RESUMEN
Neste trabalho, a espécie Piper hispidinervum (pimenta longa), endêmica do estado do Acre, foi cultivada na região do Vale do Itajaí - SC, e sua adaptação foi avaliada em relação à composição química do óleo essencial obtido pelos processos de hidrodestilação convencional e por micro-ondas. O safrol foi identificado como o constituinte majoritário do óleo essencial desta espécie, o qual foi empregado como parâmetro de avaliação da capacidade de adaptação desta planta à região sul do Brasil, já que a proposta abrange avaliar a utilização desta espécie como fonte alternativa de safrol, em substituição a Canela Sassafrás (Ocotea odorifera), espécie muito explorada até a década de 90 nesta região. As amostras da planta foram obtidas de diferentes regiões do Acre e foram cultivadas na estação experimental da EPAGRI - Itajaí-SC. O óleo essencial das folhas forneceu um teor médio de safrol entre 76,6% e 89,9%. A análise por CG-DIC e CG-EM do óleo com maior concentração de safrol, apresentou os seguintes constituintes: safrol (89,93%), α-terpineno (0,35%), (E)-ß-ocimeno (0,54%), terpinoleno (3,10%), valenceno (0,21%), (Z)-ß-bisaboleno (1,70%) e guaiol (0,29%).
In this work a Piper hispidinervum specie (long pepper), endemic from the Acre state, was grown in Itajaí Valley in Santa Catarina State, and its adaptation was evaluated in relation to chemical composition of essential oil obtained by traditional hydrodistillation and microwave hydrodistillation. The safrole was identified as the major constituent of the essential oil of this specie, which was used as a measure of evaluation of the adaptation capacity of this plant in the southern Brazil, as the proposal includes the evaluation of the usage of this specie as an alternative source of safrole, replacing Sassafras Cinnamon (Ocotea odorifera), widely explored specie in this region until the 90's decade. The plant samples were obtained from different regions of the Acre state and were cultivated at the experimental station of EPAGRI Itajaí - SC. The essential oil of the leaves provided an average content of safrole between 76.6% and 89.9%. The analysis by GC-FID and GC-MS of the oil with higher safrole content, presented the following relative constitution: safrole (89.93%), α-terpinene (0.35%), (E)-ß-ocimene (0.54%), terpinolene (3.10%), valencene (0.21%), (Z)-ß-bisabolene (1.70%) and guaiol (0.29%).
Asunto(s)
Safrol , Aceites Volátiles , Piper , MicroondasRESUMEN
Objective:To investigate the influence of piperlonguminine on blood-fat of animal and its acute toxicity. Methods:The hyperlipidemic model rats were established by feeding with the high-lipid diet for 14 days.Stomach-perfusion with piperlonguminine was accompanied at the same time.Effects of piperlonguminine on the hyperlipidemic rats were investigated by measurement of the contents of total cholesterol(TC),triglyceride(TG),low density lipoprotein cholesterol(LDL-c),high- density lipoprotein cholesterol(HDL-c).The hyperlipidemic model rabbits were established by feeding with hypercholesterol. The influences of piperlonguminine on serum lipid,liver lipid and atheroma were observed.The response of the acute toxicity of mice was also observed.Results:Piperlonguminine remarkably lowered the serum TC、TG、LDL-c,and increased the serum HDL-c of rats,lowered the serum TC、TG、LDL-c and liver TC、TG,and remarkably improved atheroma of rabbits.The acute toxicity was tested on mice.During the test there was no death.Even more it caused little pathological change.Conclusion: Piperlonguminine not only had significant antihyperlipidemia effects,but also improved atheroma effects.And the toxicity of piperlonguminine was very low.