Antioxidant Phenolic Compounds of Cassava (Manihot esculenta) from Hainan

Molecules

Bo Yi¹  Lifei Hu¹  Wenli Mei¹  Kaibing Zhou¹  Hui Wang¹  Ying Luo¹  Xiaoyi Wei¹ 

[1]¹Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou 510650, China

关键词: Manihot esculenta;    isolation;    phenolic compounds;    DPPH;    ABTS;    antioxidant activity;   

DOI  :  10.3390/molecules161210157

来源: mdpi

【 摘 要 】

An activity-directed fractionation and purification process was used to isolate antioxidant components from cassava stems produced in Hainan. The ethyl acetate and n-butanol fractions showed greater DPPH˙and ABTS·⁺ scavenging activities than other fractions. The ethyl acetate fraction was subjected to column chromatography, to yield ten phenolic compounds: Coniferaldehyde (1), isovanillin (2), 6-deoxyjacareubin (3), scopoletin (4), syringaldehyde (5), pinoresinol (6), p-coumaric acid (7), ficusol (8), balanophonin (9) and ethamivan (10), which possess significant antioxidant activities. The relative order of DPPH· scavenging capacity for these compounds was ascorbic acid (reference) > 6 > 1 > 8 > 10 > 9 > 3 > 4 > 7 > 5 > 2, and that of ABTS·⁺ scavenging capacity was 5 > 7 > 1 > 10 > 4 > 6 > 8 > 2 > Trolox (reference compound) > 3 > 9. The results showed that these phenolic compounds contributed to the antioxidant activity of cassava.

【 授权许可】

CC BY   
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