Data/hora: 04/06/2024 07:53:27

Biblioteca(s): 	Embrapa Hortaliças; Embrapa Uva e Vinho.	
Data corrente: 	03/02/2017	
Data da última atualização: 	03/02/2017	
Autoria: 	PERIGO, C. V.; TORRES, R. B.; BERNACCI, L. C.; GUIMARÃES, E. F.; HABER, L. L.; FACANALI, R.; QUECINI, V.; MARQUES, M. O. M.	
Afiliação: 	CRISLENE VAZ PERIGO, Instituto Agronômico de Campinas.; ROSELI B. TORRES, Instituto Agronômico de Campinas.; LUIS C. BERNACCI, Instituto Agronômico de Campinas.; ELSIE F. GUIMARÃES, Instituto de Pesquisas Jardim Botânico do Rio de Janeiro.; LENITA LIMA HABER, CNPH; ROSELAINE FACANALI, Instituto Agronômico de Campinas.; VERA MARIA QUECINI, CNPUV; MARCIA ORTIZ M. MARQUES, Instituto Agronômico Campinas.	
Título: 	The chemical composition and antibacterial activity of eleven Piper species from distinct rainforest areas in Southeastern Brazil.	
Ano de publicação: 	2016	
Fonte/Imprenta: 	Industrial Crops and Products, v. 94, p. 528-539, 2016.	
DOI: 	10.1016/j.insoeop.2016.09.028	
Idioma: 	Inglês	
Conteúdo: 	Piper is a large and highly diverse genus of plants with medicinal and aromatic use. Itis widely distributed in tropical forests occupying distinct environments. We have determined the chemical composition ofthe essential oils from 11 species of Piper from seven locations of Atlantic rainforestin Brazil. The essential oils were isolated by hydrodistillation and their composition, determined by GC?MS. The chemical composition of the oils exhibits qualitative and quantitative differences among the species and intraspecifically for distinct locations. Mono and sesquiterpenes were the most abundant compounds, although P. aduncum also contained phenylpropanoids. The oils of P. xylosteoides, P. umbellatum and P. leptorum from coastal and inland regions consisted exclusively of oxygenated sesquiterpenes. In contrast, monoterpene was the sole chemical class in the oils extracted from P. rivinoides and P. solmsianum. Hierarchical clustering analyses demonstrated the chemical phenotype is associated to species-specific and environmental factors. The essential oils from the majority of the investigated Piper species exhibit inhibitory activity against pathogenic bacteria in vitro, reaching up to 30% of the inhibition levels of commercial antibiotics. The contents of bicyclogermacre and -muurolene were positively associated to E. coli inhibition, whereas, levels of germacrene D and trans-caryophyllene were associated to the inhibitory activity against all tested bacteria. Limonene and cis--ocymene were associated with Staphylococci inhibition. Higher contents of -phellandrene were positively correlated to wide spectrum antibacterial activity. Taken together, our results demonstrate the chemical diversity of Piper essential oils and their potential as novel antibacterial agents for several industrial applications.	
Thesagro: 	Piperaceae; Planta aromática.	
Thesaurus Nal: 	Essential oils; Piper.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Hortaliças (CNPH)	
Exemplares: 	CNPH - (40364-1) - UPC - AP - DD -  -  -  - DIS
CNPUV - (17137-1) - UPC - AP - DD -  -  -  - DIS