Definition of furfural in English:

furfural

noun

mass nounChemistry
  • A colourless liquid used in synthetic resin manufacture, originally obtained by distilling bran.

    An aldehyde derived from furan; chemical formula: C₄H₃OCHO

    • ‘On the toxicity of furfural, I quoted from page 109 of the scoping report: ‘A particular chemical of concern that will be produced by the plant is furfural.’’
    • ‘Aldoses generally exist in solution as pyranoses, whereas ketoses generally exist as furanoses, hence the ability of ketoses to rapidly dehydrate to yield furfurals.’
    • ‘The liquor undergoes a process of further evaporation and fermentation to remove volatile compounds like methanol, furfural and ethanol.’
    • ‘Johann Doebereiner,, a German chemist accidentally discovered furfural in 1832 when he treated sugar with sulfuric acid and manganese dioxide.’
    • ‘In recent years it has been shown that reductones, furfurals and other related substances formed in heated milk are sugar fission products 1,2.’
    • ‘The process occurred by electrochemical oxidation of furfural under current or potential control.’
    • ‘Upon further heating, the sucrose forms hydroxymethyl furfural, which polymerizes into a the brown pigments that give color and flavor to the brittle.’
    • ‘This suggests that the reaction takes place in the water phase and that substituted furfurals enter this phase only with difficulty.’
    • ‘Glucose loses two water molecules and rearranges to form hydroxymethyl furfural, which polymerizes into brown pigments that add flavor and color to the candy.’
    • ‘However, such conditions also result in the formation of furfurals from glucose and xylose.’
    • ‘The furfurals, for instance, which have a bitter flavour when originally extracted, are transformed by the yeasts into compounds which have a range of flavours from smoked meat to leather.’
    • ‘This research concentrates mainly on the market potential for furfural and phenolic compounds and examines some of the features of new processing technologies that offer cost advantages.’

Origin

Late 19th century: from obsolete furfurol (in the same sense) + -al.

Pronunciation

furfural

/ˈfəːf(j)əral/