Calcium- and iron-chelating activity and functional properties of salmon by-product proteolysate

Autor: Phuong Thanh Nguyen, Phong Thanh Bui, Duy Thanh Le, Bao Chi Vo, Tam D. L. Vo, Minh Cao Tran, Linh Vy Truc Nguyen, Linh Thi Thuy Tran
Rok vydání: 2020
Předmět:
DOI: 10.21203/rs.3.rs-121864/v1
Popis: In this study, calcium- and iron-binding proteolysate were generated using salmon by-product. It was shown by the result that under the hydrolysis condition including Neutrase, 45 oC, pH 7, E:S proportion of 70 U/g protein and 8 h of hydrolysis, the proteolysate reached the peaks of CaBC and IBC of 220.8 ± 3.1 mgCa2+/g protein and 232.3 ± 4.7 µgFe2+/g protein, respectively. In pH from 3–8, after heating at 63 °C for 30 min or 93 °C for 30 s (i) its solubility was over 85% and remained over 65%; (ii) FCs and FSs were 1.4–4.7 and 1.8–12.8 times lower than those of albumin; (iii) EAIs and ESIs were 1.1–2.7 and 4.1–11.1 folds less than those of sodium caseinate, respectively; (iv) WHC and OHC reached 2.00 ± 0.09 mL water/g proteolysate powder and 6.47 ± 0.25 mL oil/g proteolysate powder, respectively. Moreover, the
Databáze: OpenAIRE