Abstract
The yellow (YP) and white (WP) sections of giant swamp taro (GST) contain 40.0g/kg and 51.5g/kg (dry wt) respectively of pure mucilage made up of D-glucose (44.95-78.85%), D-galactose (8.70-25.35%), D-mannose (3.20-10.45%), D-arabinose (2.45-5.20%) and small amounts of glucuronic acid and rhamnose. Arabinogalactan-proteins (5.30-8.83g/kg) contain mainly arabinose and galactose (in a 1:1 proportion) and also significant amounts of rhamnose, xylose, glucuronic acid and mannose. Antioxidant activity of YP was higher than those of WP while chelating ability and reducing power increased with mucilages content. Generally YP and WP showed better reducing power (1.06 ± 0.35 at 5mg/mL) than ascorbic acid (0.89 ± 0.22). WP and YP chelated ferrous ions by 20.0-76.0% and 16.4-71.0% respectively. Effective concentrations (EC50) of mucilages (WP 1.28 ± 0.05mg/mL; YP 1.42 ± 0.04mg/mL) were lower than those of citric acid (1.58 ± 0.04mg/mL). Generally mucilage from the WP and YP sections are excellent sources of chelating agents.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
