Effects of culture condition on fatty acids in Pseudomonas sp

Abstract

Abstract: The investigation on the growth of Pseudomonas sp.and the dynamics of its fatty acids under various culture conditions indicated that the optimum temperature for its growth was 30 ℃,and the best carbon source was starch.13 kinds of fatty acids were detected,among which,c16:1(n-7),c15:0,c16:0,c17:0,c18:1(n-6),c18:1(n-9),9,10-cp-c17:0 and iso9,10-cp-c17:0 were the major ones.When cultured at 30 ℃,the relative content of unsaturated fatty acids decreased significantly.Carbon source in the media was the crucial factor affecting the contents of odd- and cyclopropane fatty acids.Cluster analysis revealed that temperature had a more obvious effect than carbon source.

Key words: Marine bacterium (Pseudomonas sp), Culture condition, Fatty acids

CLC Number:

Q936

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