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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
04/08/2016 |
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Data da última atualização: |
08/08/2016 |
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Autoria: |
PEREIRA, B. L. C.; CARNEIRO, A. DE C. O.; CARVALHO, A. M. M. L.; COLODETTE, J. L.; OLIVEIRA, A. C.; FONTES, M. P. F. |
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Título: |
Influence of chemical composition of Eucalyptus wood on gravimetric yield and charcoal properties. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
BioResources, Raleigh, v. 8, n. 3, p. 4574-4592, Aug. 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to assess the chemical properties of wood from six clones of Eucalyptus spp. relative to charcoal yield and its properties, determine the correlations between the evaluated parameters and identify a clone of Eucalyptus having the greatest potential for charcoal to steelmaking use. The study of chemical properties included analysis of elemental composition, contents of cellulose, hemicelluloses, lignin, and ash, the syringyl/guaiacyl ratio (S/G), and the index of crystalline cellulose in the wood. The pyrolysis of wood was done in an electric laboratory oven. The gravimetric yield in charcoal, the content of volatile matter, fixed carbon and ash, higher heating value, and elementary composition were determined. Data were subjected to an analysis of variance, and after the difference between them was established, the Tukey test was applied. The Pearson correlation was employed as well. The results indicated that the contents of carbon, oxygen, and hydrogen in the wood significantly affected the charcoal yields and its higher heating value. Higher rates of crystalline cellulose favored the gravimetric yield in charcoal. The S/G ratio contributed more to the charcoal yield when compared to total lignin content. |
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Palavras-Chave: |
Crystalline cellulose. |
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Thesagro: |
Carvão vegetal; Composição química; Eucalipto; Madeira. |
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Thesaurus Nal: |
Charcoal; Eucalyptus; Product quality. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02082naa a2200277 a 4500
001 2050251
005 2016-08-08
008 2013 bl uuuu u00u1 u #d
100 1 $aPEREIRA, B. L. C.
245 $aInfluence of chemical composition of Eucalyptus wood on gravimetric yield and charcoal properties.$h[electronic resource]
260 $c2013
520 $aThe objective of this study was to assess the chemical properties of wood from six clones of Eucalyptus spp. relative to charcoal yield and its properties, determine the correlations between the evaluated parameters and identify a clone of Eucalyptus having the greatest potential for charcoal to steelmaking use. The study of chemical properties included analysis of elemental composition, contents of cellulose, hemicelluloses, lignin, and ash, the syringyl/guaiacyl ratio (S/G), and the index of crystalline cellulose in the wood. The pyrolysis of wood was done in an electric laboratory oven. The gravimetric yield in charcoal, the content of volatile matter, fixed carbon and ash, higher heating value, and elementary composition were determined. Data were subjected to an analysis of variance, and after the difference between them was established, the Tukey test was applied. The Pearson correlation was employed as well. The results indicated that the contents of carbon, oxygen, and hydrogen in the wood significantly affected the charcoal yields and its higher heating value. Higher rates of crystalline cellulose favored the gravimetric yield in charcoal. The S/G ratio contributed more to the charcoal yield when compared to total lignin content.
650 $aCharcoal
650 $aEucalyptus
650 $aProduct quality
650 $aCarvão vegetal
650 $aComposição química
650 $aEucalipto
650 $aMadeira
653 $aCrystalline cellulose
700 1 $aCARNEIRO, A. DE C. O.
700 1 $aCARVALHO, A. M. M. L.
700 1 $aCOLODETTE, J. L.
700 1 $aOLIVEIRA, A. C.
700 1 $aFONTES, M. P. F.
773 $tBioResources, Raleigh$gv. 8, n. 3, p. 4574-4592, Aug. 2013.
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Registro original: |
Embrapa Florestas (CNPF) |
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Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
13/02/2012 |
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Data da última atualização: |
19/10/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
OLIVEIRA, A. T.; CRUZ, W. R.; PANTOJA- LIMA, J.; ARAÚJO, S. B.; ARAÚJO, M. L. G.; MARCON, J. L.; TAVARES-DIAS, M. |
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Afiliação: |
ADRIANO T. OLIVEIRA, Universidade Federal do Amazonas; WANESSA R. CRUZ, Universidade Federal do Amazonas; JACKSON PANTOJA-LIMA, Instituto Nacional de Pesquisas da Amazônia; SIHAME B. ARAÚJO, Universidade Federal do Amazonas; MARIA L. G. ARAÚJO, Universidade Federal do Amazonas; JAYDIONE L. MARCON, Universidade Federal do Amazonas; MARCOS TAVARES DIAS, CPAF-AP. |
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Título: |
Morphological and cytochemical characterization of thrombocytes and leukocytes in hatchlings of three species of Amazonian freshwater turtles. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Veterinarski Arhiv, v. 81, n. 5, p. 657-670, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this paper was to characterize the morphological and cytochemical aspects of thrombocytes and leukocytes in hatchlings of Podocnemis expansa, P. unifilis and P. sextuberculata from the lower Purus River, Amazonas State, Brazil. Blood smears were submitted to staining by Periodic Acid-Schiff (PAS), Peroxidase (PER), Toluidine Blue (TB), Sudan Black B (SBB) and Bromophenol Blue (BB). Only the lymphocytes did not present a positive-PAS reaction, while heterophils of P. unifilis showed a weak positive reaction. Azurophils, heterophils and eosinophils had a weak positive reaction for PER, with the exception of heterophils in P. expansa which stained intensely. Positive staining with BB was observed in granules of heterophils, eosinophils and basophils of P. expansa, P. unifilis and P. sextuberculata, but this was weak in basophils of P. sextuberculata. Sudanophilia was observed in heterophils granules and in eosinophils of P. expansa, P. unifilis and P. sextuberculata. Metachromasia was demonstrated in basophils of these three species. In these turtle hatchlings, heterophils and eosinophils are the most frequent leukocytes and both have a similar role in defense, since the granules of these granulocytes present glycogen, sudanophilia, peroxidase and basic proteins. |
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Palavras-Chave: |
Quelônio. |
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Thesagro: |
Célula Sangüínea; Hematologia; Reptil. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/54053/1/AP-2011-Morphological-cytochemical.pdf
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Marc: |
LEADER 02035naa a2200241 a 4500
001 1915332
005 2022-10-19
008 2011 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, A. T.
245 $aMorphological and cytochemical characterization of thrombocytes and leukocytes in hatchlings of three species of Amazonian freshwater turtles.$h[electronic resource]
260 $c2011
520 $aThe aim of this paper was to characterize the morphological and cytochemical aspects of thrombocytes and leukocytes in hatchlings of Podocnemis expansa, P. unifilis and P. sextuberculata from the lower Purus River, Amazonas State, Brazil. Blood smears were submitted to staining by Periodic Acid-Schiff (PAS), Peroxidase (PER), Toluidine Blue (TB), Sudan Black B (SBB) and Bromophenol Blue (BB). Only the lymphocytes did not present a positive-PAS reaction, while heterophils of P. unifilis showed a weak positive reaction. Azurophils, heterophils and eosinophils had a weak positive reaction for PER, with the exception of heterophils in P. expansa which stained intensely. Positive staining with BB was observed in granules of heterophils, eosinophils and basophils of P. expansa, P. unifilis and P. sextuberculata, but this was weak in basophils of P. sextuberculata. Sudanophilia was observed in heterophils granules and in eosinophils of P. expansa, P. unifilis and P. sextuberculata. Metachromasia was demonstrated in basophils of these three species. In these turtle hatchlings, heterophils and eosinophils are the most frequent leukocytes and both have a similar role in defense, since the granules of these granulocytes present glycogen, sudanophilia, peroxidase and basic proteins.
650 $aCélula Sangüínea
650 $aHematologia
650 $aReptil
653 $aQuelônio
700 1 $aCRUZ, W. R.
700 1 $aPANTOJA- LIMA, J.
700 1 $aARAÚJO, S. B.
700 1 $aARAÚJO, M. L. G.
700 1 $aMARCON, J. L.
700 1 $aTAVARES-DIAS, M.
773 $tVeterinarski Arhiv$gv. 81, n. 5, p. 657-670, 2011.
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Embrapa Amapá (CPAF-AP) |
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