Gel formation mechanism and gel properties controlled by Ca2+ in chia seed mucilage and model substances

• Published in: Journal of plant nutrition and soil science Vol. 182; no. 1; pp. 92 - 103
• Main Authors: Brax, Mathilde, Schaumann, Gabriele Ellen, Diehl, Dörte
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.02.2019
• Subjects: biohydrogel; Calcium; Calcium ions; cation–polymer interactions; Chain entanglement; crosslinking; electrostatic interactions; Electrostatic properties; Esterification; Gels; Ionic interactions; Moisture content; Mucilage; mucilage model substance; mucilages; Pectin; pectins; Polygalacturonic acid; Polymers; rhizosphere; Salvia columbariae; Seeds; Soil properties; Uronic acid; uronic acids; Water content; water mobility

Polygalacturonic acid (PGA) is considered as a model substance for mucilage to study mucilage–soil interactions, assuming that the gel formation mechanism of mucilage is comparable to the one of PGA. However, some studies question the accepted hypothesis, which states that, like for PGA, this mechan...