Microbiología: Envíos recientes
Mostrando ítems 21-40 de 1169
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Arcobacter Isolation from Minced Beef Samples in Costa Rica
(2017)The presence of Arcobacter spp. in minced meat (including beef) samples has been well documented in different countries, with varying frequencies. Nevertheless, the only Latin American country reporting this bacterium in ... -
Degradation of naproxen and carbamazepine in spiked sludge by slurry and solid-phase Trametes versicolor systems
(2010-04)rowth and activity of the white-rot fungus Trametes versicolor on sewage sludge were assessed in bio slurry and solid-phase systems. Bioslurry cultures with different loads of sludge (10%, 25% and 38%, w/v) were performed. ... -
Prevalencia de niveles bajos de 25(OH)-vitamina D en universitarios costarricenses
(2023)Objetivo: Describir la prevalencia de hipovitaminosis D3 y sus características clínicas y bioquímicas en una población de universitarios costarricenses. Métodos: Investigación transversal y descriptiva en un total de 118 ... -
Antibody-dependent enhancement of toxicity of myotoxin II from Bothrops asper
(2024)Improved therapies are needed against snakebite envenoming, which kills and permanently disables thousands of people each year. Recently developed neutralizing monoclonal antibodies against several snake toxins have ... -
Fungal contamination of stored automobile-fuels in a tropical environment
(2010-10)Because of the lack of reports, the base levels of microbial contamination on stored fuels are unknown in tropical regions and it is unclear whether these levels have some influence on fuel quality parameters. Therefore, ... -
Toxinological profile and histopathological alterations induced by Bothrocophias campbelli venom from Colombia
(2024)Snakebite envenomings most frequently reported in Colombia are caused by snakes of the genera Bothrops, Bothriechis, Bothrocophias, and Porthidium. Their venoms induce local and systemic pathophysiological effects, sometimes ... -
Arcobacter: Comparison of Isolation Methods, Diversity, and Potential Pathogenic Factors in Commercially Retailed Chicken Breast Meat from Costa Rica
(2014)Arcobacter species have been recognized as potential food- and waterborne pathogens. The lack of standardized isolation methods and the relatively scarce knowledge about their prevalence and distribution as emerging pathogens ... -
Re-inoculation strategies enhance the degradation of emerging pollutants in fungal bioaugmentation of sewage sludge
(2014)The use of Trametes versicolor has been partially successful in the removal of some pharmaceuticals from sewage sludge in laboratory-scale biopile systems. The application of two strategies for the re-inoculation of ... -
Uso del “Pesticide Impact Rating Index” (PIRI) para estimar la peligrosidad del uso de plaguicidas en el cultivo de cebolla (Allium cepa L.)
(2014)Se utilizó el programa “Pesticide Impact Rating Index” (PIRI) para estimar la peligrosidad del uso de 30 plaguicidas en el cultivo de cebolla (Allium cepa L.) para la calidad del agua de la quebrada Sanatorio, ubicada ... -
Removal of pesticides and ecotoxicological changes during the simultaneous treatment of triazines and chlorpyrifos in biomixtures
(2017-09)Biopurification systems constitute a biological approach for the treatment of pesticide-containing wastewaters produced in agricultural activities, and contain an active core called biomixture. This work evaluated the ... -
Elimination of fungicides in biopurification systems: Effect of fungal bioaugmentation on removal performance and microbial community structure
(2017-11)Bioaugmentation with ligninolytic fungi represents a potential way to improve the performance of biomixtures used in biopurification systems for the treatment of pesticide-containing agricultural wastewater. The fungus ... -
Validation of a GC–MS method for the estimation of dithiocarbamate fungicide residues and safety evaluation of mancozeb in fruits and vegetables
(2014)A sensitive and rugged residue analysis method was validated for the estimation of dithiocarbamate fungicides in a variety of fruit and vegetable matrices. The sample preparation method involved reaction of dithiocarbamates ... -
Removal of carbamates and detoxification potential in a biomixture: Fungal bioaugmentation versus traditional use
(2017)The use of fungal bioaugmentation represents a promising way to improve the performance of biomixtures for the elimination of pesticides. The ligninolyitc fungus Trametes versicolor was employed for the removal of three ... -
Accelerated biodegradation of selected nematicides in tropical crop soils from Costa Rica
(2014)Degradation and mineralization behavior of select ed nematicides was studied in soil samples from fields culti vated with banana, potato, and coffee. Degradation assays in most of the studied soils revealed shorter ... -
Aging of biomixtures: Effects on carbofuran removal and microbial community structure
(2017)The aim of this work was to determine the efficiency of a straw/compost/soil biomixture for pesticide depuration during its aging and continuous use, for a period of over a year, based on its capacity to remove carbofuran ... -
Simultaneous removal of structurally different pesticides in a biomixture: Detoxification and effect of oxytetracycline
(2017-02)The biopurification systems (BPS) used for the treatment of pesticide-containing wastewater must present a versatile degrading ability, in order to remove different active ingredients according to the crop protection ... -
Effects of oxytetracycline on the performance and activity of biomixtures: Removal of herbicides and mineralization of chlorpyrifos
(2017)Biopurification systems (BPS) are design to remove pesticides from agricultural wastewater. This work assays for the first time the potential effect of an antibiotic of agricultural use (oxytetracycline, OTC) on the ... -
Antibiotics do not affect the degradation of fungicides and enhance the mineralization of chlorpyrifos in biomixtures
(2017)The use of antibiotics in agriculture produces residues in wastewaters. The disposal of such wastewaters in biopurification systems (BPS) employed for the treatment of pesticides could result in the inhibition of the ... -
Zoonotic species of the genus arcobacter in poultry from different regions of Costa Rica
(2015)In recent years, emerging pathogens have received special attention due to their consequences for public health. Given that Arcobacter has been isolated in Costa Rica from commercial meat poultry samples, the aim of this ... -
Venomics of Leiurus abdullahbayrami, the most lethal scorpion in the Levant region of the Middle East
(2024)The scorpion Leiurus abdullahbayrami has been associated with severe/lethal envenomings throughout the Levant region of the Middle East, encompassing Turkey, Syria, and Lebanon, and only scarce information is available on ...