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Scientia Agricola

versão On-line ISSN 1678-992X

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BORGUINI, Renata Galhardo et al. Carotenoid extraction using edible vegetable oil: an enriched provitamin A product. Sci. agric. (Piracicaba, Braz.) [online]. 2021, vol.78, n.5, e20190332.  Epub 24-Ago-2020. ISSN 1678-992X.  http://dx.doi.org/10.1590/1678-992x-2019-0332.

Vitamin A deficiency is the third most important micronutrient deficiency having a significant impact on public health worldwide. The aim of this study was to develop a carotenoid extraction process with edible vegetable oils, using a central composite design which, concurrently, enriches the oils with provitamin A carotenoids. The stability of carotenoids in the oil and their shelf life was also evaluated. The process also aimed to meet the Recommended Daily Intake for vitamin A (600 μg retinol equivalent for an adult) with the enriched oil. The results showed that 20 % of the vegetable matrix (dried carrot) in vegetable oil and 5 min of extraction time was an optimum combination for both soy oil (64.43 μg retinol equivalent mL−1) and olive oil (62.98 μg retinol equivalent mL−1). Furthermore, the ingestion of just a spoonful (∼10 mL) of the enriched oils would meet the Recommended Daily Intake for vitamin A (600 μg retinol equivalent), and, thus, it was possible to affirm that a dose of vegetable oils enriched with provitamin A contributes to meeting the Recommended Daily Intake for vitamin A. The proposed process is based on simple and low-cost technology that can be used to enrich edible oils (soybean and olive oil) with provitamin A.

Palavras-chave : retinol; food-to-food fortification; oil shelf life; carotenoid stability; central composite design.

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