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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
02/09/2013 |
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Data da última atualização: |
02/09/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, A. L. R.; PAGANI, M. M.; DORNIER, M.; GOMES, F. S.; TONON, R. V.; CABRAL, L. M. C. |
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Afiliação: |
ANDRÉ L. R. SOUZA, UFRRJ; MONICA M. PAGANI, UFRRJ; MANUEL DORNIER, CIRAD; FLAVIA DOS SANTOS GOMES, CTAA; RENATA VALERIANO TONON, CTAA; LOURDES MARIA CORREA CABRAL, CTAA. |
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Título: |
Concentration of camu-camu juice by the coupling of reverse osmosis and osmotic evaporation processes. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Journal of Food Engineering, v. 119, n. 1, p. 7-12, Nov. 2013. |
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DOI: |
10.1016/j.jfoodeng.2013.05.004 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to evaluate the technical feasibility of coupling two membrane separation processes, reverse osmosis (RO) and osmotic evaporation (OE), in order to concentrate clarified camu?camu juice, focusing on the vitamin C, phenolic compounds and antioxidant activity of the final product. The juice was firstly pre-concentrated by RO, reaching 285 g kg−1 of soluble solids. During this step, the juice?s osmotic pressure showed to be the main factor controlling mass transfer. The juice was then concentrated by OE, reaching 530 g kg−1 of soluble solids. Vitamin C, total phenolics and antioxidant activity levels of 94.6 g ascorbic acid kg−1, 105.2 g galic acid kg−1 and 762 mmol Trolox kg−1, respectively, were achieved in the final product. The use of integrated membrane processes proved to be an interesting alternative to the concentration of thermosensitive juices, reaching concentration levels up to 7 times for camu?camu juice?s bioactive compounds. |
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Palavras-Chave: |
Fluxo permeado; Frutas tropicais; Pressão osmótica; Qualidade do suco; Tecnologia de membrana. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01774naa a2200253 a 4500
001 1965347
005 2013-09-02
008 2013 bl uuuu u00u1 u #d
024 7 $a10.1016/j.jfoodeng.2013.05.004$2DOI
100 1 $aSOUZA, A. L. R.
245 $aConcentration of camu-camu juice by the coupling of reverse osmosis and osmotic evaporation processes.
260 $c2013
520 $aThe objective of this work was to evaluate the technical feasibility of coupling two membrane separation processes, reverse osmosis (RO) and osmotic evaporation (OE), in order to concentrate clarified camu?camu juice, focusing on the vitamin C, phenolic compounds and antioxidant activity of the final product. The juice was firstly pre-concentrated by RO, reaching 285 g kg−1 of soluble solids. During this step, the juice?s osmotic pressure showed to be the main factor controlling mass transfer. The juice was then concentrated by OE, reaching 530 g kg−1 of soluble solids. Vitamin C, total phenolics and antioxidant activity levels of 94.6 g ascorbic acid kg−1, 105.2 g galic acid kg−1 and 762 mmol Trolox kg−1, respectively, were achieved in the final product. The use of integrated membrane processes proved to be an interesting alternative to the concentration of thermosensitive juices, reaching concentration levels up to 7 times for camu?camu juice?s bioactive compounds.
653 $aFluxo permeado
653 $aFrutas tropicais
653 $aPressão osmótica
653 $aQualidade do suco
653 $aTecnologia de membrana
700 1 $aPAGANI, M. M.
700 1 $aDORNIER, M.
700 1 $aGOMES, F. S.
700 1 $aTONON, R. V.
700 1 $aCABRAL, L. M. C.
773 $tJournal of Food Engineering$gv. 119, n. 1, p. 7-12, Nov. 2013.
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Embrapa Agroindústria de Alimentos (CTAA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Roraima; Embrapa Solos. |
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Data corrente: |
14/10/2015 |
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Data da última atualização: |
16/04/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
POORTER, L.; SANDE, M. T. van der; THOMPSON, J.; ARETS, E. J. M. M.; ALARCÓN, A.; ÁLVAREZ-SÁNCHEZ, J.; ASCARRUNZ, N.; BALVANERA, P.; BARAJAS-GUZMÁN, G.; BOIT, A.; BONGERS, F.; CARVALHO, F. A.; CASANOVES, F.; CORNEJO-TENORIO, G.; COSTA, F. R. C.; CASTILHO, C. V. de; DUIVENVOORDEN, J. F.; DUTRIEUX, L. P.; ENQUIST, J. P.; FERNÁNDEZ-MÉNDEZ, F.; FINEGAN, B.; GORMLEY, L. H. L.; HEALEY, J. R.; HOOSBEEK, M. R.; IBARRA-MANRÍQUEZ, G.; JUNQUEIRA, A. B.; LEVIS, C.; LICONA, J. C.; LISBOA, L. S.; MAGNUSSON, W. E.; MARTÍNEZ-RAMOS, M.; MARTÍNEZ-YRIZAR, A.; MARTORANO, L. G.; MASKELL, L. C.; MAZZEI, L.; MEAVE, J. A.; MORA, F.; MUÑOZ, R.; NYTCH, C.; PANSONATO, M. P.; PARR, T. W.; PAZ, H.; PÉREZ-GARCIA, E. A.; RENTERÍA, L. Y.; RODRÍGUEZ-VELÁZQUEZ, J.; ROZENDAAL, D. M. A.; RUSCHEL, A. R.; SAKSCHEWSKI, B.; SALGADO-NEGRET, B.; SCHIETT, J.; SIMÕES, M.; SINCLAIR, F. L.; SOUZA, P. F.; SOUZA, F. C.; STROPP, J.; STEEGE, H. ter; SWENSON, N. G.; THONICKE, K.; TOLEDO, M.; URIARTE, M.; HOUT, P. van der; WALKER, P.; ZAMORA, N.; PEÑA-CLAROS, M. |
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Afiliação: |
L. POORTER, WAGENINGEN UNIVERSITY; M. T. van der SANDE, WAGENINGEN UNIVERSITY; J. THOMPSON, CENTRE FOR ECOLOGIE & HIDROLOGIE, PENICUIK; E. J. M. M. ARETS; A. ALARCÓN; J. ÁLVAREZ-SÁNCHEZ; N. ASCARRUNZ; P. BALVANERA; G. BARAJAS-GUZMÁN; A. BOIT; F. BONGERS; F. A. CARVALHO, INPA; F. CASANOVES; G. CORNEJO-TENORIO; F. R. C. COSTA, INPA; CAROLINA VOLKMER DE CASTILHO, CPAF-RR; J. F. DUIVENVORDEN; L. P. DUTRIEUX; J. P. ENQUIST; F. FERNÁNDEZ-MÉNDEZ; B. FINEGAN; L. H. L. GORMLEY; J. R. HEALEY; M. R. HOOSBEEK; G. IBARRA-MANRÍQUEZ; A. B. JUNQUEIRA, INPA; C. LEVIS; J. C. LICONA; L. S. LISBOA, ESALQ/USP; W. E. MAGNUSSON; M. MARTÍNEZ-RAMOS; A. MARTÍNEZ-YRIZAR; LUCIETA GUERREIRO MARTORANO, CPATU; L. C. MASKELL; LUCAS JOSE MAZZEI DE FREITAS, CPATU; J. A. MEAVE; F. MORA; R. MUÑOZ; C. NYTCH; M. P. PANSONATO, INPA; T. W. PARR; H. PAZ; E. A. PÉREZ-GARCIA; L. Y. RENTERÍA; J. RODRÍGUEZ-VELÁZQUEZ; D. M. A. ROZENDAAL; ADEMIR ROBERTO RUSCHEL, CPATU; B. SAKSCHEWSKI; B. SALGADO-NEGRET; J. SCHIETT, INPA; MARGARETH SIMOES, CNPS; F. L. SINCLAIR; P. F. SOUZA, INPA; F. C. SOUZA, INPA; J. STROPP, UFAL; H. ter STEEGE; N. G. SWENSON; K. THONICKE; M. TOLEDO; M. URIARTE; P. van der HOUT; P. WALKER; N. ZAMORA; M. PEÑA-CLAROS. |
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Título: |
Diversity enhances carbon storage in tropical forests. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Global Ecology and Biogeography, v. 24, n. 11, p. 1314-1328, Nov. 2015. |
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DOI: |
10.1111/geb.12364 |
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Idioma: |
Inglês |
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Conteúdo: |
Tropical forests store 25% of global carbon and harbour 96% of the world?s tree species, but it is not clear whether this high biodiversity matters for carbon storage. Few studies have teased apart the relative importance of forest attributes and environmental drivers for ecosystem functioning, and no such study exists for the tropics. We relate aboveground biomass (AGB) to forest attributes (diversity and structure) and environmental drivers (annual rainfall and soil fertility) using data from 144,000 trees, 2050 forest plots and 59 forest sites. The sites span the complete latitudinal and climatic gradients in the lowland Neotropics, with rainfall ranging from 750 to 4350 mm year-1. Relationships were analysed within forest sites at scales of 0.1 and 1 ha and across forest sites along large-scale environmental gradients. We used a structural equation model to test the hypothesis that species richness, forest structural attributes and environmental drivers have independent, positive effects on AGB. Across sites, AGB was most strongly driven by rainfall, followed by average tree stem diameter and rarefied species richness, which all had positive effects on AGB. Our indicator of soil fertility (cation exchange capacity) had a negligible effect on AGB, perhaps because we used a global soil database. Taxonomic forest attributes (i.e. species richness, rarefied richness and Shannon diversity) had the strongest relationships with AGB at small spatial scales, where an additional species can still make a difference in terms of niche complementarity, while structural forest attributes (i.e. tree density and tree size) had strong relationships with AGB at all spatial scales. Biodiversity has an independent, positive effect on AGB and ecosystem functioning, not only in relatively simple temperate systems but also in structurally complex hyperdiverse tropical forests. Biodiversity conservation should therefore be a key component of the UN Reducing Emissions from Deforestation and Degradation strategy. MenosTropical forests store 25% of global carbon and harbour 96% of the world?s tree species, but it is not clear whether this high biodiversity matters for carbon storage. Few studies have teased apart the relative importance of forest attributes and environmental drivers for ecosystem functioning, and no such study exists for the tropics. We relate aboveground biomass (AGB) to forest attributes (diversity and structure) and environmental drivers (annual rainfall and soil fertility) using data from 144,000 trees, 2050 forest plots and 59 forest sites. The sites span the complete latitudinal and climatic gradients in the lowland Neotropics, with rainfall ranging from 750 to 4350 mm year-1. Relationships were analysed within forest sites at scales of 0.1 and 1 ha and across forest sites along large-scale environmental gradients. We used a structural equation model to test the hypothesis that species richness, forest structural attributes and environmental drivers have independent, positive effects on AGB. Across sites, AGB was most strongly driven by rainfall, followed by average tree stem diameter and rarefied species richness, which all had positive effects on AGB. Our indicator of soil fertility (cation exchange capacity) had a negligible effect on AGB, perhaps because we used a global soil database. Taxonomic forest attributes (i.e. species richness, rarefied richness and Shannon diversity) had the strongest relationships with AGB at small spatial scales, where an additional s... Mostrar Tudo |
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Palavras-Chave: |
Escala; Funcionamento dos ecossistemas; Neotropical; Precipitação; REDD+. |
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Thesagro: |
Biodiversidade; Biomassa; Floresta tropical; Solo. |
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Thesaurus NAL: |
Biodiversity; Biomass; Soil; Tropical forests. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 04779naa a2201045 a 4500
001 2026769
005 2018-04-16
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1111/geb.12364$2DOI
100 1 $aPOORTER, L.
245 $aDiversity enhances carbon storage in tropical forests.$h[electronic resource]
260 $c2015
520 $aTropical forests store 25% of global carbon and harbour 96% of the world?s tree species, but it is not clear whether this high biodiversity matters for carbon storage. Few studies have teased apart the relative importance of forest attributes and environmental drivers for ecosystem functioning, and no such study exists for the tropics. We relate aboveground biomass (AGB) to forest attributes (diversity and structure) and environmental drivers (annual rainfall and soil fertility) using data from 144,000 trees, 2050 forest plots and 59 forest sites. The sites span the complete latitudinal and climatic gradients in the lowland Neotropics, with rainfall ranging from 750 to 4350 mm year-1. Relationships were analysed within forest sites at scales of 0.1 and 1 ha and across forest sites along large-scale environmental gradients. We used a structural equation model to test the hypothesis that species richness, forest structural attributes and environmental drivers have independent, positive effects on AGB. Across sites, AGB was most strongly driven by rainfall, followed by average tree stem diameter and rarefied species richness, which all had positive effects on AGB. Our indicator of soil fertility (cation exchange capacity) had a negligible effect on AGB, perhaps because we used a global soil database. Taxonomic forest attributes (i.e. species richness, rarefied richness and Shannon diversity) had the strongest relationships with AGB at small spatial scales, where an additional species can still make a difference in terms of niche complementarity, while structural forest attributes (i.e. tree density and tree size) had strong relationships with AGB at all spatial scales. Biodiversity has an independent, positive effect on AGB and ecosystem functioning, not only in relatively simple temperate systems but also in structurally complex hyperdiverse tropical forests. Biodiversity conservation should therefore be a key component of the UN Reducing Emissions from Deforestation and Degradation strategy.
650 $aBiodiversity
650 $aBiomass
650 $aSoil
650 $aTropical forests
650 $aBiodiversidade
650 $aBiomassa
650 $aFloresta tropical
650 $aSolo
653 $aEscala
653 $aFuncionamento dos ecossistemas
653 $aNeotropical
653 $aPrecipitação
653 $aREDD+
700 1 $aSANDE, M. T. van der
700 1 $aTHOMPSON, J.
700 1 $aARETS, E. J. M. M.
700 1 $aALARCÓN, A.
700 1 $aÁLVAREZ-SÁNCHEZ, J.
700 1 $aASCARRUNZ, N.
700 1 $aBALVANERA, P.
700 1 $aBARAJAS-GUZMÁN, G.
700 1 $aBOIT, A.
700 1 $aBONGERS, F.
700 1 $aCARVALHO, F. A.
700 1 $aCASANOVES, F.
700 1 $aCORNEJO-TENORIO, G.
700 1 $aCOSTA, F. R. C.
700 1 $aCASTILHO, C. V. de
700 1 $aDUIVENVOORDEN, J. F.
700 1 $aDUTRIEUX, L. P.
700 1 $aENQUIST, J. P.
700 1 $aFERNÁNDEZ-MÉNDEZ, F.
700 1 $aFINEGAN, B.
700 1 $aGORMLEY, L. H. L.
700 1 $aHEALEY, J. R.
700 1 $aHOOSBEEK, M. R.
700 1 $aIBARRA-MANRÍQUEZ, G.
700 1 $aJUNQUEIRA, A. B.
700 1 $aLEVIS, C.
700 1 $aLICONA, J. C.
700 1 $aLISBOA, L. S.
700 1 $aMAGNUSSON, W. E.
700 1 $aMARTÍNEZ-RAMOS, M.
700 1 $aMARTÍNEZ-YRIZAR, A.
700 1 $aMARTORANO, L. G.
700 1 $aMASKELL, L. C.
700 1 $aMAZZEI, L.
700 1 $aMEAVE, J. A.
700 1 $aMORA, F.
700 1 $aMUÑOZ, R.
700 1 $aNYTCH, C.
700 1 $aPANSONATO, M. P.
700 1 $aPARR, T. W.
700 1 $aPAZ, H.
700 1 $aPÉREZ-GARCIA, E. A.
700 1 $aRENTERÍA, L. Y.
700 1 $aRODRÍGUEZ-VELÁZQUEZ, J.
700 1 $aROZENDAAL, D. M. A.
700 1 $aRUSCHEL, A. R.
700 1 $aSAKSCHEWSKI, B.
700 1 $aSALGADO-NEGRET, B.
700 1 $aSCHIETT, J.
700 1 $aSIMÕES, M.
700 1 $aSINCLAIR, F. L.
700 1 $aSOUZA, P. F.
700 1 $aSOUZA, F. C.
700 1 $aSTROPP, J.
700 1 $aSTEEGE, H. ter
700 1 $aSWENSON, N. G.
700 1 $aTHONICKE, K.
700 1 $aTOLEDO, M.
700 1 $aURIARTE, M.
700 1 $aHOUT, P. van der
700 1 $aWALKER, P.
700 1 $aZAMORA, N.
700 1 $aPEÑA-CLAROS, M.
773 $tGlobal Ecology and Biogeography$gv. 24, n. 11, p. 1314-1328, Nov. 2015.
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Embrapa Roraima (CPAF-RR) |
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