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液体卵白的物理化学和功能性质的变化通过欧米加热过程
M Balakrishnan1, A Lilly Prasanna2, A Ramalakshmi2
1Department of Food Process Engineering, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India. bala_tnau@tnau.ac.in.
欧姆加热有效消毒液体蛋白,优化电压和频率等参数. 这种方法保留了可溶性蛋白质和发泡能力等关键质量属性,为传统巴氏杀菌提供了可行的替代方案.
科学领域:
- 食品科学与技术 食品科学与技术
- 工艺工程是过程工程.
- 生物物理学的生物物理.
背景情况:
- 传统的液体蛋白消毒方法可能会影响功能性质.
- 欧米加热为快速和均加热提供了一个潜在的替代方案.
研究的目的:
- 开发和优化用于液体蛋白消毒的欧姆加热系统.
- 为了评估欧姆加热对液态蛋白的关键质量参数的影响.
主要方法:
- 一个批量反应器系统被用于液体蛋白的欧姆加热.
- 过程变量 (电压,频率,时间,波形) 通过Box-Behnken设计系统地变化和优化.
- 分析了包括加热速度,度,可溶性蛋白质,发泡能力和发泡稳定性在内的关键参数.
主要成果:
- 优化的参数 (17.93 V/cm,10 Hz, 1.6 分钟,正弦波形) 产生了19.6 °C/分钟的加热速率.
- 该工艺取得了出色的结果:度为0.01,可溶性蛋白质为98.35%,发泡能力为405.68%,发泡稳定性为31.84%.
- 粘度随着欧姆处理的蛋白的剪切率的增加而降低.
结论:
- 欧姆加热是一种有前途的技术,可以在保持其功能性质的同时对液体蛋白进行巴氏杀菌.
- 开发的模型可以预测测试过程变量范围内的结果.
- 优化的欧姆加热参数确保处理液体蛋白的高质量和理想的功能属性.
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