Microbial utilization of palm oil. Part I. Screening of yeasts and cultural conditions for cell production from palm oil.

Abstract

Manyyeast strains which grew on palm oil were obtained from natural sources. Ayeast strain capable of assimilating crude palm oil effectively was isolated from field soil, and named Torulopsis Candida Y-128. When the substrate was emulsified with a nonionic surfactant, yeast cell growth was promoted. In a shaking culture of this strain, corn steep liquor as a natural nutrient was good for cell growth, and ammoniumsulfate was moreeffective than any other nitrogen source. Theprotein content of dried cells was over 40% and amino acids of the yeast protein were well-balanced.