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首页> 外文期刊>African Journal of Microbiology Research >Selection of high organic chromium yielding yeast strain after space piggyback experiment and its characteristic
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Selection of high organic chromium yielding yeast strain after space piggyback experiment and its characteristic

机译：空间搭载试验后高产有机铬酵母菌株的选育及其特性。

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摘要

A high yield yeast strain with glucose tolerance factor (GTF) was screened from seven original yeast strains and seven strains mutated by spaceflight-induced mutagenesis through gradient concentration of chromium (Cr) plate cultivation and liquid fermentation cultivation with biomass of 40 g/L. By extracting glucose tolerance factor with ammonia and determining the content of Cr with flame atomic absorption spectrometry, the content of organic Cr was found to be 1296 μg/g and that of total Cr was 1926 μg/g. The dynamic relationship between other parameters and the amount of organic chromium absorbed by the yeast was also determined during fermentation.
机译：通过梯度浓度的铬（Cr）平板培养和40 g / L的生物量液体发酵培养，从7个原始酵母菌株和7个因航天诱变突变的菌株中筛选出了具有葡萄糖耐性因子（GTF）的高产酵母菌株。通过用氨水提取葡萄糖耐受因子并通过火焰原子吸收光谱法测定Cr的含量，发现有机Cr的含量为1296μg/ g，总Cr的含量为1926μg/ g。还确定了发酵过程中其他参数与酵母吸收的有机铬量之间的动态关系。

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