Submit Manuscript

Asian Journal of Plant Sciences

Year: 2010 | Volume: 9 | Issue: 8 | Page No.: 479-485
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Article Trend

Total views 1032

Search

Authors

H.V. Annegowda

C. Ween Nee

M.N. Mordi

S. Ramanathan

S.M. Mansor

Keywords

Research Article

Evaluation of Phenolic Content and Antioxidant Property of Hydrolysed Extracts of Terminalia catappa L. Leaf

H.V. Annegowda, C. Ween Nee, M.N. Mordi, S. Ramanathan and S.M. Mansor
The influence of acid and alkaline hydrolysis on the phenolic content and antioxidant activity of Terminalia catappa L. leaves were evaluated in this study. Polyphenolic content was determined using total phenolic, total flavonoid and total tannin assays. Four in vitro antioxidant assays such as DPPH, ABTS, Ferric Reducing Antioxidant Potency (FRAP) and total antioxidant capacity assays were followed to determine the antioxidant potency of the extracts and the values were expressed as mg vitamin C equivalent antioxidant capacity (VCEAC)/g extract. The results of this study indicated that acid hydrolysed and alkaline hydrolysed extracts possess fewer amounts of polyphenolic constituents in comparison with non hydrolysed extract. Even the VCEAC values of non hydrolysed extract in antioxidant assays were significantly higher (p<0.05) than acid and alkaline hydrolysed extracts. Moreover, the UV-visible spectral study also showed the absence of some of the absorption peaks of polyphenolic constituents in acid and alkaline hydrolysed extracts and hence, it supported our in vitro results. A strong correlation was observed for polyphenolic content and antioxidant activities of these extracts ensuring the involvement of polyphenolic content for the antioxidant activity. However, the results of this study may not be generalised for all plants as different plants possess different phytoconstituents in varying quantities.
PDF Fulltext XML References Citation

Related Articles

Application of Lantana camara Flower Extract as a Natural Coloring Agent with Preservative Action
Antinociceptive and Anti-inflammatory Activities of Flower (Alangium salvifolium) Extract
Rosmarinic Acid Prevents the Oxidation of Low Density Lipoprotein (LDL) In vitro
Antioxidant and Analgesic Activities of Lannea coromandelica Linn. Bark Extract
Evaluation of Analgesic and Antioxidant Potency of Various Extracts of Cinnamomum iners Bark
Analgesic and Antioxidant Properties of Ethanolic Extract of Terminalia catappa L. Leaves

Leave a Comment

Your email address will not be published. Required fields are marked *