EFFECT OF PH AND AGE OF CULTURE ON CELLULAR FATTY-ACID COMPOSITION OFLEUCONOSTOC-OENOS

Citation
Z. Dricicachon et al., EFFECT OF PH AND AGE OF CULTURE ON CELLULAR FATTY-ACID COMPOSITION OFLEUCONOSTOC-OENOS, Letters in applied microbiology, 22(5), 1996, pp. 331-334
Citations number
20
Categorie Soggetti
Microbiology,"Biothechnology & Applied Migrobiology
ISSN journal
02668254
Volume
22
Issue
5
Year of publication
1996
Pages
331 - 334
Database
ISI
SICI code
0266-8254(1996)22:5<331:EOPAAO>2.0.ZU;2-J
Abstract
This study is concerned with the fatty acid composition of three strai ns of Leuconostoc oenos grown at different pH. The most abundant fatty acids were C18: 1 omega(9), C19:0 cy(omega(9,10)) and C16:0, followed by C16: 1 omega(9) and C14:0. The pH considerably modified the fatty acid distribution in Lo107 (an acidophilic strain) and Lo8413 ( a mode rately acidophilic strain). However, moderate changes occurred for LoA TCC 23277 (a less acidophilic strain). At pH 2.9, Lo107 has a remarkab ly high level of C19 : 0 cy-(omega(9,10)) and C19:0 cy(omega(11,12)). Proportions of C18:1 and C19:0 cycle acids varied mainly with the pH o f the medium and also as a function of growth phase. The degree of uns aturation of fatty acids also varied with pH.