Abstract
Mineral contents of some tropical fruits were determined by Inductively Coupled Plasma Atomic Emission Spectrometry. Phosphorus contents of Portuguese samples ranged from 884.63 mg/kg (Laranga Nacional orange) to 1605.57 mg/kg (lemon). In addition, P contents of Spainish citrus fruits ranged from 865.24mg/kg (Lemon) to 1227.39 mg/kg (orange). While potassium contents of Portuguese fruits ranged from 9618.96 mg/kg (Laranja Nacional orange) to 15704.95 mg/kg (lemon), K contents of Spain samples were found between 10946.18 mg/kg (Mandarin) and 16312 mg/kg (orange). As a micro element, Fe contents of Portugal samples ranged from 9.47 mg/kg (Grape fruit Turanja vermelha) to 15.69 mg/kg (lima). Zinc contents of Portuguese fruit samples changed between 2.32 mg/kg (mandarin) and 7.75 mg/kg (lemon). The highest and the lowest K contents were found in Turkey orange (16459.66 mg/kg) and lemon peels (5534.64 mg/kg). Phosphorus contents of Portuguese Citrus fruit peels ranged from 418.99 mg/kg (Laranja National orange) to 1086.55 mg/kg (Ortanique orange). Generally, P and K contents of edible tissue cif Citrus fruits were found higher compared with results of citrus fruit peels.