1. Effect of glycosylation with sugar beet pectin on the interfacial behaviour and emulsifying ability of coconut protein
- Author
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Hui Niu, Yongjie Zhou, Qiuping Zhong, Ming Zhang, Weijun Chen, Yong-Huan Yun, Wenxue Chen, Tian Luo, Hailing Zhang, and Haiming Chen
- Subjects
Cocos ,Glycosylation ,food.ingredient ,Pectin ,02 engineering and technology ,Biochemistry ,Viscoelasticity ,03 medical and health sciences ,chemistry.chemical_compound ,Adsorption ,food ,Structural Biology ,Surface Tension ,Centrifugation ,Particle Size ,Molecular Biology ,Elastic modulus ,Plant Proteins ,030304 developmental biology ,0303 health sciences ,biology ,Viscosity ,Chemistry ,General Medicine ,021001 nanoscience & nanotechnology ,biology.organism_classification ,Kinetics ,Chemical engineering ,Emulsifying Agents ,Emulsion ,Pectins ,Emulsions ,Sugar beet ,Beta vulgaris ,Rheology ,0210 nano-technology - Abstract
The aim of the present study was to investigate the effect of glycosylation with sugar beet pectin (SBP) on the interfacial behaviour and emulsifying ability of coconut protein (CP). The physical stabilities of the emulsions were predicted by transmission variation, droplet distribution and zeta potentials. The results showed that SBP-CP-stabilized emulsions showed better stability during centrifugation than those stabilized by CP because SBP-CP reduced the degree of variation in the CP transmission profile. The adsorption kinetics of all emulsifiers at the oil-water interface were determined to investigate the relationship between the interfacial behaviour and emulsion stability. The presence of SBP considerably reduced the adsorption rate of CP (0.698 mN/m/s1/2) and hampered the development of a highly viscoelastic network at the oil-water interface. The values of the dilatational elastic modulus (Ed = 19.477 mN/m) and dilatational viscous modulus (E = 19.719 mN/m) were approximately equal, indicating that the adsorption process was mainly dominated by elastic behaviour. Additionally, the SBP-CP interaction enhanced the dilatational property of the CP-absorbed layer.
- Published
- 2021