COMPARATIVE ANALYSIS OF VITAMIN C IN FRESH FRUITS JUICE OF Malus domestica, Citrus sinensi, Ananas comosus AND Citrullus lanatus BY IODOMETRIC TITRATION

Abstract: Vitamin C, also known as ascorbic acid, is a water soluble vitamin that is regarded as one of the safest and most effective nutrients. Vitamin C can be found in most fruits and vegetable. The objective of the study is to determine vitamin C content in four commercial fruits (Apple, Orange, Pineapple and Watermelon). Vitamin C content of the fresh fruits was determined titrimetrically. The method of determination was cheap, accurate and can be used for routine analysis. Apple vitamin C content was used as control (7.94 ± 0.13mg/100ml). The highest amount of vitamin C was in orange (10.13 ± 0.10mg/100ml) higher than that of apple followed by pineapple (6.40±0.18mg/100ml). However, watermelon had the lowest amount of vitamin C (4.08±0.12mg/100ml). There is a significant difference in vitamin C content among the fruits (p <0.05). The method of determination was cheap, accurate and can be used for routine analysis