10种非酿酒酵母硫化氢产生能力及动态分析

摘要

为了分析10种非酿酒酵母产H2S动态以及与发酵速度的相关性,该研究利用亚硫酸铋琼脂平板法和醋酸铅试纸法分别分析了10种酵母在固态和液态条件下产H2S的情况,并对其H2S产生动态以及与发酵速度的相关性进行分析.结果表明,在亚硫酸铋琼脂固态平板上,7种非酿酒酵母产生H2S,而在YPD液体培养基中,10种非酿酒酵母均产生H2S,产H2S的能力差异明显,热带假丝酵母产H2S最多,且产气速度与发酵速度呈正相关.该研究结果将为非酿酒酵母的应用提供了参考依据,并为其他非酿酒酵母以及其他发酵微生物的筛选提供借鉴意义.%In order to analyze the relationship between H2S production dynamics and fermentation rate of 10 non-Saccharomyces,comparative analysis of H2S production capacity of 10 non-Saccharomyces was carried out on the bismuth sulfite agar medium and in the yeast extract peptone dextrose medium,respectively.Furthermore,their H2S production dynamic analysis and the relativity with their fermentation speed were analyzed in YPD liquid medium.The results indicated that seven non-Saccharomyces species could produce H2S on the bismuth sulfite agar medium.However,all 10 non-Saccharomyces species could produce H2S in YPD liquid medium with different producing capacities.Additionally,their H2S production capacities were positively correlative with fermentation speeds.Those results will provide references for the application of non-Saccharomyces,and for the screening of other non-Saccharomyces strains or other microorganisms.