乳酸生产由 Lactobacillus casei 使用一系列季节性可用的水果废物作为可持续的碳来源
Stefania Costa1, Daniela Summa2, Matteo Radice3
1Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy.
Frontiers in bioengineering and biotechnology
|August 19, 2024
概括
这项研究优化了使用水果废物和奶酪乳糖的乳酸 (LA) 生产. 一个5个循环的重复批次发酵实现了高的LA产量,证明了可持续的生物炼油方法.
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
- 可持续化学 可持续化学
背景情况:
- 乳酸 (LA) 生产依赖于不可持续的化石资源.
- 农业食品废弃物是生物加工中未充分利用的资源.
研究的目的:
- 为了优化乳酸 (LA) 通过*Lactobacillus casei*使用水果废物 (FWs) 和第二奶酪乳糖 (SCW) 的生产.
- 评估一种生物炼油工艺,以从农业食品废弃物中产生低成本的LA.
主要方法:
- 使用的水果废物 (桃子,瓜子,梨,果) 和SCW作为基板.
- 在5个循环的重复批次发酵中使用*Lactobacillus casei*以玉米液 (MSL) 作为源.
- 研究了用于增强生产的机械过和酶性水解.
主要成果:
- 在初始发酵中,总共达到180.56g/L的LA,体积生产率为0.88g/L·h.
- 在5个循环的重复批次过程中,在288小时内产生了397.1g/L的LA,达到1.32g/L·h的体积生产率.
- 证明了有效的废物利用和高的LA产量.
结论:
- 优化LA生产是可行的使用FW和SCW的组合.
- 开发的生物炼油工艺为LA制造提供了可持续和成本效益的途径.
- 强调农业食品废弃物在工业生物技术中的价值化潜力.
相关概念视频
Fates of Pyruvate
8.4K
Pyruvate is the end product of glycolysis, where glucose is oxidized to pyruvate, simultaneously reducing NAD+ to NADH. Two molecules of ATP are also produced by substrate-level phosphorylation.
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
8.4K
The Citric Acid Cycle: Overview
16.7K
In aerobic organisms, the citric acid cycle is the second stage of cellular respiration wherein molecules derived from the breakdown of carbohydrates, proteins, and fats are oxidized into carbon dioxide and energy. This process is also known as the tricarboxylic acid (TCA) cycle as the first product of the cycle, citric acid, contains three carboxyl groups in its structure. Alternatively, this cycle is also referred to as the Krebs cycle, in honor of its discoverer Sir Hans Krebs.
The citric...
The citric...
16.7K


