Abstract Successful animal rearing under laboratory conditions for commercial processes or laboratory experiments is a complex chain that includes several stressors (e.g., sampling and transport) and incurs, as a consequence, the reduction of natural animal conditions, economic losses and inconsistent an...
Abstract The aim of this study was to compare vitroplants Catasetum x apolloi grown under natural light and artificial light and different concentrations of potassium silicate, providing data on the anatomical differentiation that aids the acclimatization process of this species. Plants from in vitro see...
Abstract The aim of this study was to measure soil microbial biomass and soil surface fauna in undisturbed and disturbed Cerrado sensu stricto (Css) from Sete Cidades National Park, Northeast Brazil. The following sites were sampled under Cerrado sensu stricto (Css) at the park: undisturbed and disturbed...
Agricultura,
Biomasa,
Brasil,
Calcio/química,
Ecosistema,
Concentración de Iones de Hidrógeno,
Insectos,
Fósforo/química,
Potasio/química,
Estaciones del Año,
Microbiología del Suelo,
Suelo,
Arañas
Abstract Specific proteases capable of degrading native triple helical or denatured collagen have been required for many years and have a large spectrum of applications. There are few complete reports that fully uncover production, characterization and purification of fungi collagenases. In this review, ...
Colágeno/metabolismo,
Colagenasas/metabolismo,
Hongos/metabolismo,
Colágeno/química,
Colagenasas/biosíntesis,
Colagenasas/química,
Colagenasas/aislamiento & purificación,
Medios de Cultivo,
Activación Enzimática,
Hongos/clasificación,
Proteolisis,
Especificidad por Sustrato
ABSTRACT A new lactone, 7-epi-griffonilide (1), and six known compounds, 2, 3a - 3c, 4a and 4b, were isolated from the leaves of Bauhinia pentandra (Fabaceae). The structures elucidation of 1 and 2 were based on detailed 2D NMR techniques and spectral comparison with related compounds, leading to complet...
ABSTRACT Linalool is the main compound of many essential oils and occurs in two isomeric forms: S-(+)- and R-(-)-linalool. This study aimed to determine if linalool isomers have different antimicrobial and anesthetic properties in fish. For this purpose, these compounds were previously isolated from Lipp...
Monoterpenos Acíclicos,
Aeromonas hydrophila/efectos de los fármacos,
Anestésicos/farmacología,
Antibacterianos/farmacología,
Bagres,
Hipnóticos y Sedantes/farmacología,
Lippia/química,
Pruebas de Sensibilidad Microbiana,
Monoterpenos/química,
Monoterpenos/aislamiento & purificación,
Monoterpenos/farmacología,
Ocimum/química,
Aceites Volátiles/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Estereoisomerismo,
Factores de Tiempo
GOLUNSKI, SIMONE;
SILVA, MARCELI F;
MARQUES, CAMILA T;
ROSSETO, VANUSA;
KAIZER, ROSILENE R;
MOSSI, ALTEMIR J;
RIGO, DIANE;
DALLAGO, ROGÉRIO M;
DI LUCCIO, MARCO;
TREICHEL, HELEN.
ABSTRACT The present study evaluated the purification of inulinase by changing the ionic strength of the medium by addition of NaCl and CaCl2 followed by precipitation with n-propyl alcohol or iso-propyl alcohol. The effects of the concentration of alcohols and the rate of addition of alcohols in the cru...
Alcoholes/química,
Cloruro de Calcio/química,
Precipitación Química,
Medios de Cultivo/química,
Glicósido Hidrolasas/química,
Glicósido Hidrolasas/aislamiento & purificación,
Kluyveromyces/química,
Kluyveromyces/aislamiento & purificación,
Concentración Osmolar,
Valores de Referencia,
Reproducibilidad de los Resultados,
Sales (Química)/química,
Cloruro de Sodio/química,
Solventes/química
ABSTRACT Mansoa hirsuta (Bignoniaceae) is a native plant from caatinga in Brazilian semiarid. This plant has been locally used as antimicrobial and hypoglycemiant agents, but their action mechanisms and toxicity remain largely unknown. Therefore, we evaluated the composition and antioxidant, cytoprotecti...
Antioxidantes/aislamiento & purificación,
Antioxidantes/farmacología,
Bignoniaceae/química,
Brasil,
Supervivencia Celular/efectos de los fármacos,
Células Cultivadas,
Cricetinae,
Citoprotección,
Etanol/química,
Fibroblastos/efectos de los fármacos,
Hipoglucemiantes/aislamiento & purificación,
Hipoglucemiantes/farmacología,
Cebollas/efectos de los fármacos,
Extractos Vegetales/farmacología,
Hojas de la Planta/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Triterpenos/química,
alfa-Amilasas/química
ABSTRACT Propolis produced by selected bees Apis mellifera were collected from March to June of 2013 and in March of 2015 and analyzed in order to evaluate the influence of climate, colony of origin, and food supplementation of colonies on the content of total phenolic and flavonoid by chromatographic an...
Antioxidantes/análisis,
Abejas/fisiología,
Ácidos Cafeicos/análisis,
Cromatografía Líquida de Alta Presión,
Ácidos Cumáricos/análisis,
Suplementos Dietéticos,
Flavonoides/análisis,
Hidroxibenzoatos/análisis,
Indicadores y Reactivos,
Análisis Multivariante,
Análisis de Componente Principal,
Própolis/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Estaciones del Año,
Temperatura
ABSTRACT The capybara (Hydrochoerus hydrochaeris) and nutria (Myocastor coypus) are herbivorous semi-aquatic rodents. Although these rodents occur in sympatry in southern South America, little is known about how the two species interact in relationship to food resources. In this context, the aim of this ...
