Pectin as a Rheology Modifier: Origin, Structure, Commercial Production and Rheology

Siew Yin Chan; Wee Sim Choo; David James Young; Xian Jun Loh

doi:10.1016/j.carbpol.2016.12.033

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Pectin as a Rheology Modifier: Origin, Structure, Commercial Production and Rheology

Journal article

Open access

Peer reviewed

Pectin as a Rheology Modifier: Origin, Structure, Commercial Production and Rheology

Siew Yin Chan, Wee Sim Choo, David James Young and Xian Jun Loh

Carbohydrate Polymers, Vol.161, pp.118-139

2017

DOI: https://doi.org/10.1016/j.carbpol.2016.12.033

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Abstract

pectin

rheology modifier

hydrogels

mechanism

Pectins are a diverse family of biopolymers with an anionic polysaccharide backbone of α-1,4-linked d-galacturonic acids in common. They have been widely used as emulsifiers, gelling agents, glazing agents, stabilizers, and/or thickeners in food, pharmaceutical, personal care and polymer products. Commercial pectin is classified as high methoxy pectin (HMP) with a degree of methylation (DM) >50% and low methoxy pectin (LMP) with a DM <50%. Amidated low methoxy pectins (ALMP) can be obtained through aminolysis of HMP. HMP gels by cross-linking through hydrogen bonds and hydrophobic forces between the methyl groups, assisted by a high co-solute concentration and low pH. In contrast, LMP gels by forming ionic linkages via calcium bridges between two carboxyl groups from two different chains in close proximity, known as the 'egg-box' model. Pectin gels exhibit Newtonian behaviour at low shear rates and shear-thinning behaviour when the shear rate is increased. An overview of pectin from its origin to its physicochemical properties is presented in this review.

Details

Title: Pectin as a Rheology Modifier: Origin, Structure, Commercial Production and Rheology
Authors: Siew Yin Chan (Author) - Monash University, Malaysia
Wee Sim Choo (Author) - Monash University, Malaysia
David James Young (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Xian Jun Loh (Author) - National University of Singapore, Singapore
Publication details: Carbohydrate Polymers, Vol.161, pp.118-139
Publisher: Pergamon
Date published: 2017
DOI: 10.1016/j.carbpol.2016.12.033
ISSN: 0144-8617
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99451025402621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Chemistry, Applied; Chemistry, Organic; Polymer Science