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|metadata.artigo.dc.title:||Extracts from the leaves of Piper piscatorum (Trel. Yunc.) obtained by supercritical extraction of with CO 2 , employing ethanol and methanol as co-solvents|
|metadata.artigo.dc.creator:||Pimentel, Flávio A.|
Cardoso, Maria das G.
Guimarães, Luiz G.L.
Barbosa, Luiz C.A.
Morais, Augusto R.
Nelson, David L.
Andrade, Milene A.
Zacaroni, Lidiany M.
Pimentel, Sônia Maria N.P.
|metadata.artigo.dc.identifier.citation:||PIMENTEL, F. A. et al. Extracts from the leaves of Piper piscatorum (Trel. Yunc.) obtained by supercritical extraction of with CO2, employing ethanol and methanol as co-solvents. Industrial Crops and Products, [S.l.], v. 43, p. 490-495, Jul. 2013.|
|metadata.artigo.dc.description.abstract:||The efficiency of the extraction of fresh and dried leaves of Piper piscatorum was evaluated employing supercritical CO 2 and co-solvents (10% ethanol and 10% methanol) at 40 ◦ C and 70 ◦ C and a pressure of 400 bar. The extracts were characterized chemically by GC–MS and GC–FID. The major components of the extracts were piperovatine, followed by palmitic acid, pentadecane and pipercallosidine. Dry- ing of the leaves caused modifications in their composition, mainly reducing the concentration of the amides, which have activity as anesthetics. The highest yields of the piperovatine (0.93%, w/w) and pipercallosidine (0.24%, w/w) were obtained from the fresh leaves extracted with CO 2 modified with 10% ethanol at 40 ◦ C.|
|Appears in Collections:||DCA - Artigos publicados em periódicos|
DQI - Artigos publicados em periódicos
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