Exhaustive Extraction of Bioactive Compounds and Antioxidants from Ataulfo Mango Seed

Abstract

Mango (Mangifera indica L.) is an important fruit worldwide, with high production that allows the production products such as juices and jams. Mango processing generates wastes, such as peels and seeds, which have been explored for their phytochemical profile and bioactivity. However, mango seed extraction processes generate waste sediment that has not been analyzed to determine whether polyphenols or antioxidants are present. Therefore, the objective of this study was to perform exhaustive extraction of mango seeds and evaluate their polyphenolic content (PC) and antioxidant activity (AA). The results showed a strong relationship between the content of the extracted material, PC, and AA. Extraction 1 showed a PC of 24.79 ± 1.41 mg GAE/g (hydrolysable) and 12.38 ± 1.70 mg CE/g (condensed) and AA was DPPH: 334.65 ± 18.71 mg TE/g, ABTS: 576.50 ± 16.91 mg TE/g and FRAP: 325.20 ± 14.09 mg TE/g, these results were significant concerning extractions 2, 3, 4, and 5. However, the second extraction was significant in hydrolysable tannins, ABTS, and FRAP against extractions 3, 4, and 5. Extractions 4 and 5 showed the lowest results, with no significant differences between them in all assays. Therefore, it is possible to make at least two extractions of mango seed and obtain significant values of polyphenols and antioxidants in a second extraction, which allows further use of the seed and waste sediment from the first extraction.