Author, as appears in the article.: Torres-Fuentes, C; Alaiz, M; Vioque, J
Department: Bioquímica i Biotecnologia
URV's Author/s: Torres Fuentes, Cristina
Keywords: Protein hydrolysate Pepsin Pancreatin Chickpea Chelating peptides pepsin pancreatin chickpea chelating peptides
Abstract: A chickpea protein hydrolysate produced with pepsin and pancreatin was used for the affinity purification of chickpea chelating peptides. Three chelating peptide fractions were obtained after affinity chromatography with immobilised copper. These peptide fractions showed a higher chelating activity and histidine contents than the original protein hydrolysate. Chelating activity was positively correlated with the histidine content of the purified fractions. Different subfractions were also obtained after gel filtration chromatography from the affinity purified peptide fractions. Some of these subfractions showed a higher chelating activity and histidine contents than the original fractions. These results suggest that a combination of high His contents, around 20-30%, and small peptide size provide the best chelating activities. Thus sequential purification with affinity and gel filtration chromatography is a useful procedure for the purification of chickpea peptides with high chelating activity. These results show that a range of chelating peptides are generated during digestion of the chickpea proteins that, after metal chelation, may prevent the generation of reactive oxygen species (ROS) and favour metal absorption. © 2011 Elsevier Ltd. All rights reserved.
Thematic Areas: Zootecnia / recursos pesqueiros Saúde coletiva Química Odontología Nutrition & dietetics Nutrição Medicine (miscellaneous) Medicina veterinaria Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Interdisciplinar Geociências Food science & technology Food science Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Enfermagem Educação física Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, applied Biotecnología Biodiversidade Astronomia / física Analytical chemistry Administração pública e de empresas, ciências contábeis e turismo
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 03088146
Author's mail: cristina.torres@urv.cat
Author identifier: 0000-0002-2917-6910
Record's date: 2024-02-11
Papper version: info:eu-repo/semantics/submittedVersion
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0308814611006698?via%3Dihub
Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Food Chemistry. 129 (2): 485-490
APA: Torres-Fuentes, C; Alaiz, M; Vioque, J (2011). Affinity purification and characterisation of chelating peptides from chickpea protein hydrolysates. Food Chemistry, 129(2), 485-490. DOI: 10.1016/j.foodchem.2011.04.103
Article's DOI: 10.1016/j.foodchem.2011.04.103
Entity: Universitat Rovira i Virgili
Journal publication year: 2011
Publication Type: Journal Publications
Repositori URV