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	Provedor de dados Acta Amazonica (1) BJM (1) Autor Bianchini Jr,Irineu (2) Cunha-Santino,Marcela B. da (1) Cunha-Santino,Marcela Bianchessi da (1) Nunes,Maíra F (1) Pacobahyba,Lucilia Dias (1) Palavra-chave Aerobic and anaerobic decomposition (1) Anaerobic decomposition (1) Aquatic macrophytes (1) Carbohydrates (1) Cellulase (1) Montrichardia arborescens (1) Polyphenols (1) Xylanase (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2011 (1) 2003 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Changes in the amount of soluble carbohydrates and polyphenols contents during decomposition of Montrichardia arborescens (L.) Schott Acta Amazonica Cunha-Santino,Marcela Bianchessi da; Pacobahyba,Lucilia Dias; Bianchini Jr,Irineu. This study describes the aerobic and anaerobic decay of soluble carbohydrates (CH) and polyphenols (PH) during decomposition of Montrichardia arborescens. Plant and water samples were collected in the Cantá stream (2º 49' 11" N and 60º 40' 24" W), Roraima, Brazil. Decomposition chambers with plant fragments and stream water were incubated. Particulate organic matter was separated from dissolved organic matter and concentrations of CH and PH were determined. The results were fitted to 1st order kinetics models. CH and PH comprised a labile fraction (LCH and LPH) and a refractory fraction (RCH and RPH). The global coefficient associated with LCH weight loss was 1.4 times higher under aerobic conditions (3.4 day-1) higher than for anaerobic conditions. On the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Carbohydrates; Polyphenols; Aerobic and anaerobic decomposition; Montrichardia arborescens. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672003000300011 Xylanase and cellulase activities during anaerobic decomposition of three aquatic acrophytes BJM Nunes,Maíra F; Cunha-Santino,Marcela B. da; Bianchini Jr,Irineu. Enzymatic activity during decomposition is extremely important to hydrolyze molecules that are assimilated by microorganisms. During aquatic macrophytes decomposition, enzymes act mainly in the breakdown of lignocellulolytic matrix fibers (i.e. cellulose, hemicellulose and lignin) that encompass the refractory fraction from organic matter. Considering the importance of enzymatic activities role in decomposition processes, this study aimed to describe the temporal changes of xylanase and cellulose activities during anaerobic decomposition of Ricciocarpus natans (freely-floating), Oxycaryum cubense (emergent) and Cabomba furcata (submersed). The aquatic macrophytes were collected in Óleo Lagoon, Luiz Antonio, São Paulo, Brazil and bioassays were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Anaerobic decomposition; Aquatic macrophytes; Xylanase; Cellulase. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100010 Registros recuperados: 2 Primeira ... 1 ... Última

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