芳香酵母:咖啡发酵中的相互作用和影响 香味配置文件
Xin Hui Chin1, Sherilyn Ho1, Geraldine Chan1
1Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology, and Research (A*STAR), 31 Biopolis Way, Level 6, Nanos, Singapore 138669, Republic of Singapore.
Journal of agricultural and food chemistry
|June 13, 2023
概括
非传统的酵母和乳酸细菌会影响咖啡发酵的香味. 研究人员使用煮熟的绿豆提取物来研究微生物相互作用,并开发不同风味配置的初始培养物.
科学领域:
- 微生物学 微生物学
- 食品科学 食品科学 食品科学
- 发酵技术的发酵技术
背景情况:
- 热带发酵中的非传统酵母 (如咖啡,可可) 影响香味.
- 在农场发酵微生物联盟中的功能性作用和相互作用尚未得到充分理解.
研究的目的:
- 调查咖啡豆发酵过程中的微生物联盟和相互作用.
- 开发一种选媒介来分析这些相互作用.
- 探索开发特定咖啡风味特征的初始培养物.
主要方法:
- 开发了煮熟的绿豆提取物 (GBE) 作为选介质.
- 在GBE中培养的非传统酵母 (例如,Hanseniaspora spp.,Pichia kudriavzevii) 与Saccharomyces cerevisiae结合在一起.
- 使用酵母,S. cerevisiae和Lactococcus lactis var.构建的联盟 克雷莫里斯,比较结果与非生物性酸化的GBE.
主要成果:
- 与S. cerevisiae共同培养揭示了非传统酵母菌的菌株特异性分组和独特的挥发性有机形状.
- 乳酸细菌影响了发酵香味,pH值被确定为主要因素.
- 这项研究表明了GBE作为一种解构微生物联盟的工具的潜力.
结论:
- 煮熟的绿豆提取物有助于研究咖啡发酵中的微生物相互作用.
- pH显著调节乳酸细菌对咖啡香气的影响.
- 这项研究为开发有针对性的初始培养来控制咖啡风味概况提供了基础.
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