Yuan, Qin; He, Yuan; Xiang, Pan-Yin; Huang, Yue-Jia; Cao, Zheng-Wen; Shen, Si-Wei; Zhao, Li; Zhang, Qing; Qin, Wen; Wu, Ding-Tao published the artcile< Influences of different drying methods on the structural characteristics and multiple bioactivities of polysaccharides from okra (Abelmoschus esculentus)>, Reference of 3458-28-4, the main research area is Abelmoschus polysaccharide bioactivity drying; Antioxidant activity; Binding capacity; Drying method; Enzyme inhibition; Okra polysaccharide; Structural characteristic.
In this study, in order to evaluate the influences of drying methods on the chem. structures and bioactivities of polysaccharides from okra (OPPs), four drying methods, including microwave drying at 400 W, 600 W, and 800 W, freezing drying, hot air drying, and vacuum drying, were applied to dry okra fruits. Six different OPPs were extracted from okra dried by different drying methods. Results showed that physicochem. characteristics and bioactivities of OPPs varied by different drying methods. Noticeable variations in extraction yields, mol. weights, rheol. properties, molar ratios of constituent monosaccharides, contents of uronic acids, degrees of esterification, and contents of total phenolics were observed in OPPs obtained by different drying methods. In addition, results showed that OPPs, especially OPP-H and OPP-V obtained by hot air drying and vacuum drying, resp., exhibited remarkable antioxidant activities (ABTS, DPPH, and nitric oxide radical scavenging activities, and ferric reducing antioxidant powers), strong in vitro binding capacities (fat, cholesterol, and bile acids binding capacities), and obvious inhibitory activities on α-amylase and α-glucosidase. Results suggested that the hot air and vacuum drying techniques could be appropriate drying methods before extraction of OPPs with high bioactivities for applications in the functional food and medicine industries.
International Journal of Biological Macromolecules published new progress about Abelmoschus esculentus. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Reference of 3458-28-4.
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