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Updated: Apr 19, 2026

Identification of Fatty Acids in Bacillus cereus
Published on: December 5, 2016
Production of cis-11-eicosenoic acid by Mortierella fungi
H Kikukawa1, E Sakuradani, Y Nishibaba
1Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan.
Aim:
To find cis-11-eicosenoic acid (20:1ω9, EA)-producing micro-organisms.
Methods And Results:
We found EA-producing fungi by screening about 300 fungal strains and identified a major fatty acid accumulated in the Mortierella fungi as EA by means of GC-MS analysis. In particular, Mortierella chlamydospora CBS 529.75 produced a high amount of EA (36.3 mg g(-1) of dried cells) on cultivation at 28°C for 4 days and then at 12°C for 3 days. In the result of lipid analysis, most of the EA was a component of triacylglycerols, not phospholipids.
Conclusion:
We found that M. chlamydospora CBS 529.75 was the best producer for the microbial production of EA.
Significance And Impact Of The Study:
EA is beneficial as a raw material for medical supplies and a moisturizing component of cosmetic creams. This is the first report of microbial production of EA.
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