دورية أكاديمية
AVALIAÇÃO DE COMPOSTOS BIOATIVOS E ATIVIDADE ANTIOXIDANTE DE EXTRATOS DE FOLHAS DE AMOREIRA PRETA (Morus nigra L.) UTILIZANDO PLANEJAMENTO EXPERIMENTAL
| العنوان: | AVALIAÇÃO DE COMPOSTOS BIOATIVOS E ATIVIDADE ANTIOXIDANTE DE EXTRATOS DE FOLHAS DE AMOREIRA PRETA (Morus nigra L.) UTILIZANDO PLANEJAMENTO EXPERIMENTAL |
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| المؤلفون: | Kathlyn Schafranski, Matheus P. Postigo, Luciano Vitali, Gustavo A. Micke, Wagner E. Richter, Eduardo S. Chaves |
| المصدر: | Química Nova, Vol 42, Iss 7, Pp 736-744 |
| بيانات النشر: | Sociedade Brasileira de Química. |
| المجموعة: | LCC:Chemistry |
| مصطلحات موضوعية: | phenolic compounds, Morus nigra, factorial design, Chemistry, QD1-999 |
| الوصف: | Extracts of black mulberry leaves present phytochemicals such as phenolic compounds and minerals. These substances have been studied because they show several health benefits. In this work we report the influence of drying temperature, infusion temperature and extraction time by means of factorial design monitoring the total phenolic content (CFT) of aqueous extracts of leaves of Morus nigra L. The concentrations of CFT, flavonoids, flavonols and antioxidant activity of the extracts were determined by spectrophotometry. The identification and quantification of phenolic compounds were performed by LC-ESI-MS / MS. The determination of the mineral concentration in the black mulberry leaves was performed by ICP-MS. The Pareto and surface response graphs suggested that the most efficient extractions occurred for leaves drying at lower temperatures and using higher infusion temperatures, extraction time did not show significant influence. The extracts presented concentration of CFT from 16.96 ± 0.15 to 5.73 ± 0.33 mg GAE g-1. The analyzes by LC-ESI-MS / MS allowed to identify phenolic substances not yet reported in the literature to date. In addition 10 mineral elements were determined in the black mulberry leaves at mg kg-1 concentrations range. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Spanish; Castilian Portuguese |
| تدمد: | 1678-7064 0100-4042 |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422019004700736&lng=en&tlng=en; https://doaj.org/toc/1678-7064 |
| DOI: | 10.21577/0100-4042.20170389 |
| URL الوصول: | https://doaj.org/article/2b8936440c3245f7930c5487dc291fb1 |
| رقم الأكسشن: | edsdoj.2b8936440c3245f7930c5487dc291fb1 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 16787064 01004042 |
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| DOI: | 10.21577/0100-4042.20170389 |