Biochemical properties of red tilapia (Oreochromis niloticus) protein hydrolysates.

Autor: Shamloo, M., Bakar, J., Mat Hashim, D., Khatib, A.
Předmět:
Zdroj: International Food Research Journal; Feb2012, Vol. 19 Issue 1, p183-188, 6p
Abstrakt: The amino-acid composition, 2, 2-Diphenyl-1-picryhydrazyl (DPPH) radical-scavenging activity, and peptide patterns of tilapia protein hydrolysates produced by the enzymatic hydrolysis of Alcalase (AH), Flavourzyme (FH) and Protamex (PH) for 5h using pH-stat method were studied. The ratio of essential amino acids to non-essential amino acids increased after hydrolysis in all samples; however, no significant differences among them were observed. AH had a highest (P < 0.05) DPPH radical-scavenging activity, but no significant difference in the DPPH between FH and PH was observed. SDS-PAGE patterns for all the hydrolysates showed significant (P < 0.05) reduction in the number and the intensity of the bands with increasing time of hydrolysis. Flavourzyme showed the lowest rate of hydrolytic activity towards the tilapia mince. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index