Physicochemical, functional, structural, thermal characterization and α-amylase inhibition of polysaccharides from chickpea (Cicer arietinum L.) hulls

• Published in: Food science & technology Vol. 113; p. 108265
• Main Authors: Akhtar, Hafiz Muhammad Saleem, Abdin, Mohamed, Hamed, Yahya Saud, Wang, Wei, Chen, Guijie, Chen, Dan, Chen, Chunxu, Li, Wei, Mukhtar, Shanza, Zeng, Xiaoxiong
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.10.2019
• Subjects: Cicer arietinum hull; Foaming and emulsifying properties; Oil holding capacity; Polysaccharides; Water holding capacity; α-Amylase inhibition; Cicer arietinum hull; Polysaccharides; Oil holding capacity; Foaming and emulsifying properties; Water holding capacity; α-Amylase inhibition
• ISSN: 0023-6438; 1096-1127
• DOI: 10.1016/j.lwt.2019.108265

In the present study, polysaccharides (CHPS) were prepared from chickpea hulls by hot water extraction and ethanol precipitation, and the physicochemical, functional, thermal and structural characteristics of CHPS were investigated. The results revealed that CHPS was comprised of mannose, rhamnose, galacturonic acid, glucose, galactose, xylose and arabinose with molar percentages of 2.16, 2.96, 42.17, 9.87, 23.15, 6.29 and 13.38%, respectively. Functional analysis demonstrated that CHPS had good fat-binding, foaming and emulsifying properties. CHPS also exhibited good thermal stability. According to X-ray spectrum, CHPS was a semi-crystalline in nature which was also confirmed from scanning electron microscopic analysis. The solid-state spectrum of 13C NMR reflected that CHPS were complex and heterogeneous polymers. Moreover, CHPS showed favorable inhibitory activity against α-amylase. These findings indicated that CHPS could be exploited as a hypoglycemic agent or multi-purpose additive in pharmaceuticals, cosmetics and food industries. •Polysaccharides (CHPS) were isolated from chickpea hulls.•CHPS showed interesting fat-binding capacity, foaming and emulsifying characteristics.•CHPS was found semi-crystalline in nature and also showed good thermal stability.•CHPS exhibited favorable inhibition against α-amylase.•CHPS have potential to be utilized as a multi-functional additive or hypoglycemic agent.