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Essential oil composition of fruit colour varieties of Eugenia brasiliensis Lam.
Provedor de dados: Scientia Agricola
Autores: Moreno,Paulo Roberto H.; Lima,Marcos Enoque Leite; Sobral,Marcos; Young,Maria Cláudia Marx; Cordeiro,Inês; Apel,Miriam Anders; Limberger,Renata Pereira; Henriques,Amélia Teresinha.
Eugenia brasiliensis Lam. is a variable species concerning fruit colour, with three recognized varieties. However, the definition of varieties is not easy for Myrtaceae species and not widely accepted. Two fruit colour varieties (purple and yellow) of E. brasiliensis had their essential oil composition analysed in order to give support to the existence of varieties for this species. Although, the major components in the leaf oil are the same monoterpenes for both varieties, alpha-pinene, beta-pinene and 1,8-cineol, the purple fruit variety accumulates more oxygenated sesquiterpenes (33.9%) than the one with yellow fruits (3.8%). The major differences occurred in purple fruits that present as major components caryophyllene oxide (22.2%) and alpha-cadinol...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myrtaceae; Chemotypes; Terpenes; Pinenes; Caryophyllene oxide.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400014

Screening of Brazilian plants for antimicrobial and dnadamaging activities: I. Atlantic rain forest . Ecological station juréia-itatins
Provedor de dados: Biota Neotropica
Autores: Agripino,Débora Gomes; Lima,Marcos Enoque Leite; Silva,Marcelo Rogério da; Meda,Cristiane Infante; Bolzani,Vanderlan da Silva; Cordeiro,Inês; Young,Maria Claudia Marx; Moreno,Paulo Roberto H.
I. Atlantic Rain Forest . Ecological Station Juréia-Itatins) Crude extracts from 88 plant species occurring in São Paulo State (Brazil), collected in an Atlantic Forest region, have been screened for antimicrobial and DNA-damaging activities. Of the 114 extracts assayed for antibacterial activity, only the extracts from leaves and stems of Aspidosperma ramiflorum (Apocynaceae) showed a slight activity against Escherichia coli. In the antifungal assay with Candida albicans, no active extract was observed, while in the bioautography assay with Cladosporium sphaerospermum and C. cladosporioides 12% were active. However, only the extract of Psychotria mapoureoides (Rubiaceae) stems showed a strong inhibition of both fungi. The DNA-damaging assay with mutant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Rain forest; Antibacterial activity; Antifungal activity; Antitumoral activity; Plants screening.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032004000200009