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Description
  • Vznik hydroxykarbonylových a dikarbonylových sloučenin při degradaci monosacharidů; hydroxykarbonylové sloučeniny, dikarbonylové sločeniny, monosacharidy, glukosa, fruktosa, arabinosa, glyceraldehyd, 1,3-dihydroxyaceton (cs)
  • The formation of hydroxycarbonyl and dicarbonyl compounds from monosaccharides (glucose, fructose, arabinose, glyceraldehyde, and 1,3-dihydroxyacetone) was studied in three different model systems comprising an aqueous and alkaline solution of potassium peroxodisulfate (K2S2O8), and a solution of sodium hydroxide, respectively. In total, six hydroxycarbonyl (in the form of O-ethyloximes) and six dicarbonyl compounds (as quinoxaline derivatives) were identified by GC/MS. Acetol, glycolaldehyde, 1,3-dihydroxyacetone, methylglyoxal, and glyoxal were the most abundant low molecular weight carbonyls. Within the model systems studied, the yield of hydroxycarbonyl and dicarbonyl compounds was 0.32-4.90% (n/n) and 0.35-9.81% (n/n), respectively. The yield of dicarbonyls was higher than that of hydroxycarbonyls only in aqueous solution of K2S2O8 and in the other two model systems an inverse ratio of these two carbonyls was found. For the first time, ethylglyoxal was identified as a sugar degradation product an
  • The formation of hydroxycarbonyl and dicarbonyl compounds from monosaccharides (glucose, fructose, arabinose, glyceraldehyde, and 1,3-dihydroxyacetone) was studied in three different model systems comprising an aqueous and alkaline solution of potassium peroxodisulfate (K2S2O8), and a solution of sodium hydroxide, respectively. In total, six hydroxycarbonyl (in the form of O-ethyloximes) and six dicarbonyl compounds (as quinoxaline derivatives) were identified by GC/MS. Acetol, glycolaldehyde, 1,3-dihydroxyacetone, methylglyoxal, and glyoxal were the most abundant low molecular weight carbonyls. Within the model systems studied, the yield of hydroxycarbonyl and dicarbonyl compounds was 0.32-4.90% (n/n) and 0.35-9.81% (n/n), respectively. The yield of dicarbonyls was higher than that of hydroxycarbonyls only in aqueous solution of K2S2O8 and in the other two model systems an inverse ratio of these two carbonyls was found. For the first time, ethylglyoxal was identified as a sugar degradation product an (en)
Title
  • Formation of hydroxycarbonyl and dicarbonyl compounds during degradation of monosaccharides
  • Formation of hydroxycarbonyl and dicarbonyl compounds during degradation of monosaccharides (en)
  • Vznik hydroxykarbonylových a dikarbonylových sloučenin při degradaci monosacharidů (cs)
skos:prefLabel
  • Formation of hydroxycarbonyl and dicarbonyl compounds during degradation of monosaccharides
  • Formation of hydroxycarbonyl and dicarbonyl compounds during degradation of monosaccharides (en)
  • Vznik hydroxykarbonylových a dikarbonylových sloučenin při degradaci monosacharidů (cs)
skos:notation
  • RIV/60461373:22330/07:00019257!RIV08-MSM-22330___
http://linked.open.../vavai/riv/strany
  • 119-130
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(OC 125), Z(MSM6046137305)
http://linked.open...iv/cisloPeriodika
  • 3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 422384
http://linked.open...ai/riv/idVysledku
  • RIV/60461373:22330/07:00019257
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • -hydroxycarbonyl compounds; -dicarbonyl compounds; monosaccharides; glucose; fructose; arabinose; glyceraldehyde; 1; 3-dihydroxyacetone (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [C2BBC1E8CAA6]
http://linked.open...i/riv/nazevZdroje
  • Czech Journal of Food Science
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 25
http://linked.open...iv/tvurceVysledku
  • Cejpek, Karel
  • Velíšek, Jan
  • Novotný, Ondřej
http://linked.open...n/vavai/riv/zamer
issn
  • 1212-1800
number of pages
http://localhost/t...ganizacniJednotka
  • 22330
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