Biofortification with selenium as an alternative to increase the total phenolic compounds in brassicas: a systematic review and meta-analysis |
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| Authors: | Camila Menezes Kamchen Fellipe Lopes de Oliveira Thamara Rosa de Souza Bruno Serpa Vieira Bruna Telles Maressa Caldeira Morzelle |
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| Affiliation: | 1. Department of Food and Nutrition, Federal University of Mato Grosso, Cuiabá, Brazil;2. School of Veterinary Medicine, Federal University of Uberlandia, Uberlandia, Brazil |
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| Abstract: | The ability of brassicas to accumulate selenium is crucial for their positive effects on health. Selenium improves the immune system and the antioxidant defenses. Selenium biofortification of brassicas has therefore been explored to increase dietary selenium intake in humans. However, the effects of selenium biofortification on bioactive compounds, mainly phenolic compounds, are not clear. So, this systematic review and meta-analysis aimed to answer the question ‘What are effects of the biofortification of brassicas with selenium on total phenolic compounds?’ Ten studies, which assessed the effect of selenium biofortification on total phenolic compounds, were selected for qualitative synthesis and four studies were included in the meta-analysis after a thorough literature review of the PubMed, Science Direct, and Web of Knowledge databases. The quality of the evidence ranged from high to moderate. The meta-analysis results indicated that the total phenolic compound content was significantly higher (P = 0.002) in the supplemented group but the results showed considerable heterogeneity (P < 0.00001, I2 = 97%) between studies. This systematic review and meta-analysis summarizes the effect of Se biofortification on the increase in the content of total phenolic compounds and it suggests that several factors can affect this relationship. © 2023 Society of Chemical Industry. |
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| Keywords: | polyphenols antioxidant minerals Se biofortified |
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