期刊
INTERNATIONAL DAIRY JOURNAL
卷 121, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.idairyj.2021.105095
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High temperature treatment of milk is used in cheese production to increase whey protein recovery and cheese yield, but can result in softer texture and inferior melting properties. Adjusting cheesemaking parameters or adding proteinases can partially mitigate these effects.
High temperature treatment of milk (HTT) at temperatures (e.g., 75-100 degrees C for 1-10 min) higher than those used in conventional pasteurisation (72 degrees C for 15-30 s) has been used in the manufacture of rennet-curd cheeses to increase the recovery of whey protein, enhance cheese yield, and/or improve the texture of reduced-fat cheese. HTT results in denaturation and interaction of denatured whey proteins with kappa-casein. The denatured whey protein/kappa-casein complexes remain with the para-kappa-casein micelle following rennet hydrolysis, and impede its fusion during gelation and syneresis of the resultant curd, to a degree that increases with severity of HTT. Consequently, cheese from HTT-milk has higher contents of moisture and denatured whey protein, is softer, and has inferior melting properties on baking or grilling. The effects of HTT can be partially mitigated by alteration of cheesemaking parameters to normalise cheese composition, and/or addition of exogenous proteinases to improve melting properties. (C) 2021 Elsevier Ltd. All rights reserved.
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