Instituto Superior de Investigaciones Biológicas (INSIBIO, CONICET-Universidad Nacional de Tucumán), Tucumán, Argentina.
Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Tucumán, Argentina.
J Biotechnol. 2021 Apr 10;331:14-18. doi: 10.1016/j.jbiotec.2021.03.002. Epub 2021 Mar 9.
Single cell oils (SCO) are a promising source of oils that could be exploited in different industrial areas. SCO for biodiesel production circumvents the controversy food vs. fuel, does not require large land areas for culture, and is independent of climate and seasonal variations, among other advantages in comparison to vegetable oils. In this study, a red yeast isolated from a mountain water source, identified as Rhodotorula glutinis T13, showed high potential for lipid production (40% w/w) with suitable growth parameters, yields, and fatty acids profile. Yeast lipids showed a high content of unsaturated fatty acids (56.44%; C18:1, C18:2), and the fuel properties (cetane number, iodine value, density, kinematic viscosity, etc.) of yeast oil analysed were in good agreement with international biodiesel standards. The results show that R. glutinis T13 can be used in the future as a promising microorganism for the commercial production of biodiesel.
单细胞油脂（SCO）是一种很有前途的油脂来源，可以在不同的工业领域得到利用。与植物油相比，用于生产生物柴油的 SCO 避免了“粮食与燃料之争”，不需要大面积土地进行培养，并且不受气候和季节变化的影响，具有其他诸多优势。在这项研究中，从山区水源中分离出的一株红色酵母，鉴定为 Rhodotorula glutinis T13，其具有较高的产脂潜力（40%w/w），且具有适宜的生长参数、产率和脂肪酸谱。酵母油脂的不饱和脂肪酸含量较高（56.44%；C18:1、C18:2），分析得出的酵母油的燃料特性（十六烷值、碘值、密度、运动黏度等）与国际生物柴油标准非常吻合。结果表明，R. glutinis T13 未来可作为一种有前途的微生物，用于商业生产生物柴油。
