Effects of Tea and Fruits Juice on Bacterial Proliferation

URI http://cur-ren.cjc.ac.jp/metadata/41
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Title
Effects of Tea and Fruits Juice on Bacterial Proliferation
Author
著者 Hayashi Hideo
著者(別表記)
著者 Iizuka Masako
著者(別表記)
著者 Katsuta Tomoko
著者(別表記)
著者 Shimada Tomoko
著者(別表記)
著者 Mishima Atsuko
著者(別表記)
著者 Sakaeda Norisuke
著者(別表記)
著者 Manabe Yoshie
著者(別表記)
Abstract

Effect of tea and fruits on the proliferation of opportunistic pathogens were examined. Three kind of teas: green tea, oolong tea and black tea and four pathogens: Bacillus subtilis, Staphylococctus aureus, E. coli and Pseudomonas aeruginosa were subjected to the experiments. The three kinds of tea leaf extracts (25g leaves in 500ml at 95C for 5min) inhibited the proliferation of S. aureus, B. subtilis and E. coli, but'not of P. aerugz'nosa, The effectiveness was correlated with the catechin content of the teas and MIC of catechin against S. aureus was lmg/ml, against B. subtilis and E. coli were 1-2mg/ml. The effect was bactericidal and the three bacterial strains tested were all killed at the concentration of above MIC, but P. aeruginosa was resistant. Juice of lemon and citrus
(Sudachi), inhibited the proliferation of all the four organisms within 60min soaking, but those of grapefruit, kiwi and apple were less effective in inhibiting the proliferation. The effect was bactericidal and the results suggest the major factor was the lower pH.

Subject
490 Medical sciences. Pharmaceutics
Keyword
Tea
fruit
bactericidal
effect
catechin
Note

この論文は国立情報学研究所によって電子化された。

Publish Date
2007
Publication Title
Chugokugakuen journal
Volume
6
Start Page
5
End Page
10
ISSN
1348-1452
NCID
AA11808812
Publisher
中国学園大学/中国短期大学
Copyright Holders
中国学園大学/中国短期大学
Official URL
Contents Type
Departmental Bulletin Paper
language
English
File Version
publisher