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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos; Embrapa Pecuária Sudeste. |
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Data corrente: |
19/10/2011 |
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Data da última atualização: |
26/07/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DINIZ, G. S.; BARBARINO, E.; OIANO NETO, J.; PACHECO, S.; LOURENÇO, S. O. |
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Afiliação: |
GRACIELA S. DINIZ, DEPTO. BIOLOGIA MARINHA, UFF, RJ.; ELISABETE BARBARINO, DETO. BIOLOGIA MARINHA, UFF, RJ.; JOAO OIANO NETO, CPPSE; SIDNEY PACHECO, CTAA; SERGIO O. LOURENÇO, DEPTO. BIOLOGIA MARINHA, UFF, RJ. |
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Título: |
Gross chemical profile and calculation of nitrogen-to-protein conversion factors for five tropical seaweeds. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
American Journal of Plant Sciences, v. 2, n. 3, sep., 2011. |
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Páginas: |
p. 287-296 |
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DOI: |
10.4236/ajps.2011.23032 |
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Idioma: |
Inglês |
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Conteúdo: |
Despite decades of research on marine algae, there are still significant gaps in basic knowledge about chemical com-position of these organisms, especially in tropical environments. In this study, the amino acid composition and contents of total nitrogen, phosphorus, lipid, carbohydrate and protein were determined in Asparagopsis taxiformis, Centroceras clavulatum, Chaetomorpha aerea, Sargassum filipendula and Spyridia hypnoides. The seaweeds showed low lipid con-tents (lower than 5.5% d.w. in all species) and were rich in carbohydrates (more than 16% d.w. in all seaweeds). The percentage of nitrogen, phosphorus and protein varied widely among species, which red algae showed the highest con-centrations. The amino acid composition was similar among the seaweeds, which glutamic acid, aspartic acid and leu-cine as the most abundant. All species are poor in histidine. An average of 24.2% of the total nitrogen is non-proteinaceous. From data of total amino acid and total nitrogen, specific nitrogen-to-protein conversion factors were calculated for each species. The nitrogen-to-protein conversion factors calculated ranged from 4.51 to 5.21, with an overall average of 4.86. These findings show that the traditional conversion factor of 6.25 should be avoided for seaweeds, since it overestimates the actual protein content. |
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Palavras-Chave: |
Amino Acid; Element Composition; Nitrogen to Protein Conversion Factors; Protein; Seaweeds; Tropical Environment. |
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Thesagro: |
Alga marinha; Aminoácido; Proteína. |
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Thesaurus Nal: |
Amino acids; Macroalgae; Proteins. |
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Categoria do assunto: |
W Química e Física
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/43841/1/PROCIJON2011.00116.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/47169/1/2011-058.pdf
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Marc: |
LEADER 02286naa a2200337 a 4500
001 1903473
005 2022-07-26
008 2011 bl uuuu u00u1 u #d
024 7 $a10.4236/ajps.2011.23032$2DOI
100 1 $aDINIZ, G. S.
245 $aGross chemical profile and calculation of nitrogen-to-protein conversion factors for five tropical seaweeds.
260 $c2011
300 $ap. 287-296
520 $aDespite decades of research on marine algae, there are still significant gaps in basic knowledge about chemical com-position of these organisms, especially in tropical environments. In this study, the amino acid composition and contents of total nitrogen, phosphorus, lipid, carbohydrate and protein were determined in Asparagopsis taxiformis, Centroceras clavulatum, Chaetomorpha aerea, Sargassum filipendula and Spyridia hypnoides. The seaweeds showed low lipid con-tents (lower than 5.5% d.w. in all species) and were rich in carbohydrates (more than 16% d.w. in all seaweeds). The percentage of nitrogen, phosphorus and protein varied widely among species, which red algae showed the highest con-centrations. The amino acid composition was similar among the seaweeds, which glutamic acid, aspartic acid and leu-cine as the most abundant. All species are poor in histidine. An average of 24.2% of the total nitrogen is non-proteinaceous. From data of total amino acid and total nitrogen, specific nitrogen-to-protein conversion factors were calculated for each species. The nitrogen-to-protein conversion factors calculated ranged from 4.51 to 5.21, with an overall average of 4.86. These findings show that the traditional conversion factor of 6.25 should be avoided for seaweeds, since it overestimates the actual protein content.
650 $aAmino acids
650 $aMacroalgae
650 $aProteins
650 $aAlga marinha
650 $aAminoácido
650 $aProteína
653 $aAmino Acid
653 $aElement Composition
653 $aNitrogen to Protein Conversion Factors
653 $aProtein
653 $aSeaweeds
653 $aTropical Environment
700 1 $aBARBARINO, E.
700 1 $aOIANO NETO, J.
700 1 $aPACHECO, S.
700 1 $aLOURENÇO, S. O.
773 $tAmerican Journal of Plant Sciences$gv. 2, n. 3, sep., 2011.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
28/11/2008 |
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Data da última atualização: |
29/11/2008 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
PASCOA, L.; MAGNABOSCO, C. de U.; TROVO, J. B. de F. |
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Afiliação: |
Lilian Pascoa, Escola Técnica Federal de Brasília; Cláudio de Ulhoa Magnabosco, CPAC; José Benedito de Freitas Trovo, Cenargen. |
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Título: |
Ganho genético para peso aos 210 dias em diferentes rebanhos de bovinos de cria. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM. |
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Idioma: |
Português |
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Thesagro: |
Bovino; Ganho de Peso; Melhoramento Genético Animal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00712naa a2200169 a 4500
001 1571004
005 2008-11-29
008 2008 bl uuuu u00u1 u #d
100 1 $aPASCOA, L.
245 $aGanho genético para peso aos 210 dias em diferentes rebanhos de bovinos de cria.
260 $c2008
650 $aBovino
650 $aGanho de Peso
650 $aMelhoramento Genético Animal
700 1 $aMAGNABOSCO, C. de U.
700 1 $aTROVO, J. B. de F.
773 $tIn: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM.
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