Pterodon pubescens benth: stability study of microencapsulated extract and isolated compounds monitored by antinociceptive assays

Journal of the Brazilian Chemical Society

Leila Servat¹  Humberto M. Spindola¹  Rodney A. F. Rodrigues¹  Ilza M. O. Sousa¹  Ana L. T. G. Ruiz¹  João E. De Carvalho¹  Mary A. Foglio¹ 

[1] ,Universidade Estadual de Campinas Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas Campinas SP ,Brazil

关键词: microcapsules;    stability;    spray-drying;    antinociceptive;    Pterodon pubescens;   

DOI  :  10.1590/S0103-50532012000700008

来源: SciELO

【 摘 要 】

Pterodon pubescens Benth. (Pp) seeds, commercially available in Brazil, are used in folk medicine in anti-inflammatory, analgesic, and anti-rheumatic preparations. The present study demonstrated the antinociceptive properties of isomers 6α-hydroxy-7β-acetoxy-vouacapan-17β-oate methyl ester and 6α-acetoxy-7β-hydroxy-vouacapan-17β-oate methyl ester (C1), isolated from (Pp), employing different experimental models. A stability study was performed to investigate the relationship of microencapsulation by spray-drying on the maintenance of antinociceptive action. Therefore, C1 and Pp extract samples were monitored in accelerated stability study, evaluating both microencapsulated and non-microencapsulated samples. It was observed that sample C1 possess antinociceptive activity revealed by writhing and formalin tests; C1 showed significantly anti-allodynic, but not antihyperalgesic effect; the microencapsulation maintained the activity and integrity of both, sample C1 and Pp crude extract; microencapsulation by spray drying is a useful alternative to increase shelf life.

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