Solar Energy Research Institute, Biotechnology Branch, Golden, Colorado 80401.
Appl Environ Microbiol. 1983 Feb;45(2):598-602. doi: 10.1128/aem.45.2.598-602.1983.
The fermentation ability of a strain of Kluyveromyces fragilis, already selected for rapid lactose-fermenting capability, was improved dramatically by the addition of unsaturated fatty acids and ergosterol to the medium. The fermentation time of a 20% whey-lactose medium was decreased from over 90 h to less than 60 h. The lipids were shown to be taken up by the organism, and the effects on specific growth rate and biomass production were determined.
一株脆弱克鲁维酵母(Kluyveromyces fragilis)的发酵能力通过在培养基中添加不饱和脂肪酸和麦角固醇得到了显著提高,该酵母已被选择用于快速发酵乳糖。20%乳清乳糖培养基的发酵时间从 90 多小时减少到不到 60 小时。研究表明这些脂质被细胞吸收,并确定了它们对特定生长速率和生物量生产的影响。