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Identification of major phenolic compounds of Chinese water chestnut and their antioxidant activity.
- Source :
-
Molecules (Basel, Switzerland) [Molecules] 2007 Apr 25; Vol. 12 (4), pp. 842-52. Date of Electronic Publication: 2007 Apr 25. - Publication Year :
- 2007
-
Abstract
- Chinese water chestnut (CWC) is one of the most popular foods among Asian people due to its special taste and medical function. Experiments were conducted to test the antioxidant activity and then determine the major phenolic compound components present in CWC. CWC phenolic extract strongly inhibited linoleic acid oxidation and exhibited a dose-dependent free-radical scavenging activity against alpha,alpha-diphenyl-beta-picrylhydrazyl (DPPH) radicals, superoxide anions and hydroxyl radicals, which was superior to ascorbic acid and butylated hydroxytoluene (BHT), two commercial used antioxidants. Furthermore, the CWC extract was found to have a relatively higher reducing power, compared with BHT. The major phenolic compounds present in CWC tissues were extracted, purified and identified by high-performance liquid chromatograph (HPLC) as (-)-gallocatechin gallate, (-)-epicatechin gallate and (+)-catechin gallate. This study suggests that CWC tissues exhibit great potential for antioxidant activity and may be useful for their nutritional and medicinal functions.
- Subjects :
- Antioxidants pharmacology
Biphenyl Compounds chemistry
Butylated Hydroxytoluene chemistry
Catechin analogs & derivatives
Catechin chemistry
Chemistry methods
Chromatography, High Pressure Liquid
Dose-Response Relationship, Drug
Free Radicals
Hydrazines chemistry
Linoleic Acid chemistry
Lipid Peroxidation
Models, Chemical
Phenol chemistry
Picrates
Antioxidants chemistry
Eleocharis metabolism
Phenol analysis
Subjects
Details
- Language :
- English
- ISSN :
- 1420-3049
- Volume :
- 12
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Molecules (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 17851436
- Full Text :
- https://doi.org/10.3390/12040842