Olasupo N A, Scott-Emuakpor M B, Ogunshola R A
Department of Botany and Microbiology, Lagos State University, Ojo, Nigeria.
Folia Microbiol (Praha). 1993;38(4):285-7. doi: 10.1007/BF02898595.
The heavy metal resistance of yeasts isolated from sugary substrates such as orange, palm wine and pineapple and identified as Saccharomyces carlsbergensis and S. cerevisiae was studied. The yeast isolates were tested against different concentrations of cadmium, copper, manganese, silver and zinc salts ranging from 1 to 20 mmol/L. Local yeasts showed resistance to 3-15 mmol/L cadmium, 18-20 copper, 16-20 manganese, 1-9 silver and 16-19 for zinc. The significance of the results is discussed in relation to the effects of heavy metals on growth of microorganisms and selection of yeasts for the brewing industry in Nigeria.
对从橙子、棕榈酒和菠萝等含糖基质中分离出来并鉴定为卡尔斯伯酵母和酿酒酵母的酵母的重金属抗性进行了研究。将分离出的酵母针对1至20 mmol/L范围内的不同浓度的镉盐、铜盐、锰盐、银盐和锌盐进行测试。本地酵母对3至15 mmol/L的镉、18至20 mmol/L的铜、16至20 mmol/L的锰、1至9 mmol/L的银以及16至19 mmol/L的锌表现出抗性。结合重金属对微生物生长的影响以及尼日利亚酿酒工业中酵母的选择对结果的意义进行了讨论。
