Definition of acetaldehyde in English:



mass nounChemistry
  • A colourless volatile liquid aldehyde obtained by oxidizing ethanol.

    Alternative name: ethanal; chemical formula: CH₃CHO

    • ‘To investigate this point further, we first established the impact of oxygen deprivation, and also of a return to air, on the dynamics of fermentation by monitoring oxygen and the production of ethanol, acetaldehyde and carbon dioxide.’
    • ‘Though the metabolism of acetaldehyde is of interest and importance in any discussion of ethanol detoxification, space limitations discourage such commentary.’
    • ‘Meanwhile, as the liver metabolises alcohol it produces acetaldehyde, a vinegar-like substance which has a toxic effects on the liver itself, the brain and the stomach lining, causing severe headaches.’
    • ‘An enzyme in the liver called alcohol dehydrogenase strips electrons from ethanol to form acetaldehyde.’
    • ‘Another contributory factor is the conversion of alcohol to acetaldehyde by the liver.’
    • ‘Most researchers believe that hangovers are created by build ups of acetaldehyde, although others shift the blame from ethanol and its side products to methanol.’
    • ‘The predominant emissions from uncoated wood and wood-based materials were aldehydes, mainly acetaldehyde, propanal, butanal, pentanal, hexanal, and acetone.’
    • ‘Number one is the build up of toxins such as acetaldehyde and free radicals, as your liver struggles to cope with metabolizing large amounts of alcohol.’
    • ‘The chemicals that most often exceeded limits were naphthalene, formaldehyde and acetaldehyde.’
    • ‘It occurs synthetically as a byproduct in the manufacture of acetaldehyde and formaldehyde and during the atmospheric oxidation of turpentine.’
    • ‘Over 90% of the variation in flavor scores could be explained by changes in ethanol and acetaldehyde content.’
    • ‘A second dehydrogenation turns acetaldehyde into acetic acid, aka vinegar, which gets digested as usual.’
    • ‘Alcohol and acetaldehyde (the initial metabolite of ethanol) have been examined in experimental test systems.’
    • ‘The first enzyme converts alcohol into a very toxic substance called acetaldehyde.’
    • ‘The jury is still out on whether Hangovers are caused by too much acetaldehyde in the blood stream, or by leaching by Alcohol of essential vitamins, minerals, and water, or by any number of other causes.’
    • ‘The enzyme aldehyde dehydrogenase is responsible for efficient metabolism of alcohol after it has been oxidised to acetaldehyde.’
    • ‘The fumes also contain sulfur dioxide, and various aldehydes, primarily formaldehyde as well as acetaldehyde and acrolein.’
    • ‘Ethanol is primarily metabolized to acetaldehyde by the action of alcohol dehydrogenase.’
    • ‘The validity of this assay may be questioned since acetaldehyde is a highly volatile and reactive molecule.’
    • ‘Mucous membrane irritation occurs at considerably higher concentrations for acetaldehyde than for formaldehyde, and the risk of cancer has been investigated less vigorously.’