Comprehensive assessment of these
treatments is conducive to processing optimization. In most
cases, it was more difficult to reduce soy odor in black soymilk
than in yellow soymilk. Even if the combination of hot grinding
and two-phase UHT treatments was used, it was not possible to
make some odor compounds below their extremely low sensory
threshold level. Autooxidation of polyunsaturated fatty acids is a
significant factor for consideration in the design of processes to reduce soy odor in soymilk.