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Título
Evaluation of the Phenolic Profile of Castanea sativa Mill. By-Products and Their Antioxidant and Antimicrobial Activity against Multiresistant Bacteria
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Antioxidants
Número de la revista
1
Cita Bibliográfica
Silva, V., Falco, V., Dias, M. I., Barros, L., Silva, A., Capita, R., Alonso Calleja, C., Amaral, J. S., Igrejas, G., Ferreira, I. C. F. R., & Poeta, P. (2020). Evaluation of the phenolic profile of Castanea sativa mill. By-products and their antioxidant and antimicrobial activity against multiresistant bacteria. Antioxidants, 9(1). https://doi.org/10.3390/ANTIOX9010087
Editorial
MDPI
Fecha
2020
Resumen
[EN] The chestnut industry generates a large amount of by-products. These agro-industrial wastes have been described as potential sources of phenolic compounds with high bioactive potential. Therefore, we aimed to extract the phenolic compounds from chestnut by-products and assess their antioxidant potential and evaluate their antimicrobial activity against multidrug resistant bacteria. The individual phenolic compounds in the ethanolic extracts of chestnut shell, inner shell, bur, and leaves were characterized by HPLC-DAD/electrospray ionization (ESI)-MS. The antioxidant properties were determined by DPPH and ABTS assays. The minimum inhibitory concentration (MIC) and the antimicrobial susceptibility was performed using the Kirby-Bauer disc diffusion method against 10 bacterial strains. The major phenolic compounds identified in the extracts were trigalloyl-HHDP-glucose, gallic acid, quercetin, and myricetin glycoside derivatives. All chestnut by-products presented promising antioxidant activity in both assays, with leaf samples the ones presenting the highest antioxidant capacity. The inner shell’s extract was effective against all Gram-positive and two Gram-negative bacteria; nevertheless, all extracts showed antibacterial activity. Staphylococcus epidermidis showed susceptibility to all extracts while none of the extracts was able to suppress the growth of Escherichia coli and Salmonella enteritidis. Chestnut by-products are a source of phenolic compounds with prominent antioxidant and antimicrobial activities. Nevertheless, further studies should be conducted to assess the correlation between phenolic compounds and the bioactivities obtained
Materia
Palabras clave
Peer review
SI
ID proyecto
- info:eu-repo/grantAgreement/AEI/ Programa Estatal de I+D+i Orientada a los Retos de la Sociedad / RTI2018-098267-R-C33/ES/ ALTERNATIVAS AL USO DE DESINFECTANTES EN LA INDUSTRIA ALIMENTARIA DIRIGIDAS A REDUCIR LA SUPERVIVENCIA DE LISTERIA MONOCYTOGENES Y SALMONELLA ENTERICA SOBRE LAS SUPERFICIES//
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DOI
Versión del editor
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