Identification of Phytochemical Compounds, Functional Properties and Antioxidant Activity of Germinated Purple Corn Protein Concentrate and Its Gastrointestinal Hydrolysates

Purple corn seeds germinated at 25 °C and 35 for 5 days were used to obtain purple protein concentrate (PCPC25 PCPC35). PCPC25 PCPC35 subject gastrointestinal hydrolysis. PCPC its hydrolysates evaluate their functional biological properties. Total flavonoid content (TFC), total flavonol (TFLC), anthocyanin (TAC) proanthocyanin (TAP) determined. The polyphenols flavonoids identified by UPLC-QDa. Protein solubility (PS), water oil absorption capacity (WAC OAC) antioxidant activity was evaluated the FRAP, ABTS DPPH methods. showed highest TFLC values (11,091.37 mg rutin equivalents (RE)/100 g dry weight DW), TFL presented of 7975.59 RE/100 DW. PCPCs better properties than hydrolysates. a PS 59.43%PS pH 8.0, 27.77%WAC 24.94%OAC. high activity. (570.97 µmol trolox (TE)/g DW) FRAP (772.85 TE/g DW). less active with (74.12 (59.42