Premium
Sensory Properties of Whey and Soy Proteins
Author(s) -
Russell T.A.,
Drake M.A.,
Gerard P.D.
Publication year - 2006
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1750-3841.2006.00055.x
Subject(s) - food science , mouthfeel , ingredient , soy protein , flavor , whey protein , sensory system , soy flour , sensory analysis , chemistry , biology , raw material , organic chemistry , neuroscience
Whey and soy proteins are valuable dried ingredients with applications in numerous foods. Characterization and comparison of the flavor properties of these value‐added ingredients are needed to interpret analytical flavor chemistry results and to identify specific ingredient applications and marketing strategies. The goals of this study were to develop a sensory lexicon for whey and soy proteins, and to subsequently identify and compare the descriptive sensory properties of whey and soy proteins. Consumers also filled out a survey to probe their opinions and attitudes to dairy and soy products. Twenty‐four descriptive sensory attributes were identified to evaluate appearance, flavor, and texture/mouthfeel of rehydrated proteins. Twenty‐two samples (14 whey proteins and 8 soy proteins) were selected for descriptive sensory analysis. Proteins were rehydrated (10% solids, [w/v]) and evaluated in triplicate by a highly trained sensory panel ( n = 10) trained to use the developed language. Both whey and soy proteins were differentiated using the identified language ( P < 0.05). Each protein type displayed sensory variability, but different sensory attributes distinguished whey proteins from soy proteins. Consumers ( n = 147) perceived distinct health benefits associated with dairy and soy products, respectively. These results will enhance ongoing research and product development with these nutritional and functional ingredients.