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Chemical composition of Campomanesia xanthocarpa Berg -Myrtaceae Fruit

Fresh fruit samples of Campomanesia xanthocarpa (Myrtaceae) harvested at different maturity stages in Assis State Forest, Assis - SP were analyzed by traditional methods such as chromatographic techniques, mass spectrometry, and optical emission spectrometry in order to evaluate the nutritional composition, the volatile oil chemical profile, and the level of inorganic elements. The results indicated high content of water (81.4%), lipids (1.9%), total carbohydrates (8.9%), dietary fibers (6.3%), and reasonable amounts of ascorbic acids (17.8 mg.100 g-1), and traces of riboflavin (0.09 mg.100 g-1). 62 compounds were identified in the volatile oil (0.2%) corresponding to 100% of the oil constituents presenting monoterpene hydrocarbons, α-pinene (15%), o-cymene (10.8%), and β-pinene (10.5%) as major compounds. Among the minerals (16), the main elements were quantified as K (2084 mg.kg-1), P (149 mg.kg-1), and Mg (135 mg.kg-1); the microelements were quantified as Fe (6.4 mg.kg-1), Cu (93.3 mg.kg-1), and additionally, Pb (1.3 mg.kg-1) as the contaminant. The caloric value of the fruit (57.3 kcal.100 g-1) is almost exclusively due to the total carbohydrates (8.9%) contents.

Guabirobeira-do-mato; nutrients; vitamins; essential oil; inorganic elements


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