Fructose Chemistry
Contribuinte(s) |
Preedy, V.S. |
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Data(s) |
2012
|
Resumo |
Fructose is a six-carbon ketose monosaccharide. In aqueous solution and in the crystalline form, the majority of the molecules form ring structures. Of these, the six-membered pyranose form is the most abundant; however, about one-quarter of the molecules are in the five-membered, furanose form. While many of its reactions are similar to those of glucose, the presence of a ketone group in the chain, and the relative ease with which the molecule forms a five-membered furanose ring affects its chemistry and biochemistry. Specific pathways are required to enable organisms to exploit fructose in energy metabolism; these require the enzyme fructokinase and involve the conversion of fructose to glycolytic intermediates. Similarly, specific pathways for the biosynthesis of fructose and fructose-containing polymers, such as inulin, are required. Non-enzymatic glycation (fructation) by fructose has not been as extensively studied as the corresponding reactions with glucose. Nevertheless, especially in diabetic patients and fructose-rich foodstuffs, this reaction is likely to be important. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Royal Society of Chemistry |
Direitos |
info:eu-repo/semantics/restrictedAccess |
Fonte |
Timson , D 2012 , Fructose Chemistry . in V S Preedy (ed.) , Dietary Sugars . Food and Nutritional Components in Focus. , Royal Society of Chemistry . DOI: 10.1039/9781849734929-00115 |
Palavras-Chave | #/dk/atira/pure/subjectarea/asjc/1600 #Chemistry(all) |
Tipo |
contributionToPeriodical |