Mechanochemical pretreatment (MCPT) was applied to the extraction and separation of tea polyphenols (TP) and caffeine from tea leaves. Tea leaves were treated by mechanical activation with presence of Na2CO3(MC) for 75 s. One gram of obtained powder was taken for extraction and s...
SUMMARY: Cisplatin (Cis) is an important chemotherapeutic agent used in cancer treatment. Males exposed to Cis were reported to exhibit testicular toxicity. Cis-induced testicular toxicity is mediated by oxidative stress, inflammation, testosterone inhibition and apoptosis. Accordingly, this study was co...
Camellia sinensis/química,
Extractos Vegetales/farmacología,
Té/química,
Infliximab/farmacología,
Cisplatino/toxicidad,
Testículo/efectos de los fármacos,
Recuento de Espermatozoides,
Factor de Necrosis Tumoral alfa/antagonistas & inhibidores,
Apoptosis,
Estrés Oxidativo,
Inflamación,
Ratas Sprague-Dawley,
Extractos Vegetales/química,
Inmunohistoquímica,
Malondialdehído/análisis,
Glutatión/análisis,
Testículo/patología
Las catequinas del té verde (Camellia sinensis) (CTV) presentan efectos benéficos para la salud asociados a su potencial antioxidante. Por otra parte, el estrés oxidante es una de las vías de inducción de daño genotóxico. De ahí que, en la presente revisión se realizó un análisis de los efecto...
RESUMEN: Objetivo: Determinar la estabilidad cromática de una cerámica de feldespato monocromática utilizada en sistema CAD/CAM sometida a inmersión de diferentes soluciones de tinción. Materiales y métodos: 90 discos de cerámica feldespática monocromática, divididos en 3 grupos según solución...
Abstract: Freshly prepared apple tea wine (a combination of tea extract and apple juice) is having yeasty and dull flavour, which needs to be improved to increase the acceptability of this product. Therefore, an attempt has been made for artificial ageing of apple tea wine using different wood chips to i...
Freitas, Luana Cristina de;
Sousa, Luiz Gustavo de;
Leite, Guilherme Luciano;
Scalize, Priscilla Hakime;
Pitol, Dimitrius Leonardo;
Righetti, Mariah Acioli;
Ricardo, Vitória;
Mello, Edneia Corrêa de;
Bombonato-Prado, Karina Fittipaldi;
Regalo, Simone Cecilio Hallak;
Siessere, Selma.
Impairing osteoporosis progression is a challenge, and recently the role of antioxidants has been associated to bone metabolism. Green tea extract is rich in catechins, especially epigallocatechin gallate (EGCG), which may help control osteoporosis damage in bone tissue. This investigation evaluated the ...
Os Antioxidantes são substancias
que retardam o aparecimento de alterações
oxidativas tanto nos seres
vivos como nos alimentos. Quimicamente,
são compostos aromáticos
que contém em sua estrutura, pelo
menos, um grupamento hidroxila.
Estes podem ser naturais ou sintéticos,
sendo o último amplament...
Background: Inferior Tieguanyin oolong tea leaves were treated with tannase. The content and bioactivity of catechins in extracts from the treated tea leaves were investigated to assess the improvement in the quality of inferior Tieguanyin oolong tea. Results: Analysis showed that after treatment, the es...
Té/enzimología,
Hidrólisis,
Hojas de la Planta/enzimología,
Catálisis,
Hidrolasas de Éster Carboxílico/metabolismo,
Té/química,
Catequina/análisis,
Fermentación,
Antioxidantes,
Té/metabolismo,
Lipasa/antagonistas & inhibidores,
Lipasa/metabolismo,
Temperatura
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 Objective Green tea extract has been advocated as a matrix metalloproteinase (MMP) inhibitor; however, its effect on bond durability to caries-affected dentin has never been reported. Thus, the aim of this in vitro study was to evaluate the effect of two MMP inhibitors (2% chlorhexidine and 2%...
Grabado Ácido Dental/métodos,
Análisis de Varianza,
Antiinfecciosos Locales/química,
Clorhexidina/química,
Recubrimiento Dental Adhesivo/métodos,
Caries Dental/tratamiento farmacológico,
Cementos Dentales/química,
Dentina/efectos de los fármacos,
Recubrimientos Dentinarios/química,
Ensayo de Materiales,
Ácidos Fosfóricos/química,
Distribución Aleatoria,
Reproducibilidad de los Resultados,
Propiedades de Superficie,
Té/química,
Resistencia a la Tracción,
Factores de Tiempo
