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Carotenoids and vitamin E content of four cultivars of Annona Cherimola Mill. including its by-products
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Tropical fruits are known by their bioactive compounds and vitamins, which are essential in a healthy diet. In this study, six carotenoids and vitamin E were quantified in the pulp and by-products (seeds and peel) of four cultivars of Annona cherimola Mill. Fruit parts were separated and homogenised. Carotenoids and vitamin E (α-tocopherol) were extracted from samples with hexane/ethanol (4:3, v/v) and quantified using a validated method by Ultra-high Pressure Liquid Chromatography with diode array detection. Our results showed higher carotenoids content in the peel than in the pulp and seeds. Lutein was the major carotenoid (229 26 μg/100 g) found in the peel of “Mateus” cultivar followed by β-carotene with a content of 174 11 μg/100 g. The mean value found for α-tocopherol content in seeds was higher than 0.90 mg/100 g. This vitamin was quantified in all the fruit parts and the content increased in the following order: pulp<peel<seeds. Annona cherimola Mill. by-products (peel and seeds) can be potentially rich in bioactive compounds, especially lutein and α-tocopherol, indicating promising sources of high value natural extracts that can have potential to be used in the development of nutraceuticals or pharmaceuticals to benefit human health.
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Composição dos Alimentos Nutrição Aplicada
Contexto Educativo
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Instituto Nacional de Saúde Doutor Ricardo Jorge, IP