Evaluation of antioxidant activity of agro-industrial waste of acerola (Malpighia emarginata D.C.) fruit extracts

Caetano, Ana Carla da Silva; Araújo, Cristiane Rodrigues de; Lima, Vera Lúcia de Menezes; Maciel, Maria Inês Sucupira; Mélo, Enayde de Almeida

doi:10.1590/s0101-20612011000300034

Cited by 26 publications

(15 citation statements)

References 23 publications

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“…The mechanism for sequential extraction in food using different extractors is commonly used, as it provides higher bioactive affinity and improves bioavailability (25,26). The use of water in the solvent mixtures is important since it helps to break the complex solute matrix due to its high polarity, thus allowing a greater extraction of the solute from the substrate (27).…”

Section: Resultsmentioning

confidence: 99%

Phenolic profile and antioxidant activity from peels and seeds of melon (Cucumis melo L. var. reticulatus) and their antiproliferative effect in cancer cells

Rolim

Fidelis

Padilha

et al. 2018

Braz J Med Biol Res

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Melon (Cucumis melo L.) has high economic value and in recent years, its production has increased; however, part of the fruit is wasted. Usually, inedible parts such as peel and seeds are discarded during processing and consumption. Extracts of melon residues were prepared and their phenolic compounds, antioxidants and antiproliferative activities were evaluated. Total phenolic compounds were found in hydroethanolic, hydromethanolic, and aqueous extracts, especially for melon peel (1.016 mg gallic acid equivalent/100 g). Flavonoids total content found for melon peel aqueous extract was 262 µg of catechin equivalent (CA)/100 g. In all extracts of melon peel significant amounts of gallic acid, catechin, and eugenol were found. For total antioxidant capacity, reported as ascorbic acid equivalent, the hydroethanolic and hydromethanolic extracts in peels and hydromethanolic in seeds were 89, 74, and 83 mg/g, respectively. Different extracts of melon showed iron and copper ions chelating activity at different concentrations, especially melon peel aqueous extract, reaching values of 61% for iron and 84% for copper. The hydroethanolic extract of melon peel presented a significant ability for hydroxyl radicals scavenging (68%). To assess the antiproliferative potential in human cancer cell lines, such as kidney carcinoma, colorectal carcinoma, cervical adenocarcinoma and cervical carcinoma, MTT assay was performed. The proliferation was inhibited by 20–85% at extracts concentrations of 0.1–1.0 mg/mL in all cancer cell lines. The results suggest that melon residues extracts display a high antioxidant activity in in vitro assays and have effective biological activity against the growth of human tumor cells.

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Section: Resultsmentioning

confidence: 99%

Phenolic profile and antioxidant activity from peels and seeds of melon (Cucumis melo L. var. reticulatus) and their antiproliferative effect in cancer cells

Rolim

Fidelis

Padilha

et al. 2018

Braz J Med Biol Res

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“…As a consequence of the high agricultural activity of this fruit, a large volume of agroindustrial waste is generated every year, being discarded as worthless material and often polluting the environment. Researchers have sought viable alternatives to explore the bioactive compounds of agro-industrial waste that could add value to the food, pharmaceutical and cosmetic industry (Caetano et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Characterization of the acerola industrial residues and prospection of their potential application as antioxidant dietary fiber source

2018

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The present work aimed to evaluate the residue generated by the processing industry of acerola juice as a natural source of nutritional compounds and dietary antioxidant fiber. The determination of the dietary fiber, extraction and determination of phenolic compounds and antioxidants associated with dietary fiber in triplicates, expressed as mean values ± standard deviation, were performed. The pulp and refiner residues showed high contents of bioactive compounds and polyphenols, both presented high content of total dietary fiber, associated to the antioxidant activity. Ot is concluded that it is a material of high functional value and with beneficial health properties, being able to add value to products that have it as raw material.

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“…These antioxidants solubility in a specific solvent is a peculiar characteristic of the phytochemicals present in the food matrix, which explains the inexistence of a universal procedure to measure the total antioxidant capacity and phenolic content. It also demonstrates the need for a meticulous selection of the extraction method for each natural source of antioxidants (Caetano et al, 2011;Frankel and Meyer, 2000;Sanchez-Moreno, 2002). Solvents extraction using water, methanol, ethanol, acetone, propanol, ethyl acetate, and dimethylformamide in various proportions have been commonly used for the extraction of phenolic from fruits and their waste.…”

Section: Introductionmentioning

confidence: 99%

“…Solvents extraction using water, methanol, ethanol, acetone, propanol, ethyl acetate, and dimethylformamide in various proportions have been commonly used for the extraction of phenolic from fruits and their waste. This is due to wide range of phenolic compounds that these extractants can dissolve (Caetano et al, 2011). Still, the extraction method must enable complete extraction of the compounds of interest and must avoid their chemical modification (Zuo, 2002).…”

Section: Introductionmentioning

confidence: 99%

Effect of different extracting solvents on antioxidant activity and phenolic compounds of a fruit and vegetable residue flour

Santos

Gonçalves

2016

Sci.agropecu

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In order to quantify antioxidant capacity in food products, several methods have been proposed over the years. Among them, DPPH radical is widely used to determine the antioxidant capacity of different substrates. However, it is known that different types of extractants, providing different responses, can extract a variety of bioactive compounds. Besides, storage time seems to interfere in the stability of these substances. Integral use of fruits and vegetables has been proposed along the years as a means of reducing environmental pollution and give a better destination to by-products from food industries. Thus, this study aimed to evaluate the antioxidant potential of a fruit and vegetables residue flour (FVR) with sequential and non-sequential extraction, in order to evaluate its antioxidant activity and phenolic compounds. And these compounds stability during storage of 180 days. It was observed that in non-sequential extraction, water was able to reduce by 74% the radical; however, at sequential extraction process, using six different extractors, each one was able to reduce at least 40% of DPPH. The total soluble phenolic contents in sequential extraction were 22.49 ± 1.59 mg GAE/g FVR on the first day and 5.35 ± 0.32 mg GAE/g FVR after 180 days.

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Evaluation of antioxidant activity of agro-industrial waste of acerola (Malpighia emarginata D.C.) fruit extracts

Cited by 26 publications

References 23 publications

Phenolic profile and antioxidant activity from peels and seeds of melon (Cucumis melo L. var. reticulatus) and their antiproliferative effect in cancer cells

Phenolic profile and antioxidant activity from peels and seeds of melon (Cucumis melo L. var. reticulatus) and their antiproliferative effect in cancer cells

Characterization of the acerola industrial residues and prospection of their potential application as antioxidant dietary fiber source

Effect of different extracting solvents on antioxidant activity and phenolic compounds of a fruit and vegetable residue flour

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