Listar Ciencias Biológicas – MAJUMBA por autor "d2f5e83319552266229537d1d3ffb066"

The first traces of Tetracycline (TE) were detected in human skeletons from Sudan and Egypt, finding that it may be related to the diet of the time, the use of some dyes, and the use of soils loaded with microorganisms, ...

Las rizobacterias promotoras de crecimiento vegetal son reconocidas y estudiadas por sus efectos benéficos en varios cultivos. Cepas de los géneros Azotobacter y Pseudomonas se aislaron de suelo rizosférico de cultivos de ...

Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases
...
Gamboa Mora, María Cristina | 2022-07-11

The first traces of Tetracycline (TE) were detected in human skeletons from Sudan and Egypt, finding that it may be related to the diet of the time, the use of some dyes, and the use of soils loaded with microorganisms, such as Streptomyces spp., among other microorganisms capable of producing antibiotics. However, most people only recognise authors dating between 1904 and 1940, such as Ehrlich, Domagk, and Fleming. Antibiotics are the therapeutic option for countless infections treatment; unfortunately, they are the second most common group of drugs in wastewaters worldwide due to failures in industrial waste treatments (pharmaceutics, hospitals, senior residences) and their irrational use in humans and animals. The main antibiotics problem lies in delivered and non-prescribed human use, use in livestock as growth promoters, and crop cultivation as biocides (regulated activities that have not complied in some places). This practice has led to the toxicity of the environment as antibiotics generate eutrophication, water pollution, nutrient imbalance, and press antibiotic resistance. In addition, the removal of antibiotics is not a required process in global wastewater treatment standards. This review aims to raise awareness of the negative impact of antibiotics as residues and physical, chemical, and biological treatments for their degradation. We discuss the high cost of physical and chemical treatments, the risk of using chemicals that worsen the situation, and the fact that each antibiotic class can be transformed differently with each of these treatments and generate new compounds that could be more toxic than the original ones; also, we discuss the use of enzymes for antibiotic degradation, with emphasis on laccases.

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Isolation and characterization of rhizobacteria associated with rice crops (Oryza sativa L.) in Norte de Santander (Colombia)
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Florez Márquez, Jessica Ducley | 2017-06

Las rizobacterias promotoras de crecimiento vegetal son reconocidas y estudiadas por sus efectos benéficos en varios cultivos. Cepas de los géneros Azotobacter y Pseudomonas se aislaron de suelo rizosférico de cultivos de arroz (Oryza sativa L.) de 10 fincas en el distrito de riego del río Zulia, Norte de Santander, Colombia. El aislamiento bacteriano se hizo a partir de gránulos de suelo y diluciones seriadas de suelo, sembradas en agar Ashby para Azotobacter y King B para Pseudomonas fluorescentes, respectivamente. Cuarenta y dos aislamientos se conservaron en viales con solución salina estéril (0.85 % NaCl) en refrigeración a 4 °C y se ingresaron al Banco de Cepas del Laboratorio de Investigaciones en Biología Aplicada de la Universidad Francisco de Paula Santander, Cúcuta, Colombia. Para seleccionar aislamientos con potencial para el desarrollo de inoculantes microbianos, en todas las cepas se determinó su capacidad de solubilización de fosfato inorgánico, fijación biológica de nitrógeno, síntesis de ácido indoloacético y sideróforos. Con un conglomerado jerárquico de las medianas de las cuatro actividades se seleccionaron cuatro aislamientos por presentar los valores más cercanos a los testigos diseñados como cepas promisorias en las cuatro actividades según el dendrograma de similitudes. Estas cuatro cepas se identificaron como Pseudomonas putida (RzA027 y RzA035), Azotobacter chrococcum (RzA040) y Azotobacter tropicalis (RzA042) mediante amplificación del gen 16S ADNr.

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Listar Ciencias Biológicas – MAJUMBA por autor "d2f5e83319552266229537d1d3ffb066"

Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases

Isolation and characterization of rhizobacteria associated with rice crops (Oryza sativa L.) in Norte de Santander (Colombia)

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Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases

Isolation and characterization of rhizobacteria associated with rice crops (Oryza sativa L.) in Norte de Santander (Colombia)

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Listar Ciencias Biológicas – MAJUMBA por autor "d2f5e83319552266229537d1d3ffb066"

Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases ﻿

Isolation and characterization of rhizobacteria associated with rice crops (Oryza sativa L.) in Norte de Santander (Colombia) ﻿

Envíos recientes

Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases

Isolation and characterization of rhizobacteria associated with rice crops (Oryza sativa L.) in Norte de Santander (Colombia)

Portales Institucionales

Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases

Isolation and characterization of rhizobacteria associated with rice crops (Oryza sativa L.) in Norte de Santander (Colombia)