【摘要】 对10株酵母进行了有机溶剂耐受试验.结果发现酒精酵母比其他酵母抗非极性溶剂的能力更强.酵母对有机溶剂的抗性不仅与溶剂的极性、毒性、剂量范围有关,而且与酵母细胞膜的成分、生长培养基、温度等有关.当生长培养基中的Mg2+浓度提高2倍时,多数菌株对有机溶剂的抗性没有影响.温度对所检测酵母的生长及对溶剂的抗性都有一定的影响.更多还原

【Abstract】 In this article ten strains of yeast were chosen to test their resistance to organic solvents. The results showed that Sccharomyces cerivisiae had stronger resistance than others. The resistance of yeast to organic solvent affected by not only the polarity, toxicity and the dose of the organic solvents, but also the consistence of cell membrane, culture media and others. The resistance of the most of the strains wasn’t changed when the concentration of the 2+ in the media was increased two fold. The growth of the yeasts tested and the resistance of yeasts to organic solvents was obviously affected by temperature.更多还原