Comparison of phenolic content and antioxidant activity of two common fruits of Bangladesh in solvents of varying polarities
2021
Ghosh, R. | Barua, P. | Sikder, O. | Saha, S. | Mojumder, S. | Sikdar, D.
Phenolic content and antioxidant activity of two common fruits of Bangladesh, namely Phyllunthus emblica and Elaeocarpus floribundus, were measured in water, methanol, ethanol, acetone and hexane extracts. Several in vitro models including phosphomolybdenum assay, DPPH free radical scavenging assay, FRAP assay and reducing power assay were used to assess the antioxidant activity of these extracts in comparison with reference antioxidants. Between the two fruits, P. emblica showed higher phenolic content and antioxidant activity in all the solvents used. In the DPPH scavenging assay, the activity of P. emblica extracts was close to reference antioxidants, ascorbic acid and BHT. Besides, considering the solvents used, extracts of both fruits had the highest phenolic and antioxidant activity in polar solvents. The correlation coefficient between total phenolics and antioxidant activities was found statistically significant. These findings suggest that P. emblica could be an excellent antioxidant resource for industries like food, pharmaceutical, and cosmetics.
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