Abstract Introduction: According to the literature, children's overall reactivity to stress is associated with their socioeconomic status and family environment. In turn, it has been shown that reactivity to stress is associated with cognitive performance. However, few studies have systematically teste...
Cognición/fisiología,
Ambiente,
Función Ejecutiva/fisiología,
Familia,
Hidrocortisona/análisis,
Memoria a Corto Plazo/fisiología,
Pruebas Psicológicas,
Psicología Infantil,
Saliva/química,
Clase Social,
Estrés Psicológico/metabolismo
Abstract The evaluation of abiotic and biotic variables can provide information for understanding the structure and function of lotic systems. To obtain this information, measurements of 15 chemical and physical variables and of phytoplankton were conducted at two sampling stations. The present study aim...
Abstract The effects of seasonal variations and the methods of collection of propolis produced by Africanized honey bees Apis mellifera Linnaeus, 1758, on the composition of constituent minerals such as magnesium (Mg), zinc (Zn), iron (Fe), sodium (Na), calcium (Ca), copper (Cu), and potassium (K) were e...
Abejas,
Calcio/análisis,
Cobre/análisis,
Hierro/análisis,
Magnesio/análisis,
Minerales/análisis,
Potasio/análisis,
Própolis/química,
Estaciones del Año,
Sodio/análisis,
Espectrofotometría Atómica,
Zinc/análisis
Abstract The antioxidant and anticandidal activities of leaves obtained from Camellia sinensis by non-fermentation (green and white teas), semi-fermentation (red tea) and fermentation method (black tea) were investigated. It was evaluated the total phenolic content by Folin-Ciocalteau assay; antioxidant ...
Antifúngicos/análisis,
Antifúngicos/farmacología,
Antioxidantes/análisis,
Antioxidantes/farmacología,
Camellia sinensis/química,
Fermentación,
Hemólisis,
Peroxidación de Lípido,
Oxidación-Reducción,
Peroxidasa/metabolismo,
Fenoles/análisis,
Extractos Vegetales,
Hojas de la Planta/química,
Té/química
Abstract The aim of this study was to identify different Clostridium spp. isolated from currency notes from the Ha’il region of Saudi Arabia in September 2014 using MALDI–TOF-MS. Clostridium spp. were identified by Bruker MALDI–TOF-MS and compared with VITEK 2. The confirmation of the p...
Rachid, C. T. C. C;
Pires, C. A;
Leite, D. C. A;
Coutinho, H. L. C;
Peixoto, R. S;
Rosado, A. S;
Salton, J;
Zanatta, J. A;
Mercante, F. M;
Angelini, G. A. R;
Balieiro, Fabiano de Carvalho.
Abstract The sugarcane in Brazil is passing through a management transition that is leading to the abolition of pre-harvest burning. Without burning, large amounts of sugarcane trash is generated, and there is a discussion regarding the utilization of this biomass in the industry versus keeping it in the...
Bacterias/aislamiento & purificación,
Hongos/aislamiento & purificación,
Saccharum/microbiología,
Microbiología del Suelo,
Bacterias/clasificación,
Bacterias/genética,
Biodiversidad,
Brasil,
Hongos/clasificación,
Hongos/genética,
Saccharum/crecimiento & desarrollo,
Estaciones del Año,
Suelo/química
Abstract The aim of this study was to investigate the effectiveness of ultrasound as a conservation method for the inactivation of Escherichia coli inoculated into cactus pear juices (green and purple). Total soluble solids, pH, titratable acidity, and the kinetics of E. coli in cactus pear juices treate...
Cactaceae/microbiología,
Escherichia coli/crecimiento & desarrollo,
Conservación de Alimentos/métodos,
Jugos de Frutas y Vegetales/microbiología,
Ultrasonido/métodos,
Cactaceae/química,
Conservación de Alimentos/instrumentación,
Almacenamiento de Alimentos,
Frutas/química,
Frutas/microbiología,
Viabilidad Microbiana,
Ultrasonido
Abstract Various chemical compounds, including surfactants, when introduced to culture media may increase the permeability of cellular membranes and thereby affect the quantity of metabolites excreted by cells. The aim of the present study was to evaluate the impact of detergents including Triton X-100, ...
Medios de Cultivo/metabolismo,
Eritritol/biosíntesis,
Manitol/metabolismo,
Tensoactivos/metabolismo,
Yarrowia/metabolismo,
Medios de Cultivo/química,
Eritritol/análisis,
Manitol/análisis,
Octoxinol/análisis,
Octoxinol/metabolismo,
Polisorbatos/análisis,
Polisorbatos/metabolismo,
Tensoactivos/análisis
Abstract Oxidative enzymes secreted by white rot fungi can be applied in several technological processes within the paper industry, biofuel production and bioremediation. The discovery of native strains from the biodiverse Misiones (Argentina) forest can provide useful enzymes for biotechnological purpos...
Proteínas Fúngicas/metabolismo,
Lacasa/metabolismo,
Trametes/enzimología,
Argentina,
Estabilidad de Enzimas,
Proteínas Fúngicas/química,
Proteínas Fúngicas/genética,
Lacasa/química,
Lacasa/genética,
Temperatura,
Trametes/genética,
Trametes/aislamiento & purificación
Abstract Extraction of compounds from microalgae requires cell disruption as a pretreatment to increase extraction yield. Botryococcus braunii is a microalga with a significant content of carotenoids and other antioxidant compounds, such as chlorophylls. Cell disruption of B. braunii using CO2 rapid depr...
