CCS - DFAR - Artigos publicados em periódicos

URI Permanente para esta coleçãohttps://repositorio.ufrn.br/handle/1/46

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Mangaba residue (Hancornia Speciosa GOMES) potentially used for producing antioxidants and lignocellulosic enzymes
(Oriental Scientific Publishing Company, 2019-03) Jácome, Millena Cristiane de Medeiros Bezerra; Jácome, João Maria Martins; Padilha, Carlos Eduardo de Araújo; Arrais, Murilo Ricardo Do Nascimento; Sousa Júnior, Francisco Canindé de; Pereira, Camila Gambini; Santos, Everaldo Silvino dos
This study investigates the mangaba residue (Hancornia speciosa Gomes) and used as a substrate for the production of enzymes by semi-solid fermentation (SSF) using Aspergillus niger. The physical-chemical and bioactive attributes of mangaba bagasse and its extracts were addressed. Polyphenols concentrations of 564.1 ± 0.047 mg of gallic acid / g of oil and Total Antioxidant Activity - TCA of 95.46 ± 1.58 mg ascorbic acid / g ethanolic extract were found. In addition to the higher enzymatic production of lipase (50.11 ± 0.02 U / g) and pectinase (0.45 ± 0.01 U / g) through SSF.In general, in comparison with other similar residues and other works the results presented by the mangaba residue are relevant because it is an inexpensive raw material with potential added value to be exploited for the production of enzymes by fermentation in solid substrate using A Niger and extraction of antioxidant compounds
Yellow mombin pulp residue valorization for pectinases production by Aspergillus niger IOC 4003 and its application in juice clarification
(Elsevier, 2020-11) Santos, Everaldo Silvino dos; Rocha, Juliene da Câmara; Araújo, Jaciara da Silva; Paiva, Wilza Kimilly Vital de; Ribeiro, Ellane Sabryna Sena; Padilha, Carlos Eduardo de Araújo; Assis, Cristiane Fernandes de; Macêdo, Gorete Ribeiro de; Sousa Júnior, Francisco Canindé de
Pectinases are enzymes responsible for cleaving pectin and other pectic polysaccharides in galacturonic acid monomers. They are widely applied in industrial sectors. In this context, the present study evaluated polygalacturonase (PG), pectin lyase (PMGL) and FPase production by Aspergillus niger IOC 4003 in solid-state fermentation using yellow mombin pulp residue as substrate. Three parameters were investigated for extraction of PG such as temperature, pH stability and ionic strength. The action of PG was assessed under different states of temperature and pH as well in yellow mombin juice clarification. The antibacterial activity of yellow mombin juice was additionally evaluated. Results revealed that the highest yield of PG produced (38.22 ± 0.63 U/g) was achieved at 72 h fermentation using washed yellow mombin pulp residue. Characterization studies indicated stability of PG for 2 h at 30 and 40 °C with pHs between 4 and 6. The PG applied in the yellow mombin was able to reduce turbidity by 41% and viscosity by 52%. Also, it was able to increase color by 36% and antioxidant capacity by 39%. Finally, the yellow mombin juice exhibited antibacterial activity against Staphylococcus aureus, Enterococcus faecalis, Escherichia coli and Klebsiella pneumoniae. Hence, this study demonstrated the feasibility of using tropical fruit residues from industries for pectinases synthesis and showed their application in the food industry

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