Summary
The production of 5,8,11,14,17-cis-eicosapentaenoic acid (EPA) by Mortierella fungi was hgghly stimulated when they were grown in a medium containing linseed oil at low temperature. This phenomenon was suggested to be mainly due to low temperature-dependent production of EPA from arachidonic acid formed through the n-6 route, although conversion of α-linolenic acid in the added linseed oil to EPA through the n-3 route took place at the same time. The amount of EPA accumulated reached 1.88 mg/ml of culture broth (66.6 mg/g dry mycelia) on cultivation of M. alpina 1S-4 with linseed oil at 12° C.
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On leave from Suntory Ltd., Osaka 618, Japan
Offprint requests to: Sakayu Shimizu
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Shimizu, S., Kawashima, H., Akimoto, K. et al. Conversion of linseed oil to an eicosapentaenoic acid-containing oil by Mortierella alpina 1S-4 at low temperature. Appl Microbiol Biotechnol 32, 1–4 (1989). https://doi.org/10.1007/BF00164813
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DOI: https://doi.org/10.1007/BF00164813