Recent advances in the application of microbial transglutaminase crosslinking in cheese and ice cream products: A review
2018
Taghi Gharibzahedi, Seyed Mohammad | Koubaa, Mohamed | Barba, Francisco J. | Greiner, Ralf | George, Saji | Roohinejad, Shahin
Microbial transglutaminase (MTGase) has been currently utilized to form new food structures and matrices with high physicochemical stability. Incorporation of this multi-functional enzyme into structural composition of milk protein-based products, such as cheese and ice cream, can not only be a successful strategy to improve their nutritional and technological characteristics through intramolecular cross-linking, but also to reduce the production cost by decreasing fat and stabilizer contents. The recent research developments and promising results of MTGase application in producing functional formulations of cheese and ice cream with higher quality characteristics are reviewed. New interesting insights and future perspectives are also presented. The addition of MTGase to cheese led to significant improvements in moisture, yield, texture, rheology and sensory properties, without changes in the chemical composition. Furthermore, pH value of ice cream is not affected by the MTGase treatment. Compared to untreated ice creams, application of MTGase significantly promotes consistency, fat destabilization, overrun and organoleptic acceptance, while a substantial reduction in firmness and melting rate of samples was observed. The addition of MTGase to cheese and ice cream-milk provides reinforcement to the protein matrix and can be considered as a novel additive for improving the physicochemical and organoleptic properties of final products.
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