Effect of Traditional Sun-Drying on Phenolic Antioxidants of Averrhoa Bilimbi L.
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Date
2013-04
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Abstract
Averrhoa bilimbi L. has various beneficial properties including antidiabetic and antioxidant
activity. The effect of traditional sun drying on the stability of fresh A. bilimbi fruits was investigated
by using different methanol/water extracts, and their total phenolic content (TPC) and total antioxidant
capacity (TAC) compared. The TAC was evaluated using established in vitro models such as
1,1,diphenyl-2-picryl hydrazyl radical scavenging activity, 2,2ยด-azino-bis-(3-ethylbenzothiazoline-6-sulfonic
acid) scavenging assay, total reducing power, phosphomolybdenum assay and metal chelating activity. All
the extracts of the dried fruit showed lower TPC compared to the fresh bilimbi extracts by 23-88%,
TAC of which corresponded accordingly. The investigation revealed that A. bilimbi was a good source of
antioxidants; however, the drying process of the fruit significantly affected the bioactive compounds.
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Keywords
Antioxidants, Averrhoa bilimbi, polyphenols, Free Radical Scavenging Activity, Metal Chelating Activity
Citation
Chauhan Jyoti Bala, Kapfo Wethroe. Effect of Traditional Sun-Drying on Phenolic Antioxidants of Averrhoa Bilimbi L. International Journal of Applied Biology and Pharmaceutical Technology. 2013 Apr-June; 4(2): 26-34.