Binding of β-carotene to whey proteins: Multi-spectroscopic techniques and docking studies.


Journal

Food chemistry
ISSN: 1873-7072
Titre abrégé: Food Chem
Pays: England
ID NLM: 7702639

Informations de publication

Date de publication:
30 Mar 2019
Historique:
received: 16 05 2018
revised: 10 10 2018
accepted: 10 10 2018
entrez: 4 12 2018
pubmed: 7 12 2018
medline: 19 1 2019
Statut: ppublish

Résumé

The objective of this work was to study molecular binding between β-carotene (β-C) and whey protein isolate (WPI) as a function of pH (4-9), temperature (15, 25, and 35 °C), and NaCl concentration (0-0.25 M) using spectroscopic techniques and docking studies. The fluorescence quenching data showed that binding affinity increased with pH, temperature and ionic strength. The binding was entropy driven and involved mostly hydrophobic interactions. Three major whey proteins including β-lactoglobulin (β-Lg), α-lactalbumin (α-Lac), and bovine serum albumin (BSA) were bound to β-C with overall binding constant values of 1.31 × 10

Identifiants

pubmed: 30502216
pii: S0308-8146(18)31822-3
doi: 10.1016/j.foodchem.2018.10.057
pii:
doi:

Substances chimiques

Whey Proteins 0
beta Carotene 01YAE03M7J
Sodium Chloride 451W47IQ8X

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

96-106

Informations de copyright

Copyright © 2018 Elsevier Ltd. All rights reserved.

Auteurs

Zahra Allahdad (Z)

Department of Food Science and Technology, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran. Electronic address: zahra.allahdad@mail.um.ac.ir.

Mehdi Varidi (M)

Department of Food Science and Technology, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran. Electronic address: m.varidi@um.ac.ir.

Reza Zadmard (R)

Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran. Electronic address: zadmard@ccerci.ac.ir.

Ali Akbar Saboury (AA)

Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran. Electronic address: saboury@ut.ac.ir.

Thomas Haertlé (T)

Poznań University of Life Sciences, Department of Animal Nutrition and Feed Management, ul. Wołyńska 33, 60-637 Poznań, Poland; UR 1268 Biopolymères Interactions Assemblages, INRA, 44316 Nantes Cedex 03, France. Electronic address: tom@haertle.fr.

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Classifications MeSH