[The anti-microbial activity of the extraction from leaves of Sargentodoxa cuneata].
OBJECTIVE
To compare the anti-bacterial activity of the extracts from different organs and the leaves from different locations of Sargentodoxa cuneata, and to provide the basis for the exploitation of the leaves.


METHODS
The leaves was distilled with 60% acetone and the water phase after the extraction with petroleum ether and chroloform was used in the test. The Staphylococcus cureus and Pseudononas aerujinosa were used as the experimental strain. The minimal inhibition concentration was calculated using agar plate dilution method. The minimal bacterialcidal concentration was calculated using tube dilution method.


RESULTS
The anti-bacterial activity of the extraction of S. cuneata from leaves was the highest. That from slices took the second place and the third was that from old stems. That from twins was the lowest. The sequence of the anti-bacterial activity of S. cuneata from different locations was Daleishan > Bianshanzu > Huadingshan > Changhua > Kuochangshan.


CONCLUSIONS
The anti-bacterial activity of the extraction from the leaves of S. cuneata can be detected and the foreground of the exploitation and utilization is good.
Ecology Institute of Taizhou University, Zhejiang Linhai 317000.
Junmin
J
Li
Zexin
Z
Jin
Hong
H
Shao
D000900:Anti-Bacterial Agents / Q000302:isolation & purification / Q000494:pharmacology*; D001412:Bacillus subtilis / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D010936:Plant Extracts / Q000302:isolation & purification / Q000494:pharmacology; D018515:Plant Leaves / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D029626:Ranunculaceae / Q000737:chemistry* / Q000145:classification; D013211:Staphylococcus aureus / Q000187:drug effects*
D000900:Anti-Bacterial Agents; D010936:Plant Extracts