Department of Food Science, University of WI, Madison, WI, USA.
Department of Food Science, University of TN, Knoxville, TN, USA.
Crit Rev Biotechnol. 2024 Dec;44(8):1638-1652. doi: 10.1080/07388551.2024.2332941. Epub 2024 Apr 21.
Dairy products that are contaminated by pathogenic microorganisms through unhygienic farm practices, improper transportation, and inadequate quality control can cause foodborne illness. Furthermore, inadequate storage conditions can increase the microflora of natural spoilage, leading to rapid deterioration. Ultrasound processing is a popular technology used to improve the quality of milk products using high-frequency sound waves. It can improve food safety and shelf life by modifying milk protein and fats without negatively affecting nutritional profile and sensory properties, such as taste, texture, and flavor. Ultrasound processing is effective in eliminating pathogenic microorganisms, such as and . However, the efficiency of processing is determined by the type of microorganism, pH, and temperature of the milk product, the frequency and intensity of the applied waves, as well as the sonication time. Ultrasound processing has been established to be a safe and environmentally friendly alternative to conventional heat-based processing technologies that lead to the degradation of milk quality. There are some disadvantages to using ultrasound processing, such as the initial high cost of setting it up, the production of free radicals, the deterioration of sensory properties, and the development of off-flavors with lengthened processing times. The aim of this review is to summarize current research in the field of ultrasound processing and discuss future directions.
受不卫生的农场操作、不当运输和不足的质量控制而污染的致病微生物的奶制品会导致食源性疾病。此外，储存条件不足会增加自然变质的微生物数量，导致迅速恶化。超声处理是一种常用的技术，用于使用高频声波来改善乳制品的质量。它可以通过改变牛奶蛋白和脂肪来提高食品安全和保质期，而不会对营养状况和感官特性（如味道、质地和风味）产生负面影响。超声处理可有效消除致病性微生物，如 和 。然而，处理效率取决于微生物的类型、牛奶产品的 pH 值和温度、应用波的频率和强度以及超声处理时间。超声处理已被确立为一种安全且环保的替代传统基于热的加工技术的方法，后者会导致牛奶质量下降。使用超声处理也存在一些缺点，例如初始设置成本高、产生自由基、感官特性恶化以及处理时间延长会产生异味。本综述的目的是总结超声处理领域的当前研究，并讨论未来的方向。
