Article (Scientific journals)
Purification and identification of novel antioxidant peptides from enzymatic hydrolysate of chickpea (Cicer arietinum L.) protein concentrate
Ghribi, Abir Mokni; Sila, Assaâd; Przybylski, Rémi et al.
2015In Journal of Functional Foods, 12, p. 516-525
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Keywords :
Chickpea, Protein concentrate; Antioxidant activity, Peptide; Mass spectrometry
Abstract :
[en] Enzymatic hydrolysis of chickpea protein concentrate (CP) by Alcalase® and some physiochemical and antioxidant properties of the resulting hydrolysate (CPH) were characterised. CPH displayed higher antioxidant activity than CP. This hydrolysate was fractionated by size exclusion chromatography on a Sephadex G-25 into four major fractions (Fra.I, Fra.II, Fra.III, and Fra.IV). Fraction III, which exhibited the highest DPPH scavenging activity (54% at 1 mg/ml), was then fractionated by reversed-phase high performance liquid chromatography (RP-HPLC). Eleven antioxidant fractions were isolated and two peptide subfractions show antioxidant activity (P3 and P8). The P8 displayed the highest DPPH radicalscavenging activity (67%; at 200 g/ml) among these peptides subfractions. The molecular masses and amino acids sequences of the purified peptides were determined using ESIMS and ESIMS/MS, respectively. Their structures were identified as Asp-His-Gly and Val- Gly-Asp-Ile. These peptides did not show haemolytic activity towards bovine erythrocytes. The results suggest that CPH are good source of natural antioxidants.
Disciplines :
Food science
Author, co-author :
Ghribi, Abir Mokni
Sila, Assaâd
Przybylski, Rémi
Nedjar-Arroume, Naima
Makhlouf, Ines
Blecker, Christophe ;  Université de Liège - ULiège > Chimie et bio-industries > Science des alim. et formul.
Attia, Hamadi
Dhulster, Pascal
Bougatef, Ali
Besbes, Souhail
Language :
English
Title :
Purification and identification of novel antioxidant peptides from enzymatic hydrolysate of chickpea (Cicer arietinum L.) protein concentrate
Publication date :
January 2015
Journal title :
Journal of Functional Foods
ISSN :
1756-4646
eISSN :
2214-9414
Publisher :
Elsevier, Netherlands
Volume :
12
Pages :
516-525
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 February 2015

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