Affiliation:
1. Department of Food Engineering , Atatürk University, Faculty of Agriculture , 25240 , Erzurum , Türkiye
Abstract
Abstract
In the present study, aroma components, textural, rheological and sensory qualities of yogurts produced using YC-350 and ABT-2 starter cultures and combinations of goat/cow milk were investigated during the storage period. For this purpose, aroma components were analyzed by GC-MS, textural analyses by TA.XTplus Texture Analyzer and rheological analyses by Anton Paar MCR 102 rheometer. The effects of goat/cow milk combinations and variety of starter culture on aroma components, textural, rheological and sensory properties of yogurt samples were found significant (p < 0.01). Also, the storage period significantly (p < 0.01) affected all parameters tested except cohesiveness, resilience, and appearance. While it was found that the use of cow milk in the experimental yogurt samples increased the acetaldehyde content, it was found that it had varying effects on the diacetyl content, acetoin content, and textural and rheological analysis parameters. It was determined that the content of diacetyl and acetoin reduced with the progression of the storage times. In the sensory evaluations, the use of goat milk had positive effects on the parameters of appearance and consistency by spoon, and the use of probiotic culture (ABT-2) had positive effects on the parameters of consistency by mouth and overall acceptability.
Subject
Engineering (miscellaneous),Food Science,Biotechnology
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