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生物工艺优化用于从纸和造纸行业侧流中生产乳酸和酸

Agata Olszewska-Widdrat¹, Charilaos Xiros², Anders Wallenius²

¹Microbiome Biotechnology Department, Leibniz Institute for Agricultural Engineering and Bioeconomy (ATB), Potsdam, Germany.

Frontiers in bioengineering and biotechnology

|June 5, 2023

概括

这项研究表明,微生物从造纸业废物中产生乳酸和酸. 这些平台化学物质对于可持续的生物经济和生物塑料生产至关重要.

科学领域:

生物技术是生物技术.
工业微生物学工业微生物学
循环经济是一个循环经济.

背景情况:

有效地生产平台化学品是生物经济的关键.
价值化工业侧流,如纸业纤维污泥,对于可持续性至关重要.
乳酸 (LA) 和酸 (SA) 是生物塑料的重要生物基单体.

研究的目的:

建立一个可持续和成本效益的LA和SA微生物生产.
为了利用纤维污泥制成有价值的平台化学品.
探索特定细菌菌株对LA和SA发酵的潜力.

主要方法:

纤维污泥的酶性水解,以产生富含葡萄糖的介质.
使用Bacillus coagulans,Actinobacillus succinogenis和Basfia succiniciproducens菌株进行水解酸的发酵.
批量发酵实验,以评估微生物生产能力.

主要成果:

从纤维污泥水解液中成功生产乳酸和酸的微生物.
乳酸生产的最高产量达到0.99 g·g−1 ,生产率为3.75 g·L−1·h−1.1.
酸生产稳定在0.77g·g-1的产量和1.16g·L-1·h-1.1的生产率.

结论:

纤维污泥是生产平台化学品LA和SA的可行和可持续原料.
这种生物工艺在循环经济原则中为工业微生物学应用提供了一个有前途的途径.
这项研究为生物化学品和生物塑料的新市场机会铺平了道路.

关键词:

生物经济是生物经济.发酵发酵发酵发酵纤维污泥中的纤维污泥化酸化剂是指化酸.乳酸乳酸是什么意思乳酸是什么意思葡萄糖酸是什么?葡萄糖酸是什么?

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