Résumé
The seed oil of Annona salzmannii A. DC. was analyzed by GC-MS and 1H qNMR, revealing a mixture of unsaturated (80.5%) and saturated (18.7%) fatty acids. Linoleic (45.3%) and oleic (33.5%) acid were the major unsaturated fatty acids identified, while palmitic acid (14.3%) was the major saturated fatty acid. The larvicidal effects of A. salzmannii seed oil were evaluated against third-instar larvae of Aedes aegypti (Linn.). The oil exhibited moderate larvicidal activity, with a LC50 of 569.77 ppm (95% CI = 408.11 to 825.88 ppm). However, when the cytotoxic effects of the oil were evaluated, no expressive antiproliferative effects were observed in tumor cell lines B16-F10 (mouse melanoma), HepG2 (human hepatocellular carcinoma), K562 (human chronic myelocytic leukemia), HL-60 (human promyelocytic leukemia), and non-tumor cell line PBMC (peripheral blood mononuclear cells), with IC50 values > 50 µg·mL-1. This is the first study to evaluate the chemical composition, larvicidal and cytotoxic activity of A. salzmannii seed oil
Sujets)
Graines/anatomie et histologie , Huiles végétales/analyse , Annonaceae/composition chimique , Annona/effets indésirables , Leucémie myéloïde chronique BCR-ABL positive , Acides gras insaturés , Larve/classificationRésumé
Este trabalho é uma avaliaçäo qualitativa de produtos fitoterápicos e insumos vegetais comercializados em Porto Alegre no período de julho a outubro de 1997, com o objetivo de verificar as mudanças geradas na qualidade destes produtos após a vigência da Portaria n§ 6 da SVS-MS (DOU de 31/01/95). Foram analisados 42 produtos, adquiridos mediante compra em ervaterios, farmácias de manipulaçäo e drogarias de Porto Alegre. As técnicas utilizadas foram baseadas na Farmacopéia Brasileira 4ª ed. e em literatura especializada ou desenvolvidas na disciplina de Farmacognosia da Faculdade de Farmácia - UFRGS. Foram considerados como indicadores de qualidade: identidade, ausência de matérias orgânicas estranhas, estado de conservaçäo e presença dos principais constituintes químicos das amostras em análise. Os resultados obtidos demonstraram que a vigência da Portaria n§6 da SVS-MS (DOU 31/01/95) ainda näo induziu uma alteraçäo no quadro de qualidade dos produtos fitoterápicos comercializados em Porto Alegre, visto que das 42 amostras analisadas, 71,4(por cento) näo atendem aos quesitos mínimos de qualidade exigidos por esta norma, à semelhança de resultados obtidos em trabalhos anteriores. (AU)
This paper presents a qualitative evaluation of some herbal Medicines commerciali- zed in Porto Alegre - RS (Brazil) from july to october, 1997, in order to verify if the new Brazilian legislation about these products (Portaria 6 - SVS - MS - DOU 01.31.95) induced the improve- ment in their quality. Forty-two samples purchased from herbalists, drugstores and pharmacies Were analysed considering botanical identity, absence of foreign organic materiaIs, conservation state and presence of the main chemical compouds as quality indicators. The methods employed were based in the Farmacopéia Brasileira 4. ed and specialized literature The results showed that the Portaria 6 SVS - MS (DOU 01.31.95) validity has not yet influenced the quality State of herbal products com- mercialized in Porto Alegre, since 71,4 % of the analysed samples do not fit the minimum quality demands required by such legal rule, These results meet the ones observed in previous researchs in rela- tion to the unsatisfactory qualitity 'of the Brazilian herbal medicines. (AU)