利用植物衍生乳酸细菌,有效地将酒厂的废谷物生物转化为乙
Anders Peter Wätjen1, Süleyman Øzmerih1, Radhakrishna Shetty1
1National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark.
International journal of food microbiology
|September 24, 2023
概括
酒厂的废谷物 (BSG) 可以通过乳酸细菌 (LAB) 转化为风味分子乙. 莱可诺斯托克伪体杆菌有效地从BSG中产生乙,提供可扩展的食品添加剂.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 酒厂的消耗谷物 (BSG) 是一种丰富,营养丰富,低成本的工业副流,有可能用于人类食品应用.
- 乙是一种有价值的风味分子,在食品工业中具有潜在的应用.
- 探索BSG的生物转化潜力可以提高其价值并减少浪费.
研究的目的:
- 为了研究各种乳酸细菌 (LAB) 在从液体BSG提取物中产生乙的有效性.
- 为食品应用确定能够有效地将BSG糖转化为乙的LAB物种.
- 评估使用BSG的氨酸生产的可扩展性和条件.
主要方法:
- 在液体BSG提取物中培养选定的LAB物种 (Leuconostoc,Lactobacillus,Lactococcus).
- 乙生产量化和副产品分析.
- 优化生产条件 (如pH值) 和生物反应器中的可扩展性测试.
主要成果:
- 所有测试的LAB物种都将BSG糖转化为乙,生产水平存在显著差异.
- 莱可诺斯托克伪体类药物表现出最高的乙标位和最快的糖消耗,其中乙酸盐是主要的副产品.
- 乳球菌 (Lactococcus lactis) 的马尔托斯利用率有限,不适合完全转化为BSG糖.
- 莱昂公司的乙胺生产. 伪体化物是依赖pH的,可以从实验室瓶到1L生物反应器进行扩展.
结论:
- 莱可诺斯托克 (Leuconostoc pseudomesenteroides) 是一种高效且可扩展的生物体,用于将BSG生物转化为乙.
- 这个过程提供了一种可持续的方法,可以从主要的工业副产品中生产出安全的,富含乙的食品添加剂.
- 这些发现扩大了BSG在人类食品行业的利用可能性.
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