Özet:

Two different orange juices obtained from cvs. Kozan Misket and Kozan Yerli were compared in terms of sugar and organic acid composition. These two parameters are important in determining the ripeness of fruits. Samples were obtained from Cukurova region of Turkey and the analysis was carried out by high-performance liquid chromatographic methods. Four organic acids (citric, ascorbic, malic and succinic acids) and three sugars (sucrose, glucose and fructose) were determined. Sucrose had the majority in sugars in both samples with the concentration of 61.02 g/l in Kozan Misket and 63.23 g/l in Kozan Yerli, respectively. With regard to organic acids, citric acid was found to be present in the largest amounts having concentration of 16.25 g/l in Kozan Misket and 15.90 g/l in Kozan Yerli in both samples.

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