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首页> 外文会议>International Conference on Civil, Architecture and Environmental Engineering >Calcium and manganese affect ethanol fermentation by Pichia stipitis in cadmium-containing medium by inhibiting cadmium uptake
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Calcium and manganese affect ethanol fermentation by Pichia stipitis in cadmium-containing medium by inhibiting cadmium uptake

机译：通过抑制镉吸收，钙和锰通过抑制镉的培养基中的含镉培养基的乙醇发酵

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摘要

In this study, the effect of Cadmium (Cd) on ethanol fermentation by Pichia stipitis was investigated. P stipitis was sensitive to Cd, which reduced cell growth and diminished ethanol production. The inhibitory effect of Cd on ethanol fermentation decreased upon the addition of Calcium (Ca) and Manganese (Mn); the role of Mn was less significant compared to that of Ca. These results correlated with the inhibitory effect of the metals on the uptake of Cd by P. stipitis, with Ca having a greater effect on the uptake of Cd than Mn. However, Mn could also increase the inhibitory effect of Ca on the uptake of Cd. Simultaneous addition of both Ca and Mn lowered cellular Cd level and resulted in a greater degree of fermentation, demonstrating that this treatment can be used to improve ethanol production from Cd-contaminated biomass.
机译：在这项研究中，研究了镉（CD）对Pichia稳定炎乙醇发酵的影响。 P稳定炎对Cd敏感，降低细胞生长和降低乙醇生产。加入钙（Ca）和锰（Mn）时，Cd对乙醇发酵的抑制作用降低;与CA相比，Mn的作用较小。这些结果与金属对稳定性对CD摄取的抑制作用相关联，CA对CD的摄取产生了更大的影响。然而，Mn也可以增加Ca对Cd摄取的抑制作用。同时添加Ca和Mn降低的细胞Cd水平并导致更大程度的发酵，证明该处理可用于改善来自CD污染的生物质的乙醇产生。

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