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1.
Food Chem ; 175: 409-16, 2015 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-25577099

RESUMO

The present focused on the study of the antimutagenic and antiproliferative potential of pulp Jackfruit (Artocarpus heterophyllus Lam) extract, using Salmonella typhimurium tester strains TA98 and TA100 with metabolic activation (S9) and a cancer cell line M12.C3.F6 (murine B-cell lymphoma), respectively. Jackfruit pulp extract was sequentially fractionated by chromatography (RP-HPLC) and each fraction was tested for antimutagenic and antiproliferative activities. The organic extracts obtained from Jackfruit pulp reduced the number of revertants caused by aflatoxin B1 (AFB1) and proliferation of cells M12.C3.F6; a dose-response relationship was showed. Sequential RP-HPLC fractionation of the active extracts produced both antimutagenic and/or antiproliferative fractions. These results suggested that the Jackfruit contained compounds with chemoprotective properties to reduce the mutagenicity of AFB1, also proliferation of a cancer cell line.


Assuntos
Antimutagênicos/farmacologia , Antineoplásicos/farmacologia , Artocarpus/química , Extratos Vegetais/farmacologia , Animais , Antioxidantes/farmacologia , Linhagem Celular Tumoral , Cromatografia Líquida de Alta Pressão , Avaliação Pré-Clínica de Medicamentos , Ensaios de Seleção de Medicamentos Antitumorais , Masculino , Camundongos , Testes de Mutagenicidade , Ratos , Ratos Sprague-Dawley
2.
Food Chem ; 159: 267-72, 2014 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-24767054

RESUMO

Bioactive compounds have become very important in the food and pharmaceutical markets leading research interests seeking efficient methods for extracting these bioactive substances. The objective of this research is to implement preparative scale obtention of mangiferin and lupeol from mango fruit (Mangifera indica L.) of autochthonous and Ataulfo varieties grown in Nayarit, using emerging extraction techniques. Five extraction techniques were evaluated: maceration, Soxhlet, sonication (UAE), microwave (MAE) and high hydrostatic pressures (HHP). Two maturity stages (physiological and consumption) as well as peel and fruit pulp were evaluated for preparative scale implementation. Peels from Ataulfo mango at consumption maturity stage can be considered as a source of mangiferin and lupeol using the UEA method as it improves extraction efficiency by increasing yield and shortening time.


Assuntos
Métodos Analíticos de Preparação de Amostras/métodos , Mangifera/química , Triterpenos Pentacíclicos/isolamento & purificação , Extratos Vegetais/isolamento & purificação , Xantonas/isolamento & purificação , Frutas/química , Triterpenos Pentacíclicos/análise , Extratos Vegetais/análise , Xantonas/análise
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