Article (Scientific journals)
Preparation of cattle bone collagen peptides-calcium chelate and its structural characterization and stability
Zhang, Hongru; Zhao, Laiyu; Shen, Qingshan et al.
2021In LWT, 144, p. 111264
Peer reviewed
 

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Keywords :
Cattle bone collagen peptides; Peptides-calcium chelate; Physicochemical properties; Structural characterizations; Stability
Abstract :
[en] In this study, cattle bone collagen peptides (CPs) were applied to prepare peptides-calcium chelate (CPs-Ca), and the physicochemical, structural properties, and stability of the CPs-Ca were characterized. The optimized preparation conditions were determined by single factor test, and the maximum calcium-chelating capacity was 42.70 ± 1.09 μg/mg. Physicochemical analysis indicated that CPs-Ca was a new substance compared with CPs. Structural analysis demonstrated that calcium ions chelated CPs via the sites of carboxyl oxygen, hydroxyl oxygen and amino nitrogen atom. Morphology analysis showed that CPs-Ca aggregated to large particles due to the crosslinking of calcium ions. According to the stability analysis, CPs-Ca was stable in thermal processing and gastrointestinal digestion. The acid environment was the major factor of CPs-Ca dissociation. The findings put forward a scientific basis for preparing a novel calcium supplement and high-value utilization of cattle bone.
Disciplines :
Chemistry
Author, co-author :
Zhang, Hongru;  Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Zhao, Laiyu;  Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Shen, Qingshan;  Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Qi, Liwei;  Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Jiang, Shan
Guo, Yujie;  Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Zhang, Chunhui;  Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Richel, Aurore  ;  Université de Liège - ULiège > Département GxABT > SMARTECH
Language :
English
Title :
Preparation of cattle bone collagen peptides-calcium chelate and its structural characterization and stability
Publication date :
2021
Journal title :
LWT
ISSN :
0023-6438
Volume :
144
Pages :
111264
Peer reviewed :
Peer reviewed
Available on ORBi :
since 16 March 2021

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