Supercritical Fluid Extraction of Pyrrolidine Alkaloid from Leaves of Piper amalago L

Submitted by Sandra Infurna ([email protected]) on 2017-07-18T15:42:46Z No. of bitstreams: 1 VS_Faioes_etal_IOC_2017.pdf: 1501678 bytes, checksum: 8a7f7fc267f6d32e24876119691c8426 (MD5)Approved for entry into archive by Sandra Infurna ([email protected]) on 2017-07-18T15:54:38Z (GMT) No. of bitstreams: 1 VS_Faioes_etal_IOC_2017.pdf: 1501678 bytes, checksum: 8a7f7fc267f6d32e24876119691c8426 (MD5)Made available in DSpace on 2017-07-18T15:54:38Z (GMT). No. of bitstreams: 1 VS_Faioes_etal_IOC_2017.pdf: 1501678 bytes, checksum: 8a7f7fc267f6d32e24876119691c8426 (MD5) Previous issue date: 2017Universidade Estadual de Maringá. Departamento de Engenharia Química. Maringá, PR, Brasil.Universidade Estadual de Maringá. Departamento de Engenharia Química. Maringá, PR, Brasil.Universidade Estadual de Maringá. Departamento de Engenharia Química. Maringá, PR, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Tripanossomatídeos. Rio de Janeiro, RJ. Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Tripanossomatídeos. Rio de Janeiro, RJ. Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Tripanossomatídeos. Rio de Janeiro, RJ. Brasil.Universidade Estadual de Maringá. Departamento de Farmácia. Maringá, PR, Brasil.Supercritical fluid extraction was used to extract the alkaloid N-[7-(3',4'-methylenedioxyphenyl)-2(Z),4(Z)-heptadienoyl]pyrrolidine from leaves of Piper amalago L. A three-level orthogonal array design matrix, OAD OA9(3(4)), was used for optimization of the parameters of supercritical extraction of the alkaloid, employing supercritical carbon dioxide: extraction time (20, 40, and 60 min), temperature (40, 50, and 60°C), pressure (150, 200, and 250 bar), and the use of cosolvents (ethanol, methanol, and propyleneglycol). All parameters had significant effect on the alkaloid yield. The alkaloid yield after 60 min of extraction without cosolvents at 9 different conditions (3(2)) in terms of temperature (40, 50, and 60°C) and pressure (150, 200, and 250 bar) was also evaluated. The optimal yield (≈3.8 mg g(-1)) was obtained with supercritical CO2 + methanol (5% v : v) at 40°C and 200 bar for 60 min of extraction

Blood Profile and Histology in Oral Infections Associated with Diabetes

Introduction: We aimed to investigate the relationship between blood profile and histologic findings in both apical periodontitis (AP) and periodontal disease (PD) associated with diabetes. Methods: Wistar rats (N = 80) were assigned to the following 8 groups: control, AP, PD, AP associated with PD, diabetes, diabetes with AP, diabetes with PD, and diabetes with AP and PD. Diabetes mellitus (DM) was induced with streptozotocin, AP was induced by exposure to the oral environment, and PD was induced using periodontal ligature. After 30 days, blood samples were collected, and the rats were euthanized. Subsequently, the maxillae were processed for light microscopy. Hematologic examinations were conducted to determine the total number of erythrocytes and leukocytes, erythrocyte constant, and blood glucose level. One-way analysis of variance and Kruskal-Wallis tests were used for statistical analysis, and the significance was set at P < .05. Results: A significant correlation was found between the histologic findings and blood parameters. Conclusions: In conclusion, diabetes accelerated the development and progression of AP and PD in the rats and caused an increase in the average erythrocyte volume as well as the leukocyte and neutrophil counts. Oral infections increase the total number of leukocytes, the number of neutrophils and lymphocytes, and blood glucose concentrations in DM rats.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP

Óleo de copaíba (Copaifera sp.): histórico, extração, aplicações industriais e propriedades medicinais Copaiba oil (Copaifera sp.): history, extraction, industrial applications and medicinal properties

Este trabalho teve como objetivo realizar uma revisão de literatura sobre o gênero Copaifera sp. Foi realizado levantamento bibliográfico do período de 1792 a 2008 utilizando bibliotecas da Universidade de São Paulo, Universidade Federal de Viçosa, Universidade Federal de Alfenas e Universidade José do Rosário Vellano, pesquisas às bases de dados SCOPUS e PubMed, além de ferramentas de busca na web. Utilizou-se para a busca palavras chave como "Copaiba", "Copaifera", "Copaíba oil" "Óleo de Copaíba". Como resultado desta pesquisa obteve-se a seleção de 63 referências incluindo livros, artigos, cadernos técnicos, resumos de congressos, teses, dissertações e patentes. Estes dados apontaram o óleo de copaíba como um exsudato produzido pelas copaibeiras como defesa contra seus predadores, que vem sendo utilizado pela medicina tradicional popular e silvícola há mais de 500 anos. Ele é extraído destas árvores através de perfurações realizadas em seus troncos. Além das inúmeras aplicações do óleo em cosméticos e outras indústrias, ainda há uma série de indicações para seu uso na medicina. Existem hoje descritas algumas dezenas de propriedades medicinais diferentes, que vem sendo em alguns casos comprovadas cientificamente, como atividade antimicrobiana, antiinflamatória, anti-neoplásica entre outras. Estudos recentes têm demonstrado também grande potencial de uso do óleo de copaíba na odontologia, na composição de cimentos endodônticos e na prevenção e combate da doença periodontal. As informações contidas neste trabalho demonstram uma grande variabilidade de aplicações do óleo de copaíba. Entretanto uma quantidade limitada de pesquisas sobre suas propriedades medicinais tem sido realizada, apresentando assim a necessidade de novas pesquisas sobre estas.<br>The aim of this study was to conduct a literature review concerning the genus Copaifera sp. The survey involved the period from 1792 to 2008 and was done in the libraries of University of São Paulo, Federal University of Viçosa, Federal University of Alfenas and University Jose do Rosario Vellano, using SCOPUS and PubMed databases, and web search engines. The words "Copaiba", "Copaifera," "Óleo de copaiba" and "Copaiba oil" were used. This research resulted in the selection of 63 references including books, articles, technical specifications, conference abstracts, theses, dissertations and patents. These data indicate copaiba oil is an exudate from copaiba trees, produced as a defense against their predators and that has been used in traditional, popular and forestry medicine for over 500 years. It is extracted from trees through holes made in their trunks. Besides the oil applications in cosmetic and other industries, there are still a number of indications for its use in medicine. So far, dozens of different medicinal properties have been described and, in some cases, scientifically proven, including antimicrobial, anti-inflammatory, and anti-cancer activity. Recent studies have also shown great potential for the use of copaiba oil in dentistry like in endodontic cement composition, as well as in the prevention and therapy of periodontal diseases. This work showed a great variety of applications to copaiba oil. However, few studies on its medicinal properties have been performed, showing thus the need for further research

ESICM LIVES 2016: part two : Milan, Italy. 1-5 October 2016.

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