Total antioxidant capacity, total phenolic content and mineral elements in the fruit peel of Myrciaria cauliflora

Abstract

The in vitro antioxidant capacity, total phenolic content and mineral elements of the fruit peel of Myrciaria cauliflora were investigated. The antioxidant capacity was analyzed by the diphenylpicrylhydrazyl (DPPH), 2,2'-azino-bis(3ethylbenzthiazoline-6-sulfonic acid) (ABTS), ferric reducing antioxidant power (FRAP) and β-carotene methods. The assays based on the DPPH (EC 50 = 3.18 g sample/g DPPH), ABTS •+ (1017 μmol Trolox/g sample), FRAP (1676 μM Fe 2 SO 4 /g sample) and β-carotene/linoleic acid (70% of oxidation inhibition) methods indicated a high antioxidant capacity of the fruit peel extract of the plant. The Folin-Denis method was more efficient in determining the total phenolic compound contents in the different solvents than the Folin-Ciocalteu one. Extractions made with 4:1 methanol-water, 4:1 ethanol-water, 3:2 ethanol-water and 3:2 acetonewater solutions using the Folin-Denis method exhibited high contents of phenolic compounds (18.95, 14.06, 12.93 and 11.99 mg GAE/g, respectively). Potassium was the major element found in the fruit peel, followed by phosphorus, calcium, magnesium and iron, in that order. As a result, the fruit peel of M. cauliflora can be considered as an important source of natural antioxidants and essential elements of easy access for the population and for application in the food industry. ResumoA capacidade antioxidante, o conteúdo fenólico total e os elementos minerais foram investigados, in vitro, nas cascas dos frutos de Myrciaria cauliflora. A capacidade antioxidante foi analisada pelos métodos difenilpicrilhidrazina (DPPH), [2,2'-azino-bis(3-etilbenzotiazolin)-6-sulfônico] (ABTS), poder redutor do íon férrico (FRAP) e β-caroteno. Os ensaios baseados nos métodos DPPH (EC 50 = 3,18 g amostra/g DPPH), ABTS •+ (1017 μmol Trolox/g amostra), FRAP (1676 μM Fe 2 SO 4 /g amostra) e β-carotene/ácido linoleico (70% de inibição da oxidação) indicam alta capacidade antioxidante dos extratos das cascas dos frutos dessa planta. O método Folin-Denis foi mais eficiente quando comparado com Folin-Ciocalteu para a determinação de compostos fenólicos em diferentes solventes. Extrações com soluções de 4:1 metanol-água, 4:1 etanol-água, 3:2 etanol-água e 3:2 acetona-água, usando o método Folin-Denis, exibem alto conteúdo de compostos fenólicos (18,95; 14,06; 12,93; 11,99 mg GAE/g, respectivamente). Potássio é o elemento encontrado em maior proporção nas cascas deste fruto, seguido pelo fósforo, cálcio, magnésio e ferro. Como resultado, cascas do fruto de M. cauliflora podem ser consideradas uma importante fonte de antioxidantes naturais e elementos essenciais de fácil acesso à população e aplicação pela indústria de alimentos.

Jabuticaba (Myrciaria cauliflora) Seeds: Chemical Characterization and Extraction of Antioxidant and Antimicrobial Compounds

“…Jabuticaba fruits have a wide variety of nutrients, such as carbohydrates, minerals, amino acids, lipids, and vitamins (Wu and others ). Studying this berry, Alezandro and others (), Araújo and others (), Lima and others (), and Lima and others () evaluated the chemical composition of jabuticaba from Sabará and Paulista varieties and found a high content of minerals, K, Na, Mg, Ca, Cu, Fe, and Mn, both in the whole fruits as in their parts (skin, seed, and pulp). Alezandro and others () observed that jabuticaba seeds have high concentrations of ellagitannins and proanthocyanidins, whereas skin exhibited the highest amounts of anthocyanins and quercetin derivatives.…”

Efeito Carcinogênico Ou Anticarcinogênico Do Extrato Aquoso Da Casca De Jabuticaba (Plinia Cauliflora): Uma Revisão Integrativa

“…Here we showed that the water extract of jaboticaba seeds possesses appreciable antioxidant activity as well. Jaboticaba is promising not only as a source of antioxidants but also as a chemopreventative agent BAGATTOLI; CIPRIANI; MARIANO; CORREA; WAGNER; NOLDIN; CECHINEL FILHO; NIERO, 2016 We investigated the antinoceptive genotoxic and gastroprotector potential of metanol extract of different fruits found in Brazil Plinia glomerata and G. achachairu inhibited the growth of B16F10 tumor cells and these fruits showed promising results that could be passed on, in order to guide people who use these plants for this purpose PLAZA; BATISTA; CAZARIN; SANDAHL; TURNER; ÖSTMAN; MARÓSTICA JR, 2016 In the present study, the polyphenols profile and their contribution to the antioxidant capacity of the jaboticaba peel were analyzed using highperformance liquid chromatography (HPLC) with photodiode array (DAD), electrochemical (ECD), charged aerosol (CAD), and mass spectrometry (MS) detections…”

Physicochemical characterization and antioxidant activity of Calabura fruit (Muntingia calabura L.)

“…Subsequentemente, as amostras foram filtradas em filtro Whatman n° 1 e os permeados utilizados para análise. O conteúdo de compostos fenólicos totais foi determinado espectrofotometricamente (HACH, modelo DR2800) pelo método de Folin-Denis como descrito por Swaine Hillis (1959), com algumas modificações (ARAÚJO et al, 2013). Em tubos de ensaio contendo 7,5 mL de água destilada foram adicionados 1000 µL dos extratos previamente diluídos, 500 µL do reagente Folin-Denis e 1000 µL de solução de carbonato de sódio 7% (p/v).…”