OL77 增强了麦 (Avena sativa) 在寒冷条件下的料发酵
Xin Liu1, Guiqin Zhao1, Jie Bai1
1College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China.
Microorganisms
|October 29, 2025
概括
耐寒的Pediococcus pentosaceus OL77有效地改善了麦料发酵和营养物质的保存. 这种细菌注射剂在低温环境中为化物生产提供了一个实用的解决方案.
科学领域:
- 农业科学 农业科学
- 微生物学 微生物学
- 动物营养 动物营养
背景情况:
- 低温化料往往导致低于最佳的发酵和显著的营养物质降解.
- 有效的料保存对于动物料质量至关重要,特别是在寒冷的气候中.
研究的目的:
- 为了评估耐寒Pediococcus pentosaceus OL77菌株作为麦料的料注入剂的有效性.
- 评估OL77对低温条件下的发酵参数,微生物动力学和营养物质保存的影响.
主要方法:
- 麦料与Pediococcus pentosaceus OL77接种或不接种 (1 × 10^5 cfu/g新鲜物质) 进行了封装.
- 在90天后评估了料质量,测量了乳酸,pH,水溶性碳水化合物 (WSC) 和原蛋白 (CP) 等参数.
- 分析了微生物社区的组成和功能代谢途径.
主要成果:
- 与对照 (30.51 g/kg DM和pH4.443) 相比,OL77处理的料具有显著更高的乳酸含量 (45.83 g/kg DM) 和较低的pH值 (3.88).
- 在OL77治疗组中,WSC (64.68 vs 47.60 g/kg DM) 和CP (89.26 vs 65.52 g/kg DM) 的保存显著改善.
- 微生物分析证实Pediococcus殖民加速,细菌多样性减少,发酵稳定性更快,预计碳水化合物和能量代谢会得到改善.
结论:
- Pediococcus pentosaceus OL77是一种高效的注射剂,可提高麦料的发酵质量和营养保存,特别是在低温条件下.
- 使用OL77提供了一种可行的策略,以提高冷地区的料生产效率和料质量.
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