Abstract
The production of microbial cell substances from hydrocarbons has been attracting attention of people for many years. Production of bacterial cell from hydrocarbons is disadvantageous because of the difficulty in separating cell from the broth.We have tested hydrocarbon-utilizing yeasts isolated from garden soil for cell production. The effect of medium composition on yeast growth and the utilization of individual hydrocarbon by yeast, strain Y-3, were investigated.As a nitrogen source, urea was more effective than ammonium nitrate. When a very smal! amount of corn steep liquor was added, yeast growth was very improved. Aliphatic series of hydrocarbon lower than C9 were not or very slightly assimilated by this yeast.Generally speaking, series of even-number hydrocarbons were more effective than those of odd-number hydrocarbons.We found that the yeast Y-3 strain reported in the previous paper1) has a diterminal oxidation system of hydrocarbon.This yeast capable of growing in mineral-salts solution with hyd...
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