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ID 19046
Eprint ID
19046
FullText URL
Thumnail 71_277.pdf 370 KB
Title Alternative
Studies on the Bacterial Metabolism by Means of Oxidation-Reduction Potential Ⅰ: Oxidation-Reduction Potential in the Culture Media of Salmonella typhi
Author
Ueda, Maomi
Abstract
In order to study some physiological aspacts of bacteria, using Sal. typhi 57S as the test organism, the author measured the oxidation-reduction potential of the culture media with the lapse time. Salt solution, bouillon and M/50 phosphate buffer were used as the fundamental culture media, and lactate and glucose as the substrates. The results were as follows: 1) The potential of the liquid media of Sal. typhi 57S is lower in longer time culture. By separation of bactera, this potential rapidly rises by about 60 to 70 % , and then becomes stable, though still shows the tendency of some rise. By re-pouring the separated bacteria into the original culture media, the potential falls again, and this fall is generally milder when the first culture time is shorter. 2) There are a symmetrical correlation between the increasing rate of growing bacteria and the rising rate of potential of the culture media by separation of bacteria. 3) In a medium, in which a collodion membrane is placed to separate the bacteria-containing and non-containing part, the fall of potential is more marked in the part far from the bacteria-containing part, and, on the contrary, the potential of the bacteria-containing part shows a rising tendency. This phenomenon is marked when the two parts are separated by cellophane or bladder membrane, and not so marked by filter paper.
Published Date
1959-01-31
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume71
Issue
issue1
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
277
End Page
282
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/71/1/71_1_277/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma