The preparation and application of hemp protein and EGCG complex
In order to investigate the effects of epigallocatechin gallate(EGCG) on hemp protein isolate(HPI) functional properties and antioxidant activity,optimal preparation conditions for HPI-EGCG complexes were determined through single-factor orthogonal experiments.The complexes'functional properties,antioxidant capacity,and potential application in plant protein beverages were evaluated.Results show that the optimal solubility (53.87±0.42％) of HPI-EGCG complexes can be achieved at pH 8,60 ℃,and 0.2 mol/L salt concentration.Compared to HPI alone,HPI-EGCG complexes exhibit improvements in emulsifying capacity,emulsion stability,DPPH and ABTS free radical scavenging rates by 110.38％,82.73％,59.44％,and 30.60％,respectively.In plant protein beverage applications,HPI-EGCG complexes demonstrate superior centrifugal precipitation rates and stability coefficients compared to soy protein isolate,and receive higher sensory evaluation scores.The study provides theoretical basis for related research of HPI-EGCG and expands the applications of HPI and EGCG in the food industry.
hemp proteinEGCGfunction characteristicsplant protein beverage
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