Chemical composition and antibacterial activity of Aloysia triphylla (L'Hérit) Britton extracts obtained by pressurized CO2 extraction

Brazilian Archives of Biology and Technology

Thaylise Vey Parodi¹  Agueda Palmira De Castagna Vargas¹  Carina Krewer¹  Érico Marlon De Moraes Flores¹  Bernardo Baldisserotto¹  Berta Maria Heinzmann²  José Vladimir De Oliveira¹  Ariana Secco Popiolski¹  Mariane Minozzo¹ 

[1] ,Universidade Federal de Santa Maria Departamento de Farmácia Industrial Santa Maria RS ,Brasil

关键词: Aloysia triphylla;    pressurized carbon dioxide extraction;    Aeromonas sp;   

DOI  :  10.1590/S1516-89132013000200014

来源: SciELO

【 摘 要 】

This study investigated the chemical composition of five different extracts of Aloysia triphylla and their activity against Aeromonas sp. The extracts were obtained from the dried leaves by pressurized CO2 extraction at 30, 50 and 70ºC, and 100, 150, and 200 bar, and analyzed by GC/FID and GC-MS. The antibacterial activity was assayed by the microdilution method. The tested microorganisms comprised seven Aeromonas isolates obtained from the kidney of infected silver catfish, Rhamdia quelen. The yield, chemical composition and antibacterial activity of the extracts were dependent on the extraction conditions. Mono and sesquiterpenoids were the major constituents of all the extracts and the highest extraction yield was obtained at 70ºC and 200 bar. A. triphylla presented moderate antibacterial activity against Aeromonas sp.

【 授权许可】

CC BY-NC   
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