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  • 标题:Study of carbohydrates present in the cladodes of Opuntia ficus-indica (fodder palm), according to age and season
  • 本地全文:下载
  • 作者:Ribeiro, Erika Maria de Oliveira ; Silva, Nicácio Henrique da ; Lima Filho, José Luiz de
  • 期刊名称:Food Science and Technology (Campinas)
  • 印刷版ISSN:0101-2061
  • 电子版ISSN:1678-457X
  • 出版年度:2010
  • 卷号:30
  • 期号:4
  • 页码:933-939
  • DOI:10.1590/S0101-20612010000400015
  • 语种:English
  • 出版社:Sociedade Brasileira de Ciência e Tecnologia de Alimentos
  • 摘要:

    Types and content of carbohydrates were evaluated by chemical (spectrophotometric assay) and physicochemical (Thin Layer Chromatography - TLC and High Performance Liquid Chromatography - HPLC) methods in some Opuntia ficus-indica varieties according to age and season. The samples comprised four varieties of palm (giant, copena F1, clone 20, and round palm). The results demonstrated that the four varieties of palm contain a good quantity of neutral and acid sugars in both summer and winter seasons. However, samples collected in the summer presented a higher content of carbohydrates specially glucose, fructose, galactose, xylose, and arabinose. The tertiary cladode (old cladode) presented almost the double content of sugar found in the quaternary cladodes (young cladodes). Pectic polysaccharides were sequentially extracted with water at 60 ºC, and EDTA at 60 ºC solution resulting in Water-Soluble Pectin (WSP) and a Chelating-Soluble Pectin (CSP) respectively. Galacturonic acid was detected in the fractions WSP and CSP. However, the fraction CSP presented the highest content of sugar acid.

  • 关键词:Opuntia ficus-indica;carboidratos;polissacarídeos pécticos
  • 其他关键词:Opuntia ficus-indica;carbohydrates;pectin
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