Data/hora: 20/06/2024 20:35:40

Biblioteca(s): | Embrapa Amazônia Ocidental.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 17/11/2010
Data da última atualização: | 10/04/2021
Autoria: | PINTO, A. C. da S.; CHAVES, F. C. M.; SANTOS, P. A. dos; NUNEZ, C. V.; TADEI, W. P.; POHLIT, A. M.
Afiliação: | FRANCISCO CELIO MAIA CHAVES, CPAA.
Título: | Piper peltatum: biomass and 4-nerolidylcatechol production.
Ano de publicação: | 2010
Fonte/Imprenta: | Planta Medica, New York, v. 76, n. 13, p. 1473-1475, 2010.
DOI: | http://dx.doi.org/10.1055/s-0029-1240938
Idioma: | Inglês
Conteúdo: | Piper peltatum L. is used for the treatment of inflammation, malaria, and other ailments. 4-Nerolidylcatechol (4-NC) is a valuable natural product that has important anti-inflammatory, antima-larial, and antioxidant properties. 4-NC is a component of P. peltatumand P. umbellatum extracts, which are used in cosmetics.The aim of this work was to evaluate the production of plant biomass and the production of 4-NC in roots of cultivated P. peltatumover a full life cycle. Seedlings were produced in a greenhouse and then transplanted. The weight of dry plant parts (leaves, stems, roots, and inflorescences); numbers of stems, leaves, and inflorescences; and the leaf-to-stem ratio were evaluated at intervals of 60 days after transplanting (DAT). Extracts were prepared using 1:1 ethanol-chloroform and an ultra sound bath. Roots, leaves, and inflorescences contained 4-NC according toTLC photo densitometry analysis. Quantification of 4-NC in root extracts was performed using HPLC?DAD analysis. Per-hectare production of 4-NC by roots was estimated based on quantitativ e HPLC analysis and biomass data. Optimal per-hectare yields of 4-NC were obtained by harvesting roots between 350 and 400 DAT. In this period, the average yield was 27 kg 4-NC per hectare. Importantly, at the time of maximal overall production of root biomass (470 DAT), there was a decrease in the production of 4-NC(23.8 kg/ha), probably due to the on set of senescence.
Thesagro: | Pimenta.
Categoria do assunto: | --
Registro original: | Embrapa Amazônia Ocidental (CPAA)
Exemplares: | CPAA - (23036-1) - UPC - AP - PP - S8729 -  - S8729 - DIS