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Lipid formation and γ‐linolenic acid production by Mucorales fungi grown on sunflower oil
Author(s) -
Čertík M.,
Baltészov L.,
Šajbidor J.
Publication year - 1997
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1046/j.1472-765x.1997.00173.x
Subject(s) - mucorales , sunflower oil , food science , arachidonic acid , linoleic acid , biology , linseed oil , gamma linolenic acid , sunflower , biomass (ecology) , botany , biochemistry , fatty acid , chemistry , polyunsaturated fatty acid , enzyme , horticulture , agronomy , medicine , mucormycosis , pathology
Lipid formation and γ‐linolenic acid (GLA) production by 48 species of Mucorales fungi grown on sunflower oil (which consists of 70% linoleic acid ; LA) were studied. The strains accumulated 42·7–65·8% lipid in biomass (7·66–13·39 g l −1 ). Eight cultures produced more than 200 mg GLA l −1 . Highest GLA yields exhibited Mucor mucedo CCF‐1384 and Cunninghamella echinulata CCF‐103 (379 and 373 mg l −1 , respectively). Mortierella alpina CCF‐185 synthesized 465 mg l −1 arachidonic acid. While the decrease of LA utilization index (ratio of LA content of cell lipid/LA content of oil source) was accompanied with growth of delipidized biomass and with reduction of lipid accumulation within the cells, high lipid yield was as a consequence of the direct oil source incorporation into intracellular lipid.