Analysis of Phenolic Composition of Byproducts (Seeds and Peels) of Avocado ( Mill.) Cultivated in Colombia
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The byproducts (seeds and peels) of an avocado cultivated in the south of Colombia were extracted with aqueous acetone and their antioxidant properties were measured with ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) and DPPH (2,2-diphenyl-1-picrylhydrazyl) assays, and total polyphenol content was determined by Folin-Ciocalteu method. A bioguided fractionation was performed, first by SPE (solid phase extraction) on Amberlite XAD-7, and then by size exclusion chromatography on Sephadex LH-20. The polyphenolic-rich extracts and their fractions were analyzed by ultra-performance liquid chromatography-electrospray ionization-mass spectrometry (UPLC-ESI-MS/MS), finding the presence of organic acids, hydroxycinnamic acids, catechins, free and glycosylated flavonoids, and dimeric and trimeric procyanidins. Catechin, epicatechin, six quercetin derivatives, four dimeric procyanidins (three type B and one type A), and three trimeric procyanidins (two type B and one type A) were detected in the most active fractions of avocado peel and seeds. The most antioxidant fractions contain the higher molecular weight phenolic compounds (condensed tannins).
Decot H, Sudhakaran M, Boismier E, Schilmiller A, Claucherty E, Doseff A Foods. 2023; 12(20).
PMID: 37893640 PMC: 10606708. DOI: 10.3390/foods12203748.
Study of Influence of Extraction Method on the Recovery Bioactive Compounds from Peel Avocado.
Martinez-Gutierrez E Molecules. 2023; 28(6).
PMID: 36985528 PMC: 10056231. DOI: 10.3390/molecules28062557.
Lyu X, Agar O, Barrow C, Dunshea F, Suleria H Antioxidants (Basel). 2023; 12(1).
PMID: 36671046 PMC: 9855119. DOI: 10.3390/antiox12010185.
El-Magd M, Zedan A, Zidan N, Sakran M, Bahattab O, Oyouni A Molecules. 2022; 27(22).
PMID: 36431959 PMC: 9698978. DOI: 10.3390/molecules27227859.
Biological Evaluation of Avocado Residues as a Potential Source of Bioactive Compounds.
Rojas-Garcia A, Fuentes E, de la Luz Cadiz-Gurrea M, Rodriguez L, Villegas-Aguilar M, Palomo I Antioxidants (Basel). 2022; 11(6).
PMID: 35739946 PMC: 9220077. DOI: 10.3390/antiox11061049.