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Iodometric Determination of the Ascorbic Acid (Vitamin C) content of someFruits consumed in Jimma Town Community in Ethiopia

Author Affiliations

  • 1Department of Chemistry, College of Natural Sciences, Jimma University, P.O. Box 378, Jimma, ETHIOPIA

Res.J.chem.sci., Volume 5, Issue (1), Pages 60-63, January,18 (2015)

Abstract

The objective of this study was to determine the ascorbic Acid (Vitamin C) Content of Some Fruits Consumed in Jimma TownCommunity in Ethiopia. Representative commercial fruits such as orange, lemon, papaya, mango and tomato werepurchased randomly from local market found in Jimma Town community in Ethiopia and brought to Chemistry Departmentin Jimma University and preserved in Refrigerator. The fruit samples were first washed with water; the juice from each fruitwas squeezed out, and filtered. Then, the obtained juice was centrifuged until a clear sample was obtained, which wassubsequently analyzed for Ascorbic acid content of fresh fruit juices by volumetric method. The results of present studyindicated that the concentration of ascorbic acid in each fruits found to be: Papaya (1673.018 136.1096 mg/100 mL),Orange (141.34 22.07 mg/100 mL), Lemon (199.8133 126.5819 mg/100 mL), Mango (1104.459204.5954 mg/100 mL)and Tomato (542.002 101.55 mg/100 mL). From the results it can be concluded that the ascorbic acid content of fruits juice(fruit pressing) were found to be in the order of Papaya> Mango > Tomato > Lemon > Orange.

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