Journal
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
Volume 20, Issue 6, Pages 6057-6088Publisher
WILEY
DOI: 10.1111/1541-4337.12829
Keywords
fermented milk; particle size; production; rheology; soft matter
Categories
Funding
- AiF within the program for promoting the Industrial Collective Research (IGF) of the German Ministry of Economic Affairs and Energy (BMWi) [AiF 21545 N, 19012 N, 19688 N]
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The popularity of fat-free fermented concentrated milk products has been increasing in recent years due to greater availability and improvement in taste and texture. However, detailed examinations of how process modifications affect the final texture of these products are lacking. By reviewing the literature on these products from the perspective of fermented milk protein-based microgel particles, we can better understand the relationships between processing parameters and texture.
The popularity of fat-free fermented concentrated milk products, such as fresh cheeses and high-protein yogurt, has increased over the recent years, attributed to greater availability and improvements in taste and texture. These improvements have been achieved through modifications and new developments in processing technologies, for example, higher heat treatment intensities and incorporating different membrane filtration technologies. Though numerous processing parameters are discussed in the literature, as well as reasons behind the developments, detailed examinations of how process modifications affect the final textural attributes of these products are lacking. To draw links between processing parameters and texture, we review the literature on fat-free fermented concentrated milk products from the perspective of fermented milk protein-based microgel particles as the basic structural unit. At each main processing step, relationships between process parameters, micro- and macrostructural and sensory (textural) properties are discussed.An overview of particle characteristics that drive structural changes at each processing step is developed in relation to textural characteristics. Using this approach of assessing relationships between structural characteristics of concentrated dispersions of fat-free fermented milk protein-based microgel particles and processing parameters provides a basic context for the selection of optimal parameters to achieve a desired texture.
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