评估开谷微生物群,谷物活力和发酵乳制品加工副产品的生物活性
Chloe J McGovern1, Brianda D González-Orozco1, Rafael Jiménez-Flores1
1Department of Food Science and Technology, The Ohio State University, Columbus, OH 43210.
Journal of dairy science
|February 18, 2024
概括
乳制品的副产品,如甜乳清透,显示出创造新的酒类产品的前景. 这些发酵产品具有有益的生物活性特性和微生物多样性,提供可持续的替代品.
科学领域:
- 食品科学与技术 食品科学与技术
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 乳制品加工产生的副产品包括酸乳清透酸 (AWP),奶油乳 (BM) 和甜乳清透酸 (SWP).
- 这些副产品代表了开发新型发酵乳制品,减少浪费和增加价值的潜在来源.
- ,一种传统的发酵牛奶饮料,以其独特的微生物组成和健康益处而闻名.
研究的目的:
- 调查使用乳制品加工副产品作为基质用于开谷物发酵的潜力.
- 为了比较微生物多样性,生物活性和来自不同副产品的酒类产品的物理化学性质与传统的酒.
- 在这些替代基板上发酵时,评估开谷的生存能力和特性.
主要方法:
- 在AWP,BM,SWP和SWP的发酵中添加牛奶脂肪球体成分 (SWP+MFGM) 4周.
- 用枪甲基因组学,纹理分析,活细胞计数和扫描电子显微镜评估开谷的生存能力.
- 评估生物活性,包括抗菌,抗氧化剂 (DPPH,ABTS测定),潜在的抗癌性质,以及对Caco-2细胞屏障功能的影响.
主要成果:
- 糖乳糖透剂 (SWP和SWP+MFGM) 支持强大的开谷物发酵,具有各种微生物和生物活性指标.
- 乳酸菌 (Lactobacillus kefiranofaciens) 是所有豆中最丰富的物种. 在AWP发酵过程中,Lactococcus spp.的条件低于最佳.
- 所有产品都实现了对无辜菌和大肠杆菌的6-log降低. 传统的克菲尔具有最高的整体抗氧化能力,而AWP显示出显著的DPPH活性.
- SWP和SWP+MFGM治疗增强了Caco-2细胞屏障功能 (对Cldn-1和Ocln-1基因表达的上调).
结论:
- 甜乳清透,特别是SWP+MFGM,是生产具有理想微生物和生物活性特征的酒类产品的可行和有前途的基质.
- 乳制品副产品的发酵可以产生具有显著抗菌和抗氧化特性的产品,并改善肠道屏障功能.
- 这项研究强调了将乳制品副产品提升为功能性发酵食品的潜力,为更可持续的乳制品行业做出贡献.
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