Journal
JOURNAL OF DAIRY SCIENCE
Volume 104, Issue 2, Pages 1262-1275Publisher
ELSEVIER SCIENCE INC
DOI: 10.3168/jds.2020-19038
Keywords
acid whey; health benefit; industrial trends; composition
Funding
- Parker Endowment at Ohio State University, Columbus [00100]
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In recent years, the production of acid whey has increased due to a growing demand for Greek yogurt and acid-coagulated cheeses, leading to an increase in research on sustainable applications. Both academia and industry are exploring different ways to utilize acid whey, with a focus on its potential health benefits in the future.
In recent years, acid whey production has increased due to a growing dernand for Greek yogurt and acid-coagulated cheeses. Acid whey is a dairy by-product for which the industry has long struggled to find a sustainable application. Bulk amounts of acid whey associated with the dairy industry have led to increasing research on ways to valorize it. Industry players are finding ways to use acid whey on-site with ultrafiltration techniques and biodigesters, to reduce transportation costs and provide energy for the facility. Academia has sought to further investigate practical uses and benefits of this by-product. Although modern research has shown many other possible applications for acid whey, no comprehensive review yet exists about its composition, utilization, and health benefits. In this review, the industrial trends, the applications and uses, and the potential health benefits associated with the consumption of acid whey are discussed. The proximal composition of acid whey is discussed in depth. In addition, the potential applications of acid whey, such as its use as a starting material in the production of fermented beverages, as growth medium for cultivation of lactic acid bacteria in replacement of commercial media, and as a substrate for the isolation of lactose and minerals, are reviewed. Finally, the potential health benefits of the major protein constituents of acid whey, bioactive phospholipids, and organic acids such as lactic acid are described. Acid whey has promising applications related to potential health benefits, ranging from antibacterial effects to cognitive development for babies to human gut health.
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