黑米逐步发酵提高了酸奶的凝质量:固化速率,质地,LAB分布和生命力持久性
Jiarui Zeng1, Zhiming Wang1, Guang Liu1
1Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
Food chemistry
|May 29, 2025
概括
黑米逐步发酵通过提高水容量和质地来提高酸奶的质量. 这种方法支持乳酸细菌 (LAB) 的生长,导致酸奶的生产速度更快,稳定性更好.
科学领域:
- 食品科学 食品科学 食品科学
- 发酵技术的发酵技术
- 乳制品科学 乳制品科学
背景情况:
- 酸奶的质量受到水容量 (WHC) 和质地稳定性的显著影响.
- 传统的酸奶生产可能会耗时,并且在长期保持质地方面可能面临挑战.
- 结合新的原料和发酵技术可能会改善酸奶的特性.
研究的目的:
- 为了研究黑米逐步发酵对酸奶质地质量的影响.
- 评估发酵酸奶中增强的水容量 (WHC),硬度和粘度.
- 了解黑米中释放的化合物在发酵过程中支持乳酸细菌 (LAB) 的作用.
主要方法:
- 黑米生产阶段发酵酸奶 (FBY) 和对照酸奶.
- 测量固化时间,水容 (WHC),硬度和粘度.
- 分析粉和纤维的分布,以及特定化合物的结合能量 (ρ-醇,氨酸) 与β-乳糖球蛋白.
- 应用曼特尔相关性来评估LAB分布/生命力和酸奶特性之间的关系.
主要成果:
- 与对照组相比,FBY的固化时间缩短了25.0%.
- FBY显示WHC增加了13.2%,硬度增加了53.8%.
- 在FBY中观察到增强的粘度,更详细的粉和纤维分布,以及有利的结合能.
- 逐步发酵促进了均的LAB分布和可活性,与改善的酸奶固化,WHC和质地稳定性有积极的相关性.
结论:
- 黑米逐步发酵是快速制备酸奶的有效策略.
- 这种方法显著提高了酸奶的容量,硬度和整体质地稳定性.
- 黑米中释放的食纤维和酸素作为LAB的有益载体,改善它们在发酵过程中的性能.
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