使用混合乳酸细菌和酵母初始培养物生产改进的埃塞俄比亚泰吉
Ketemaw Denekew1, Fitsum Tigu1,2, Dagim Jirata Birri1
1Department of Microbial Sciences and Genetics, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa, Ethiopia.
Scientific reports
|September 29, 2025
概括
开发混合乳酸细菌 (LAB) 和酵母初始培养物显著提高了Tej.的质量和安全性. 与传统的自发发酵相比,某些组合提高了整体的可接受性.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 发酵技术的发酵技术
背景情况:
- 由于自发发酵,Tej的质量不一致.
- 开发初始培养可以提高泰吉的质量和安全性.
研究的目的:
- 开发混合乳酸细菌 (LAB) 和酵母初始培养物,用于Tej生产.
- 通过控制发酵来提高泰酒的质量和安全性.
主要方法:
- 166个LAB和193个酵母分离物的特征和分子识别.
- 评估分离物的酸,乙醇和盐耐受性.
- 在受控条件下使用四种兼容的LAB和酵母组合生产Tej.
主要成果:
- 乳糖菌 (L7) 和乳糖菌 (Saccharomyces cerevisiae) (Y4) 的乙醇耐受性更强.
- 乳酸菌 (L8) 和乳酸菌 (Y2) 的最佳生长温度为35°C.
- 由L. paracasei (L6) 和S. cerevisiae (Y6) 生产的Tej获得了最高的整体可接受性 (4.15 ± 0.47).
结论:
- 混合LAB和酵母初始培养可以显著改善Tej属性.
- 使用精选的起始培养进行受控发酵,为自发发酵提供了可行的替代方案.
- 对特定微生物相互作用的进一步研究可以优化泰生产.
相关概念视频
Fermentation
128.7K
Most eukaryotic organisms require oxygen to survive and function adequately. Such organisms produce large amounts of energy during aerobic respiration by metabolizing glucose and oxygen into carbon dioxide and water. However, most eukaryotes can generate some energy in the absence of oxygen by anaerobic metabolism.
Fermentation is a type of metabolic process that occurs in the absence of oxygen, where organic molecules such as glucose are broken down to produce energy. During this process, the...
Fermentation is a type of metabolic process that occurs in the absence of oxygen, where organic molecules such as glucose are broken down to produce energy. During this process, the...
128.7K
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
Fates of Pyruvate
10.4K
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...
10.4K


