产生TTMP的细菌通过生物强化增强了Baijiu的总含量
Wanlue Jiang1, Xianping Qiu2, Xinyue Wei1
1College of Food and Biological Engineering, Xihua University, Food Microbiology Key Laboratory of Sichuan Province, Chengdu, 610039, PR.China.
Food microbiology
|February 14, 2025
概括
研究人员在Daqu中发现了能够产生TTMP的Bacillus菌株,这是一个关键的Baijiu风味化合物. 精选的菌株在模拟的Baijiu发酵中显著提高了TTMP和含量,提供了改善风味的潜力.
科学领域:
- 食品微生物学 食品微生物学
- 发酵科学 发酵科学
- 生物技术是生物技术.
背景情况:
- 四甲基酸 (TTMP) 对于Baijiu的味道至关重要,并为健康提供好处.
- 细菌物种是已知的TTMP生产者,但它们在强烈风味的Daqu中的作用仍未得到充分探索.
研究的目的:
- 选和识别来自强烈风味的Daqu的Bacillus菌株,具有TTMP生产能力.
- 通过模拟发酵来评估选定的Bacillus菌株对Baijiu风味的影响.
主要方法:
- 来自Daqu.的Bacillus菌株的形态和分子识别.
- 通过孤立的菌株量化TTMP的生产.
- 模拟Baijiu发酵实验,以评估风味化合物变化.
主要成果:
- 在18种选的细菌菌株中,12种显示TTMP的产生.
- 细菌亚细菌YR-5显示了最高的TTMP产量 (761.32毫克/升).
- 在模拟发酵中,选择的菌株 (YR-3,YR-5,YR-12) 显著增加了TTMP和含量.
结论:
- 达库拥有多种不同的细菌菌株,具有显著的TTMP生产潜力.
- 精选的Bacillus菌株可用于生物强化,以增强TTMP并改善Baijiu的风味.
- 这项研究为Baijiu的质量改善提供了功能性微生物.
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