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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
28/07/1995 |
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Data da última atualização: |
09/11/1995 |
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Autoria: |
ESSERS, A. J. A. |
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Afiliação: |
Department of Food Science. Wageningen Agricultural University, Bomenweg 2, 6703 HD Wageningen. The Netherlands. |
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Título: |
Further improving the enzymic assay for cyanogens in cassava products. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Acta Horticulturae, n.375, p.97-104, 1994. |
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ISSN: |
0567-7572 |
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Idioma: |
Inglês |
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Conteúdo: |
A commonly used assay for routine determination of cyanogens in the enzymic assay developed by Cooke (1979), and improved by O'Brien et al. (1991). It compared well with earlier methods and was further improvedby more acceptable coloration and more accurate calculation of the cyanogenic glucosides and cyanohydrins (Essers et al., 1993). Isonicotinate/1,3-dimethyl barbiturate, the reagent used in the Konig reaction, was tested and found to have the following advantages over pyridine/pyrazolone, the color reagent used by Cooke and O'Brien et al.: it is less toxic and does not release repulsive vapors; it is quicker, cheaper and easier to handle; it has increased sensitivity and can be stored for longer. The new coloration has been applied successfully in laboratories in Uganda, The Netherlands and Malawi. An assay protocol is summarised. At Wageningen Agricultural University, the new assay was automated using a Gilson automated pipette station. The need for further improvements is discussed. |
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Palavras-Chave: |
Analysis; Analysis reaction; Cyanide; Isonicotinate; Konig reaction; Linamarin. |
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Thesaurus Nal: |
cassava. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01563naa a2200217 a 4500
001 1634129
005 1995-11-09
008 1994 bl uuuu u00u1 u #d
022 $a0567-7572
100 1 $aESSERS, A. J. A.
245 $aFurther improving the enzymic assay for cyanogens in cassava products.
260 $c1994
520 $aA commonly used assay for routine determination of cyanogens in the enzymic assay developed by Cooke (1979), and improved by O'Brien et al. (1991). It compared well with earlier methods and was further improvedby more acceptable coloration and more accurate calculation of the cyanogenic glucosides and cyanohydrins (Essers et al., 1993). Isonicotinate/1,3-dimethyl barbiturate, the reagent used in the Konig reaction, was tested and found to have the following advantages over pyridine/pyrazolone, the color reagent used by Cooke and O'Brien et al.: it is less toxic and does not release repulsive vapors; it is quicker, cheaper and easier to handle; it has increased sensitivity and can be stored for longer. The new coloration has been applied successfully in laboratories in Uganda, The Netherlands and Malawi. An assay protocol is summarised. At Wageningen Agricultural University, the new assay was automated using a Gilson automated pipette station. The need for further improvements is discussed.
650 $acassava
653 $aAnalysis
653 $aAnalysis reaction
653 $aCyanide
653 $aIsonicotinate
653 $aKonig reaction
653 $aLinamarin
773 $tActa Horticulturae$gn.375, p.97-104, 1994.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro |
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URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Agropecuária Oeste. |
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Data corrente: |
08/12/2014 |
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Data da última atualização: |
09/12/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
PAREDES JUNIOR, F. P.; PORTILHO, I. I. R.; CARVALHO, L. A.; MERCANTE, F. M. |
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Afiliação: |
FRANCISCO PEREIRA PAREDES JUNIOR, UEMS - AQUIDAUANA, MS; IRZO ISAAC ROSA PORTILHO, UEMS - DOURADOS; LAÉRCIO ALVES CARVALHO, UEMS - AQUIDAUANA, MS; FABIO MARTINS MERCANTE, CPAO. |
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Título: |
Atributos microbiológicos em cultivos de cana-de-açúcar sob métodos de preparo do solo. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Revista de Ciências Agrárias, Belém, v. 57, n. 2, p. 101-107-, abr.-jun. 2014. |
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DOI: |
http://dx.doi.org/10.4322/rca.2014.001 |
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Idioma: |
Português |
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Palavras-Chave: |
Attributes; Methods of tillage; Soil microbiological. |
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Thesaurus NAL: |
sugarcane. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/113238/1/Artigo-Francisco-PREPARO-CANA-984-6229-1-PB.pdf
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Marc: |
LEADER 00671naa a2200205 a 4500
001 2001873
005 2014-12-09
008 2014 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.4322/rca.2014.001$2DOI
100 1 $aPAREDES JUNIOR, F. P.
245 $aAtributos microbiológicos em cultivos de cana-de-açúcar sob métodos de preparo do solo.
260 $c2014
650 $asugarcane
653 $aAttributes
653 $aMethods of tillage
653 $aSoil microbiological
700 1 $aPORTILHO, I. I. R.
700 1 $aCARVALHO, L. A.
700 1 $aMERCANTE, F. M.
773 $tRevista de Ciências Agrárias, Belém$gv. 57, n. 2, p. 101-107-, abr.-jun. 2014.
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Registro original: |
Embrapa Agropecuária Oeste (CPAO) |
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