effects*; D013211:Staphylococcus aureus / Q000187:drug effects*
D000900:Anti-Bacterial Agents; D004365:Drugs, Chinese Herbal