Physicochemical characterization of Gracilaria chouae sulfated polysaccharides and their antioxidant potential.

Physicochemical characterization of Gracilaria chouae sulfated polysaccharides and their antioxidant potential. Int J Biol Macromol. 2019 May 09;: Authors: Khan BM, Qiu HM, Wang XF, Liu ZY, Zhang JY, Guo YJ, Chen WZ, Liu Y, Cheong KL Abstract A complete absence of the physicochemical characterization of Gracilaria chouae polysaccharides (GCP) and its corresponding bioactivities urged the need for this study. It was found that GCP is a heteropolysaccharide which exists in linear random coil conformation. It contained a sulfate content of 7.9% in addition to 52.63% total sugar content and 9.62% galacturonic acid. Galactose and 3,6-anhydrogalactose were found in a molar ratio of 1.0:0.6. Its setting and melting points were determined as 41.3 and 71.7 °C, respectively, which makes it a suitable candidate for industrial processing where further heating is required and/or where the end-product needs to have extended shelf life in hot climate. GCP demonstrated 2,2-diphenyl-1-picrylhydrazyl, 2,2'-azino-bis and hydroxyl radical scavenging activity (36.86, 27.42 and 19.07% at 3 mg·ml-1). Moreover, the results also suggested its potential use as a prebiotic due to its perceived high fermentability. PMID: 31078595 [PubMed - as supplied by publisher]
Source: International Journal of Biological Macromolecules - Category: Biochemistry Authors: Tags: Int J Biol Macromol Source Type: research