Biochemical and functional properties of sardinella (Sardinella aurita) by-product hydrolysates

Fish protein hydrolysates (FPHs) with different degrees of hydrolysis (DH of 6.62, 9.31 and 10.16) were prepared from heads and viscera of sardinella (Sardinella aurita) by treatment with Alcalase®. The liquid hydrolysates were spray dried. All spray dried by-product hydrolysates contained 73 to 75...

Full description

Permalink: http://skupni.nsk.hr/Record/nsk.NSK01000693556/Details
Matična publikacija: Food technology and biotechnology
45 (2007), 2 ; str. 187-194
Glavni autor: Souissi, Nabil (-)
Ostali autori: Bougatef, Ali (-), Triki-Ellouz, Yousra, Nasri, Moncef
Vrsta građe: Članak
Jezik: eng
Predmet:
Online pristup: Digitalni arhiv mrežnih publikacija
LEADER 02183caa a2200301 ir4500
001 NSK01000693556
003 HR-ZaNSK
005 20111229105738.0
007 ta
008 090312s2007 ci ||| ||eng
035 |9 (HR-ZaNSK)696034 
035 |a (HR-ZaNSK)000693556 
040 |a HR-ZaNSK  |b hrv  |c HR-ZaNSK  |e ppiak 
042 |a croatica 
080 |a 59  |2 MRF 1998. 
100 1 |a Souissi, Nabil 
245 1 0 |a Biochemical and functional properties of sardinella (Sardinella aurita) by-product hydrolysates /  |c Nabil Souissi, Ali Bougatef, Yousra Triki-Ellouz and Moncef Nasri. 
300 |b Ilustr. 
504 |a Bibliografija: 47 jed 
520 |a Fish protein hydrolysates (FPHs) with different degrees of hydrolysis (DH of 6.62, 9.31 and 10.16) were prepared from heads and viscera of sardinella (Sardinella aurita) by treatment with Alcalase®. The liquid hydrolysates were spray dried. All spray dried by-product hydrolysates contained 73 to 75 % of proteins and low content of lipids. Reversed-phase HPLC profiles showed that low DH hydrolysates contained high hydrophobic peptides and the extent of hydrolysis resulted in an increase of fish hydrophilic peptides. Some functional properties of FPHs were assessed and compared with those of casein or the undigested sardinella protein. Solubility increased while emulsifying capacity and whippability decreased with the increase in the degree of hydrolysis. The product, with a DH of 10.16 %, had an excellent solubility (100 %) over a pH range of 6.0–10.0. The antioxidant activity of the hydrolysates was also tested. All FPHs exhibited more than 50 % inhibition of linoleic acid peroxidation. The antioxidant activity of FPH with 10.16 % DH was about 73 % of that of a-tocopherol, a natural antioxidative agent 
653 |a Srdela  |a Karakteristike 
700 1 |a Bougatef, Ali 
700 1 |a Triki-Ellouz, Yousra 
700 1 |a Nasri, Moncef 
773 0 |t Food technology and biotechnology  |x 1330-9862  |g 45 (2007), 2 ; str. 187-194  |w nsk.(HR-ZaNSK)000174173 
981 |b B11/07 
998 |a rado090312  |c rpeo111229 
856 4 2 |u http://damp.nsk.hr/index.php?show=archive&idpublication=401  |y Digitalni arhiv mrežnih publikacija