益生菌巧克力乳制品甜点的欧姆化及其质量属性
Gabriela R A Silva1, Wanessa P da Silva1, Elson R Tavares Filho1
1Fluminense Federal University (UFF), Faculty of Veterinary, 24230-340 Niterói, Rio de Janeiro, Brazil.
Food research international (Ottawa, Ont.)
|November 22, 2024
概括
欧米加热 (OH) 显示出益生菌乳制品甜点的前景,保持与巴氏杀菌类似的质量. 在OH加工中,较高的电场提供了可比或改进的物理化学和微生物特性.
科学领域:
- 食品科学与技术 食品科学与技术
- 乳制品加工 乳制品加工
- 微生物学 微生物学
背景情况:
- 传统的巴氏杀菌是乳制品的标准.
- 益生菌乳制品需要仔细加工,以保持生存能力和质量.
- 欧米加热 (OH) 是一种新兴的替代加工技术.
研究的目的:
- 为了比较传统的巴氏杀菌与在各种电场下的欧姆加热 (OH).
- 在28天内评估OH对益生菌乳制品甜点质量的影响.
- 评估物理化学,微生物学,感官和挥发性化合物的变化.
主要方法:
- 益生菌巧克力乳制品甜点经过巴氏消毒或OH (12-24V/cm) 处理.
- 分析了物理化学 (pH,合成,稳定性,质),微生物学 (益生菌活力) 和感官特性.
- 挥发性化合物在28天的储存期内进行了分析.
主要成果:
- 在20和24V/cm的OH下,大多数参数的结果与巴氏杀菌相当.
- 一些参数显示高OH电场的非显著差异或改进.
- 感官分析表明了纹理差异,巴氏化样品被认为是比较奶油和坚固的.
结论:
- 欧米加热,特别是在更高的电场,是对益生菌乳制品甜点的巴氏杀菌的可行的替代方案.
- OH加工可以保持或提高产品质量和益生菌活力.
- 这项技术有可能在功能性乳制品制造中得到常规应用.
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