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Antioxidant phenolic compounds of cassava (Manihot esculenta) from Hainan.
- Source :
-
Molecules (Basel, Switzerland) [Molecules] 2011 Dec 07; Vol. 16 (12), pp. 10157-67. Date of Electronic Publication: 2011 Dec 07. - Publication Year :
- 2011
-
Abstract
- 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 DPPHË™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.
- Subjects :
- Antioxidants chemistry
Antioxidants isolation & purification
Benzothiazoles metabolism
Biphenyl Compounds metabolism
Chemical Fractionation
China
Chromatography
Free Radical Scavengers metabolism
Phenols chemistry
Phenols isolation & purification
Picrates metabolism
Plant Extracts isolation & purification
Plant Extracts pharmacology
Plant Stems chemistry
Sulfonic Acids metabolism
Antioxidants pharmacology
Manihot chemistry
Phenols pharmacology
Subjects
Details
- Language :
- English
- ISSN :
- 1420-3049
- Volume :
- 16
- Issue :
- 12
- Database :
- MEDLINE
- Journal :
- Molecules (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 22157579
- Full Text :
- https://doi.org/10.3390/molecules161210157