Abstract
Apple is one of the fruits that has beneficial effects on human healthy diet and life. The aim of this study is to determine some physical, mineral and organic acids composition of apple cultivars grown in different locations throughout Lorestan province. Apple cultivars had been harvested from different locations throughout Lorestan province of Iran. Analyses for 3 elements (Iron, Zinc, and calcium) were conducted by the flame atomic absorption spectrometry. Phosphorus was measured by the UV-Vis spectrophotometer and Sodium and Potassium were measured by the flame photometer. Organic acids were determined by Titration method using NaOH and phenolphethalein indicator. Weight was measured by scale based on 0.1 g and length and diameters were measured by caliper. The mean weight of Red Delicious and Golden Delicious apples was 173.7 g and 146.7 g, respectively. The amount of iron, zinc, calcium, phosphorus, sodium, and potassium for the red variety was 0.24, 0.14, 28, 8.9, 4.7 and 63.8 respectively; values for the Golden variety were 0.23, 0.14, 27.9, 8.8, 4.5, and 66.3 mg/100g fresh weight, respectively. The amount of ascorbic acid, malic acid, and citric acid for Golden delicious was 9.09, 0.27 and 0.28, respectively; for Red delicious apples, the amount was 9.47, 0.26 and 0.28 mg/100 g, respectively. Acidities for Golden delicious and Red delicious were 3.7 and 4, respectively. One hundred gram of apple fruit grown in Lorestan would provide 3% of iron, 1.5% of zinc, 2.8% of calcium and 1.4% of potassium requirements. The amount of organic acid in apples of Lorestan province was lower than some other countries.
Keywords: Apple, golden delicious, mineral, organic acid, physical, red delicious.
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