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



Document title: Chemical composition and antibacterial activity of Aloysia triphylla (L'Hérit) Britton extracts obtained by pressurized CO2 extraction
Journal: Brazilian archives of biology and technology
Database: PERIÓDICA
System number: 000365572
ISSN: 1516-8913
Authors: 1
2
2
3
1
4
5
5
5
Institutions: 1Universidade Federal de Santa Maria, Departamento de Fisiologia e Farmacologia , Santa Maria, Rio Grande do Sul. Brasil
2Universidade Federal de Santa Maria, Departamento Medicina Veterinaria Preventiva, Santa Maria, Rio Grande do Sul. Brasil
3Universidade Federal de Santa Maria, Departamento de Quimica, Santa Maria, Rio Grande do Sul. Brasil
4Universidade Federal de Santa Maria, Departamento de Farmacia Industrial, Santa Maria, Rio Grande do Sul. Brasil
5Universidade Regional Integrada do Alto Uruguai e das Missoes, Departamento de Engenharia de Alimentos, Erechim, Rio Grande do Sul. Brasil
Year:
Season: Mar-Abr
Volumen: 56
Number: 2
Pages: 283-292
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract 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
Disciplines: Biología,
Química,
Medicina
Keyword: Angiospermas,
Fitoquímica,
Farmacología,
Extractos vegetales,
Actividad antibacteriana,
Plantas medicinales,
Aloysia triphylla,
Verbenaceae,
Aeromonas
Keyword: Biology,
Chemistry,
Medicine,
Angiosperms,
Phytochemistry,
Pharmacology,
Plant extracts,
Antibacterial activity,
Medicinal plants,
Aloysia triphylla,
Verbenaceae,
Aeromonas
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