Effect of calcium/sodium addition on rice starch-chickpea protein hydrolysate complexes: Microstructure, rheological properties and digestibility

In the present study, we investigated for the first time the effects of different concentration ranges (0–2 %, w/w) of CaCl2 and NaCl on the microstructure, physicochemical properties and digestibility of rice starch-chickpea protein hydrolysate (RS-CPH) complexes. The results showed that CaCl2 (0–1...

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Main Authors: Cuiping Han, Zhuojia Lv, Yujie Duan, Junfang Zhang, Qingxin Guo
Format: Article
Language:English
Published: Elsevier 2025-05-01
Series:Food Chemistry: X
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590157525003839
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author Cuiping Han
Zhuojia Lv
Yujie Duan
Junfang Zhang
Qingxin Guo
author_facet Cuiping Han
Zhuojia Lv
Yujie Duan
Junfang Zhang
Qingxin Guo
author_sort Cuiping Han
collection DOAJ
description In the present study, we investigated for the first time the effects of different concentration ranges (0–2 %, w/w) of CaCl2 and NaCl on the microstructure, physicochemical properties and digestibility of rice starch-chickpea protein hydrolysate (RS-CPH) complexes. The results showed that CaCl2 (0–1.5 %, w/w) and NaCl (0–1 %, w/w) enhanced the hydrogen bonding interactions between RS and CPH. The CLSM images visualized that the addition of salt resulted in a more uniform distribution of CPH in the RS matrix. However, the XRD results showed a decrease in the diffraction intensity of the complexes, implying an increase in the amorphous region of the complexes. In addition, 1.5 % (w/w) CaCl2 and 1 % (w/w) NaCl reduced the rapidly digestible starch content of the complexes to 36.63 % and 37.20 %, respectively. These results highlight the innovative application of salt modulation in the RS-CPH system and offer a theoretical foundation for developing functional foods with controlled starch digestibility.
format Article
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institution Kabale University
issn 2590-1575
language English
publishDate 2025-05-01
publisher Elsevier
record_format Article
series Food Chemistry: X
spelling doaj-art-98e9c2ca21cc48ff936bd6f239f45a622025-08-20T03:53:47ZengElsevierFood Chemistry: X2590-15752025-05-012810253610.1016/j.fochx.2025.102536Effect of calcium/sodium addition on rice starch-chickpea protein hydrolysate complexes: Microstructure, rheological properties and digestibilityCuiping Han0Zhuojia Lv1Yujie Duan2Junfang Zhang3Qingxin Guo4Corresponding author.; College of Food Science, Northeast Agricultural University, Harbin 150030, ChinaCollege of Food Science, Northeast Agricultural University, Harbin 150030, ChinaCollege of Food Science, Northeast Agricultural University, Harbin 150030, ChinaCollege of Food Science, Northeast Agricultural University, Harbin 150030, ChinaCollege of Food Science, Northeast Agricultural University, Harbin 150030, ChinaIn the present study, we investigated for the first time the effects of different concentration ranges (0–2 %, w/w) of CaCl2 and NaCl on the microstructure, physicochemical properties and digestibility of rice starch-chickpea protein hydrolysate (RS-CPH) complexes. The results showed that CaCl2 (0–1.5 %, w/w) and NaCl (0–1 %, w/w) enhanced the hydrogen bonding interactions between RS and CPH. The CLSM images visualized that the addition of salt resulted in a more uniform distribution of CPH in the RS matrix. However, the XRD results showed a decrease in the diffraction intensity of the complexes, implying an increase in the amorphous region of the complexes. In addition, 1.5 % (w/w) CaCl2 and 1 % (w/w) NaCl reduced the rapidly digestible starch content of the complexes to 36.63 % and 37.20 %, respectively. These results highlight the innovative application of salt modulation in the RS-CPH system and offer a theoretical foundation for developing functional foods with controlled starch digestibility.http://www.sciencedirect.com/science/article/pii/S2590157525003839Rice starchChickpea protein hydrolysateCalcium chlorideSodium chloride
spellingShingle Cuiping Han
Zhuojia Lv
Yujie Duan
Junfang Zhang
Qingxin Guo
Effect of calcium/sodium addition on rice starch-chickpea protein hydrolysate complexes: Microstructure, rheological properties and digestibility
Food Chemistry: X
Rice starch
Chickpea protein hydrolysate
Calcium chloride
Sodium chloride
title Effect of calcium/sodium addition on rice starch-chickpea protein hydrolysate complexes: Microstructure, rheological properties and digestibility
title_full Effect of calcium/sodium addition on rice starch-chickpea protein hydrolysate complexes: Microstructure, rheological properties and digestibility
title_fullStr Effect of calcium/sodium addition on rice starch-chickpea protein hydrolysate complexes: Microstructure, rheological properties and digestibility
title_full_unstemmed Effect of calcium/sodium addition on rice starch-chickpea protein hydrolysate complexes: Microstructure, rheological properties and digestibility
title_short Effect of calcium/sodium addition on rice starch-chickpea protein hydrolysate complexes: Microstructure, rheological properties and digestibility
title_sort effect of calcium sodium addition on rice starch chickpea protein hydrolysate complexes microstructure rheological properties and digestibility
topic Rice starch
Chickpea protein hydrolysate
Calcium chloride
Sodium chloride
url http://www.sciencedirect.com/science/article/pii/S2590157525003839
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AT yujieduan effectofcalciumsodiumadditiononricestarchchickpeaproteinhydrolysatecomplexesmicrostructurerheologicalpropertiesanddigestibility
AT junfangzhang effectofcalciumsodiumadditiononricestarchchickpeaproteinhydrolysatecomplexesmicrostructurerheologicalpropertiesanddigestibility
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