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Inhibition of growth of the green alga Chlorella pyrenoidosa by unsaturated fatty acids
Author(s) -
Ikawa Miyoshi,
Hartshorne Toinette,
Caron LuAnn,
Iannitelli Robert C.,
Barbero Linda J.,
Wegener Karin
Publication year - 1984
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02540823
Subject(s) - chlorella pyrenoidosa , elaidic acid , oleic acid , polyunsaturated fatty acid , chemistry , food science , chlorella vulgaris , unsaturated fatty acid , fatty acid , algae , chlorella , biology , botany , linoleic acid , biochemistry
The activity of a number of unsaturated fatty acids in inhibiting the growth of the green alga Chlorella pyrenoidosa has been studied using the paper disk‐agar plate method. Acrylic and undecylenic acids were highly active, but other θ‐unsaturated fatty acids tested were only weakly active. Oleic and elaidic acids were inactive at 0.2 M, but other C 18 ‐C 22 acids with 2 to 6 double bonds were generally active down to a concentration of 0.01–0.005 M. Activity with chaulmoogric acid was noted down at 0.002–0.001 M. Diffusion rates of the acids through the agar seem to affect the size of the inhibition zones. The implications that polyunsaturated fatty acids may play a role in algal ecology are discussed.