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Carotenoid extraction using edible vegetable oil: an enriched provitamin A product

2020; UNIVERSIDADE DE SÃO PAULO; Volume: 78; Issue: 5 Linguagem: Inglês

10.1590/1678-992x-2019-0332

1678-992X

Renata Galhardo Borguini, Sidney Pacheco, Davy William Hidalgo Chávez, Giovana Almeida Couto, Allan Eduardo Wilhelm, Manuela Cristina Pessanha de Araújo Santiago, Luzimar da Silva de Mattos do Nascimento, Monalisa Santana Coelho de Jesus, Ronoel Luiz de Oliveira Godóy,

Vitamin C and Antioxidants Research

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.