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Structural elucidation and in vitro antioxidant activities of a new heteropolysaccharide from Litchi chinensis.
Structural elucidation and in vitro antioxidant activities of a new heteropolysaccharide from Litchi chinensis.
- Source :
-
Drug Discoveries & Therapeutics . Apr2015, Vol. 9 Issue 2, p116-122. 7p. - Publication Year :
- 2015
-
Abstract
- Two polysaccharides, LCP70S-1 and LCP70W, were isolated from the pulp tissues of Litchi chinensis by anion-exchange chromatography and gel-filtration chromatography, while the structure of LCP70S-1 was elucidated and its physico-chemical properties was analyzed. The results demonstrated that LCP70S-1 is composed of L-rhamnose, L-arabinose and D-galactose in the ratio of 1.06:6.39:4.21, and the main chain of the heteropolysaccharide possess (1→3,6)-linked galactopyranosyl branches at O-6. The three branches consist of (1→3)-linked rhamnopyranosyl residues, (1→3,6)-linked galactopyranosyl and (1→5)-linked arabinopyranosyl residues, and terminated with (1→)-linked arabinopyranosyl residues, respectively. The two polysaccharides were further evaluated with 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activities and their reducing power in vitro. The results showed that LCP70W and LCP70S-1 possessed significant antioxidant activities, especially for LCP70S-1. As such, LCP70S-1 could potentially serve as an antioxidant and would value further study for human healthcare. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 18817831
- Volume :
- 9
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Drug Discoveries & Therapeutics
- Publication Type :
- Academic Journal
- Accession number :
- 102774049
- Full Text :
- https://doi.org/10.5582/ddt.2015.01022