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自适应的HAc/NaAc缓冲系统增强了从纤维素的暗发酵中产生生物的生产

Lili Dong¹, Wanqing Wang¹, Qiulan Xie¹

¹Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation, School of Environmental Science and Engineering, Hainan University, Haikou 570228, China.

Bioresource technology

|November 3, 2024

概括

一种新型的酸/酸缓冲系统在暗发酵生产 (DFHP) 过程中有效稳定pH值. 这种方法显著提高了产量和微生物活动,克服了关键的运营挑战.

科学领域:

生物技术是生物技术.
生物化学工程生物化学工程
环境科学环境科学

背景情况:

由于有机酸积累而导致的pH值下降是暗发酵生产 (DFHP) 的一个主要挑战.
由于无法控制的pH值波动,DFHP的稳定和持续运行受到阻碍.
有效的pH控制策略对于优化产量至关重要.

研究的目的:

研究一种自适应的酸/酸 (HAc/NaAc) 缓冲系统,用于DFHP中的pH值控制.
评估缓冲系统对生产产量和微生物代谢途径的影响.
为提高有机废物 DFHP 的缓冲监管策略提供见解.

主要方法:

进行了批量暗发酵生产 (DFHP) 实验.
实施了一个自适应的HAc/NaAc缓冲系统来控制发酵pH.
分析了基质度对产量的影响.
与对照组和NaOH治疗组进行了比较.

主要成果:

在发酵过程中,HAc/NaAc缓冲系统显著减缓了pH值的下降.
最大产量达到2326.25mL/L,比对照组高2.84倍.
缓冲系统增强了微生物生长,细胞酶分泌,并调节了NADH/NAD+比率.
最佳基质度低于10g/L,以获得最大产量.

结论:

HAc/NaAc缓冲系统有效地稳定了DFHP中的pH.
这一策略提高了生产产量和微生物性能.
这些发现为有机废物DFHP中的缓冲调节提供了宝贵的参考.

关键词:

纤维素是纤维素的一种.暗发酵生物生产的方法在 HAc/NaAc 的情况下.自适应的缓冲系统自适应的缓冲系统控制pH值控制pH值

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