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- Title
Antioxidant activity and total phenolic content of some indigenous fruits of Bangladesh.
- Authors
Rahman, M. M.; Khan, F. E.; Das, R.; Hossain, M. A.
- Abstract
The extracts of five species of citrus fruits namely tamarind, star fruit, Indian gooseberry, ambarella and satkara were examined for their potential sources of natural polyphenols and antioxidant activities. Total phenolic contents were determined using the Folin-Ciocalteau reagent method and antioxidant activity was determined according to the DPPH method. Tamarind had the highest total phenolic content (52.23±0.91 mg of Gallic acid/g dry weight) followed by satkara (45.62±.33 mg GAE/ml), Indian gooseberry (39.38±2.15 mg GAE/g), star fruit (31.76±1.45 mg GAE/g) and ambarella (27.08±1.66 mg GAE/g). The daily intake of total phenolics in the Bangladeshi diet was estimated of those fruits and tamarind contributed the highest amount of total phenolics (629.37 mg GAE g-1 fresh product) followed by Satkara (549.72 mg GAE/g fresh product), Indian gooseberry (474.53 mg GAE/g fresh product), star fruit (326 mg GAE/g fresh product) and Ambarella (326.31 mg GAE/g fresh product). Tamarind (concentration 5000 μg/ml) exhibited highest scavenging effects (95.05±1.40%) followed by Satkara (94.21±.12%), Indian gooseberry (93.35±2.10%), star fruit (81.26±1.10%) and ambarella (74.12±1.44%). A linear positive relationship existed between the antioxidant activity and total phenolic content of the citrus fruit extracts (R2 =0.82). The extracts of citrus fruits represent as a significant source of phenolic content with potential prophylactic properties for the human body.
- Subjects
BANGLADESH; ANTIOXIDANTS; PHENOLS; CITRUS fruits; GOOSEBERRIES
- Publication
International Food Research Journal, 2016, Vol 23, Issue 6, p2399
- ISSN
1985-4668
- Publication type
Article