本土和外来微生物群的比较:乳酸生产中注射的必要性
Yuan Li1, Yueji Chen1, Zonghai Du1
1Shanghai University of Engineering Science, School of Chemistry and Chemical Engineering, Shanghai, China.
Bioresource technology
|October 5, 2025
概括
蛋缓冲剂通过优化本土微生物,有效地提高了食物废物中的乳酸生产. 这种可持续的方法避免了昂贵的外部注射,提高了有机废物的利用率.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 从食品废物中生产乳酸 (LA) 是废物回收利用和循环经济原则的关键.
- 了解食品废物发酵中的微生物相互作用至关重要,但具有挑战性.
研究的目的:
- 调查使用蛋 (EG) 缓冲剂来调节本土微生物群以有效生产LA.
- 为了阐明由EG缓冲引发的代谢途径和微生物社区转移.
主要方法:
- 用EG缓冲剂发酵食品废弃物,并与无氧污泥注射进行比较.
- 微生物群落的代谢途径分析和高通量测序.
- 关键代谢途径的基因表达分析.
主要成果:
- 使用EG缓冲器实现了高效的LA生产 (33.2±2.6gCOD/L),与污泥注射相当.
- EG缓冲器稳定了pH,并将碳流转向了LA合成.
- 增加同发酵性LA细菌 (Streptococcus,Enterococcus) 的丰富性和与糖解相关的基因的调制.
结论:
- 用EG缓冲发酵激活本地微生物群,以实现高效的LA生产.
- 外源微生物注射对于成本效益高的LA合成并不重要.
- 这种方法提供了一种可持续和经济的方法,用于从食品废物中生产乳酸.
相关概念视频
Microbial Fermentation
1.3K
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
1.3K
Microorganisms in Medicine and Therapeutics
960
Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
960
Microorganisms in Agriculture and Food industry
1.3K
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
1.3K


