Eleven non-conventional tropical fruits were evaluated regarding their nutritional value, antioxidant potential, carotenoid contents and bioaccessibility. The fruits were chosen due to their spread through the Brazilian territory: araçá-boi, jaracatiá, cambuití, seriguela, capeba, pitangatuba, pitanga, buriti, acerola, dovialis and abricó-da-praia. Results have shown that these fruits are in general, i.e. depending on the fruit, rich sources of dietary fibers and minerals, high in moisture, and low in proteins. Twelve carotenoids were analyzed by HPLC-DAD and results ranged from 0.04 to 104 μg/g wet weight. Xanthophylls stood out, being higher than carotenes for araçá-boi, seriguela, pitangatuba and dovialis. Bioaccessibility varied both between fruits and carotenoids ranging from 2 to 75%. Although the fruit matrix effect, xanthophylls were more bioaccessible than carotenes, while lycopene and γ-carotene presented the poorest bioaccessibility. The present study is fundamental to expand the knowledge about the fruit properties, carotenoids bioaccessibility and potential benefits for health, as well to preserve natural resources and encourage the intake of new fruits for human nutrition.
Brazilian native fruit Bioavailability Xanthophylls Carotenes In vitro digestion
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This work was supported by the São Paulo Research Foundation – FAPESP trough research funding [grant #2015/15507-9] and PhD scholarships for Paulo Berni [grant #2014/15119-6] and Nataly Toledo [grant #2014/14049-4]. We thank Helton Muniz, from Sítio de Frutas Raras, for his extreme efforts to grow and protect the Brazilian native fruits, provide samples and help with his accurate knowledge about botany.
Compliance with Ethical Standards
Conflict of Interest
All authors declare they have no conflict of interest.
This article does not contain any studies with human or animal subjects.
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