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논문 기본 정보

자료유형
학술저널
저자정보
Luján Lidianys María Lewis (Laboratorio de Microbiología y Micotoxinas Departamento de Investigación y Posgrado en Alimentos Un) Rosas-Burgos Ema Carina (Laboratorio de Microbiología y Micotoxinas Departamento de Investigación y Posgrado en Alimentos Un) Brauer Josafat Marina Ezquerra (Laboratorio de Microbiología y Micotoxinas Departamento de Investigación y Posgrado en Alimentos Un) Burboa-Zazueta María Guadalupe (Departamento de Investigaciones Científicas y Tecnológicas Blvd. Luis Encinas y Rosales S/N Col. Ce) Assanga Simon Bernard Iloki (Department of Biological Chemical Sciences. Sonora University Blvd. Luis Encinas y Rosales. Col. Ce) Castro Teresa del Castillo (Department of Research on Polymers and Materials Sonora University. Blvd. Luis Encinas y Rosales. C) Penton Giselle (Centro de Ingeniería Genética y Biotecnología Ave 31 entre 158 y 190 Cubanacán Playa Habana Cuba CP) Plascencia-Jatomea Maribel (Laboratorio de Microbiología y Micotoxinas Departamento de Investigación y Posgrado en Alimentos Un)
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제32권 제8호
발행연도
2022.8
수록면
989 - 1,002 (14page)
DOI
10.4014/jmb.2206.06043

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Cephalopods, in particular octopus (Octopus vulgaris), have the ability to alter their appearance or body pattern by showing a wide range of camouflage by virtue of their chromatophores, which contain nanostructured granules of ommochrome pigments. Recently, the antioxidant and antimicrobial activities of ommochromes have become of great interest; therefore, in this study, the pH-dependent redox effect of the extraction solvent on the antioxidant potential and the structural characterization of the pigments were evaluated. Cell viability was determined by the microdilution method in broth by turbidity, MTT, resazurin, as well as fluorescence microscopy kit assays. A Live/ Dead Double Staining Kit and an ROS Kit were used to elucidate the possible inhibitory mechanisms of ommochromes against bacterial and fungal strains. The results obtained revealed that the redox state alters the color changes of the ommochromes and is dependent on the pH in the extraction solvent. Natural phenoxazinone (ommochromes) is moderately toxic to the pathogens Staphylococcus aureus, Bacillus subtilis, Salmonella Typhimurium and Candida albicans, while the species Pseudomonas aeruginosa and Pseudomonas fluorescens, and the filamentous fungi Aspergillus parasiticus, Alternaria spp. and Fusarium verticillioides, were tolerant to these pigments. UV/visible spectral scanning and Fourier- transform infrared spectroscopy (FTIR) suggest the presence of reduced ommatin in methanol/ HCl extract with high intrinsic fluorescence.

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