Biomass composition of a Candida pseudotropicalis new strain grown on crude sweet whey

A yeast strain isolated from whey and named Candida LY 496 was grown continuously on crude sweet whey. The obtained biomass had a crude protein content of 47%. The amino acid composition was determined by high performance liquid chromatography (h.p.l.c). All essential amino acids were present and among them lysine was predominant (11.8%). The total nucleic acids of the biomass was 6.4%. Lipids represented 5% and the fatty acids 2% of the dry matter; 75% of the fatty acids were unsaturated, and linoleic acid constituted only 1% of the total fatty acids. Niacin and vitamin B₂ were the most abundant vitamins of the B group. Therefore Candida LY 496 biomass could be incorporated in animal food intakes.