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Friday April 4,2025,
Effects of polyol on properties of heat-treated soybean protein isolate after spray-drying
  
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KeyWord:soybean protein isolate  polyol  heat treatment  spray-drying  solubility  functionality
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WANG Mengyun，CHEN Yeming，KONG Xiangzhen，etc  
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Abstract:
      The effects of different relative molecular weights polyols such as glycerol, xylitol and mannitol on the properties of heat-treated soybean protein isolate after spray-drying were studied. The results showed that the addition of polyol increased the solubility of heat-treated soybean protein isolate after spray-drying and the solubility improved with the increase of relative molecular weight of polyol. The sample with mannitol added had the highest increase of solubility after spray-drying, and the solubility increased by 25.12% compared with heat-treated control sample. After adding polyol, the soluble fraction of the spray-dried sample could maintain its tertiary structure to a greater degree, the surface hydrophobicity decreased, and its emulsifying ability and gel property were improved.
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