Estudo de bactérias do gênero Gluconobacter: isolamento, purificação, identificação fenotípica e molecular

Oliveira, André Luiz Dorini de; Santos, Vitório; Liotti, Rhavena Graziela; Zilioli, Estevão; Spinosa, Wilma Aparecida; Ribeiro-Paes, João Tadeu

doi:10.1590/s0101-20612010000100016

Cited by 2 publications

(1 citation statement)

References 8 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The microbial population was monitored at the end of the fermentation. The samples were tenfold diluted in 0.1% peptone saline water and spread plated in MYP (Manitol Yeast Peptone) for acetic acid bacteria (AAB) and in GYMP (Glucose, Yeast Extract, Malt Extract, and Peptone) with 0.05% chloramphenicol for yeast enumeration [53]. All plates were incubated at 30 °C for five days; the relative humidity was maintained at 90% [53].…”

Section: Microbial Enumerationmentioning

confidence: 99%

Evaluation of antibacterial activity of black and green tea kombucha

Barbosa

Santos²,

Costa³

et al. 2022

Sci. Plena

View full text Add to dashboard Cite

Currently, the search for natural antimicrobial agents has increased. Thereat, plant extracts, products of fermentative processes, and microbial growth have been tested. Kombucha is a fermented beverage that resulted from the fermentation of the infusion of Camellia sinensis. There are reports about biological activities, such as anti-inflammatory, digestibility, antioxidant, antimicrobial, and others. The study aimed to evaluate the antibacterial activity of black and green tea kombucha against eight foodborne pathogenic microorganisms. The antibacterial activity was analyzed using the agar well diffusion method. Each kombucha consisted of three treatments: natural, neutralized, and filtered. The solutions of acetic acid (4% v.v-1) and kanamycin (30 µg.L-1) were used as a control. The black and green tea kombucha beverages, not neutralized, showed antibacterial activity against Escherichia coli serotypes. Black and green tea kombucha did not show antibacterial activity against Staphylococcus aureus, Shigella Flexneri, and Salmonella Typhimurium. The inhibition may be attributed to acetic acid production during the fermentation process. Therefore, it appears that kombucha may have a potential antimicrobial agent. Keywords: Camellia sinensis, fermentation, antimicrobial.

show abstract

Section: Microbial Enumerationmentioning

confidence: 99%

Evaluation of antibacterial activity of black and green tea kombucha

Barbosa

Santos²,

Costa³

et al. 2022

Sci. Plena

View full text Add to dashboard Cite

show abstract

Fijación biológica de nitrógeno en caña de azúcar

2022

View full text Add to dashboard Cite

Contextualización: La agricultura es la cuarta causa de emisión de gases efecto invernadero y emite grandes cantidades de los llamados “gases que no son CO2”, incluyendo N2O y CH4 con un poder de calentamiento de 265 y 28 veces respectivamente, mayor en comparación con el CO2. Vacío de conocimiento: Al aplicar fertilizantes basados en nitrógeno (N) amoniacalo ureico sobre un cultivo, se incrementan las emisiones de N2O debido al aporte de la oxidación biológica de amonio a nitrato. En el cultivo de la caña de azúcar, el N es el nutrimento más limitante en la producción. Estudios iniciados en suelos brasileros fertilizados con baja o ninguna aplicación de N, demostraron que la contribución de microorganismos diazotróficos(fijadores de nitrógeno), podría suplir entre el 30% y 70% las necesidades de este nutriente.Propósito: La presente revisión tiene como objetivo, el aportar información relevante sobre la actividad funcional de microorganismos diazotróficos en el rendimiento del cultivo de la caña de azúcar y estimular el uso de prácticas de fertilizacióncon menor impacto ambiental; principalmente un detrimento en la emisión de gases efecto invernadero originados a partir de fuentes de nitrógeno de síntesis química.Conclusión: La fertilización nitrogenada a futuro, podría sustituirse parcial o totalmente con el aprovechamiento funcional de microrganismos fijadores de nitrógeno, con expectativas de mejorar condiciones ambientales causadas por fertilizantes nitrogenados de síntesis química.

show abstract

Estudo de bactérias do gênero Gluconobacter: isolamento, purificação, identificação fenotípica e molecular

Cited by 2 publications

References 8 publications

Evaluation of antibacterial activity of black and green tea kombucha

Evaluation of antibacterial activity of black and green tea kombucha

Fijación biológica de nitrógeno en caña de azúcar

Contact Info

Product

Resources

About