对中国不同海拔高度的牛奶质量有了新的见解
Wentao Qian1,2,3, Xiaobing Wang4, Hongliang Li2,3
1College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China.
Food chemistry: X
|May 31, 2024
概括
将荷尔斯坦牛引入高海拔地区会影响牛奶的生产和质量. 较高的海拔降低了牛奶产量,但增加了有益的牛奶成分,并改变了等离子体系统,影响了保存方法.
科学领域:
- 乳制品科学 乳制品科学
- 动物科学动物科学
- 高海拔生物学 高海拔生物学
背景情况:
- 荷尔斯坦牛正在引入青海-西藏高原,以提高牛奶产量.
- 不同高度对该地区牛奶质量和等离子体系统的影响尚不清楚.
研究的目的:
- 研究不同高度对生牛奶成分和等离子体系统的影响.
- 评估巴氏杀菌对高海拔地区牛奶保存的适用性.
主要方法:
- 分析海平面1600米,2700米和3800米的荷尔斯坦牛的生牛奶成分和等离子体 (PL) 系统参数.
- 评估巴氏杀菌对在不同高度收集的牛奶的影响.
主要成果:
- 随着海拔高度的增加,牛奶产量和PL活动下降.
- 牛奶成分含量,等离子素 (PLG) /PL比率,等离子素激活剂 (PA) 活性随高度增加.
- 在高海拔牛奶中,巴氏杀菌降低了PA活性,增加了PL活性,表明不适合.
结论:
- 高度显著影响荷尔斯坦牛奶的质量和青海-西藏高原的等离子体系统.
- 目前的巴氏杀菌方法可能对高海拔的牛奶不够,需要进一步研究最佳的生产和储存策略.
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