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Comparacao entre o metodo fisico da balanca hidrostatica e metodos quimicos na determinacao do amido em raizes de mandioca

By: Contributor(s): Material type: ArticleArticleLanguage: Portuguese Description: 18(1):55-57Subject(s): LOC classification:
  • 17109
In: Pesquisa Agropecuaria BrasileiraSummary: Se determino el contenido de almidon en las raices de yuca cv. Mantiqueira, Riqueza y Branca de Santa Catarina, cosechados a los 9, 12, 15 y 18 meses de la siembra, mediante el metodo fisico de la balanza hidrostatica y con 2 metodos quimicos de extraccion por hidrolisis acida: titulometrico de Fehling y colorimetrico de Somogyi-Nelson. Se encontraron correlaciones significativas entre estos 2 metodos; sin embargo, las correlaciones de los datos del almidon segun la balanza hidrostatica y los metodos de Fehling y Somogyi-Nelson no fueron significativos. El metodo de la balanza hidrostatica no puede substituir los metodos quimicos en la determinacion del contenido de almidon en las raices de la yuca. (RA-CIAT)Summary: Root starch content of cassava cv. Mantiqueira, Riqueza, and Branca de Santa Catarina, harvested 9, 12, 15, and 18 mo. after planting, was determined by the physical method of hydrostatic balance and 2 chemical methods using acid hydrolysis extraction: titrimetrically (Fehling solution) and by colorimetry (Somogyi- Nelson method). There were significant correlations between these 2 methods; however, the correlations between hydrostatic balance and Fehling and Somogyi-Nelson starch data were not significant. The physical method of hydrostatic balance can not replace chemical methods of starch determination in cassava roots. (AS)
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Journal Article Journal Article CIAT Library Document collection CINFOS Document Collection CINFOS 17109 (Browse shelf(Opens below)) c.1 Short Loan 100059733
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Se determino el contenido de almidon en las raices de yuca cv. Mantiqueira, Riqueza y Branca de Santa Catarina, cosechados a los 9, 12, 15 y 18 meses de la siembra, mediante el metodo fisico de la balanza hidrostatica y con 2 metodos quimicos de extraccion por hidrolisis acida: titulometrico de Fehling y colorimetrico de Somogyi-Nelson. Se encontraron correlaciones significativas entre estos 2 metodos; sin embargo, las correlaciones de los datos del almidon segun la balanza hidrostatica y los metodos de Fehling y Somogyi-Nelson no fueron significativos. El metodo de la balanza hidrostatica no puede substituir los metodos quimicos en la determinacion del contenido de almidon en las raices de la yuca. (RA-CIAT) spa

Root starch content of cassava cv. Mantiqueira, Riqueza, and Branca de Santa Catarina, harvested 9, 12, 15, and 18 mo. after planting, was determined by the physical method of hydrostatic balance and 2 chemical methods using acid hydrolysis extraction: titrimetrically (Fehling solution) and by colorimetry (Somogyi- Nelson method). There were significant correlations between these 2 methods; however, the correlations between hydrostatic balance and Fehling and Somogyi-Nelson starch data were not significant. The physical method of hydrostatic balance can not replace chemical methods of starch determination in cassava roots. (AS) eng

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