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Pak. J. Bot., 46(4): 1459-1462, 2014. |
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Updated: 11-08-14 | ||||
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CITRUS FRUITS BY-PRODUCTS AS SOURCES OF BIOACTIVE COMPOUNDS WITH ANTIOXIDANT POTENTIAL
FAHAD Y. AL-JUHAIMI
Abstract: Peel and pulp from Orlando orange, Kinnow mandarin and Eureka lemon fruits were evaluated for phenolic compounds, ascorbic acid contents and free radical scavenging activities. Pulp from orange, mandarin and lemon contained 123.02, 104.98 and 98.38 mg GAE/100 g total phenolics; 61.38, 38.52 and 57.63 mg/100g ascorbic acid and 69.31, 62.82 and 59.60 % DPPH radical scavenging activities, respectively. Peel from orange, mandarin and lemon contained 178.90, 169.54 and 61.22 mg GAE/100 g total phenolics; 62.45, 54.87 and 25.68 mg/100g ascorbic acid and 67.58, 68.57 and 46.98% DPPH radical scavenging activities, respectively. The data reveals that these citrus by-products are good sources of bioactive compounds and be considered as antioxidant constituents for developing functional foods.
Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P. O. Box 2460, Riyadh 11451, Kingdom of Saudi Arabia *Corresponding author email: faljuhaimi@ksu.edu.sa; fahadaljuhaimi@hotmail.com; Tel. +966114678408 Fax: +966114678394
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