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Antioxidant, antimicrobial activities and characterization of phenolic compounds from buriti (Mauritia flexuosa L. f.) by UPLC–ESI-MS/MS

Koolen, Hector H.F. ; da Silva, Felipe M.A. ; Gozzo, Fábio C. ; de Souza, Antonia Q.L. ; de Souza, Afonso D.L.

Food research international, 2013-05, Vol.51 (2), p.467-473 [Periódico revisado por pares]

Kidlington: Elsevier Ltd

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Título:
Antioxidant, antimicrobial activities and characterization of phenolic compounds from buriti (Mauritia flexuosa L. f.) by UPLC–ESI-MS/MS
Autor: Koolen, Hector H.F. ; da Silva, Felipe M.A. ; Gozzo, Fábio C. ; de Souza, Antonia Q.L. ; de Souza, Afonso D.L.
Assuntos: antimicrobial properties ; Antioxidant activity ; antioxidants ; bacteria ; Biological and medical sciences ; Buriti ; caffeic acid ; chlorogenic acid ; cosmetics ; Food industries ; Food microbiology ; fruit extracts ; Fundamental and applied biological sciences. Psychology ; ionization ; kaempferol ; leaf extracts ; Mauritia ; Mauritia flexuosa ; medicine ; minimum inhibitory concentration ; myricetin ; pathogens ; Phenolic compounds ; Pseudomonas aeruginosa ; quercetin ; rutin ; tandem mass spectrometry ; ultra-performance liquid chromatography ; UPLC–ESI-MS/MS
É parte de: Food research international, 2013-05, Vol.51 (2), p.467-473
Notas: http://dx.doi.org/10.1016/j.foodres.2013.01.039
Descrição: Mauritia flexuosa L. f. is a native palm tree from the South American Amazon rainforest commercialized in food, cosmetics and medicine. This paper reported the antioxidant, antimicrobial activities and characterization of phenolics from buriti leafs, trunk and fruit extracts. The total phenolics of the buriti extracts ranged from 378.07±3.12 to 86.89±3.15mg GAEq/100g and flavonoid content ranged from 567.16±1.15 to 246.84±1.11mg QUEREq/100g. The antioxidant activity assays with EC50 of 12.28±0.022 to 19.58±0.064mg/mL revealed the antioxidant capacity of M. flexuosa extracts. Results of the antimicrobial tests against some pathogenic bacteria revealed its strong ability to inhibit the growth of pathogen with low MIC values, where the best results were found with the leaf extract against the pathogen Pseudomonas aeruginosa (MIC 50μg/mL). The characterization of the phenolic compounds using Ultra Performance Liquid Chromatography coupled to Electrospray Ionization Tandem Mass Spectrometry (UPLC–ESI-MS/MS) was based on CID experiments of the observed precursors, thus 13 compounds were tentatively identified ((+)-catechin, caffeic acid hexoside, chlorogenic acid, quercetin, narigenin, myricetin, vitexin, scoparin, rutin, cyanidin-3-rutinoside, cyanidin-3-glucoside, (−)-epicatechin and kaempferol). These results indicate that antioxidant and antimicrobial activities in buriti phenolic extracts are quite potent and implicate the presence of compounds with potent free-radical-scavenging activity. ► The Amazonian fruit buriti (Mauritia flexuosa) is a source of phenolic compounds. ► Different parts of M. flexuosa showed different antioxidant capacities. ► Low antimicrobial activity was detected for the phenolic extracts. ► The main phenolic compounds were identified by UPLC–MS/MS.
Editor: Kidlington: Elsevier Ltd
Idioma: Inglês

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Antioxidant, antimicrobial activities and characterization of phenolic compounds from buriti (Mauritia flexuosa L. f.) by UPLC–ESI-MS/MS

Koolen, Hector H.F. ; da Silva, Felipe M.A. ; Gozzo, Fábio C. ; de Souza, Antonia Q.L. ; de Souza, Afonso D.L.

Kidlington: Elsevier Ltd

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