使用紫外线C (UV-C) 辐射提高原牛奶质量:微生物和脂质过氧化研究
Davids Makararpong1, Supawan Tantayanon2, Chupun Gowanit3
1Research Unit of Data Innovation for Livestock, Department of Veterinary Medicine, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.
Food science of animal resources
|May 20, 2024
概括
紫外线C (UV-C) 照射有效降低微生物负载,并防止原牛奶中的脂质过氧化. 这种UV-C处理提高了牛奶的质量,提供了一个有前途的预处理方法.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 乳制品技术 乳制品技术
背景情况:
- 生牛奶的质量受到微生物破坏和脂质过氧化的影响.
- 需要有效的方法来减少微生物负载,防止生牛奶的氧化.
研究的目的:
- 评估紫外线C (UV-C) 辐射作为原牛奶预处理的疗效.
- 评估紫外线对微生物群体和脂质过氧化的影响.
主要方法:
- 生牛奶样本根据细菌负载 (低,中,高) 分类.
- 牛奶使用144W薄膜UV-C反应器以3L/分钟的速度处理.
- 在治疗前和治疗后测量了细菌计数和脂质过氧化.
主要成果:
- 紫外线治疗显著降低了总细菌数量,特别是在高和中等负载样本中.
- coliforms 显示出比凝结酶负型葡萄球菌和乳酸细菌更高的减少效率.
- 与巴氏化或未经处理的牛奶相比,UV-C处理的牛奶的脂质过氧化显著降低.
结论:
- 紫外线辐射是一种可行的原牛奶预处理方法,可以减少微生物污染.
- 该技术有效地抑制脂质过氧化,保持牛奶质量.
- 紫外线为提高原牛奶的保质期和安全性提供了一种有希望的方法.
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