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The Chemistry of Bell Peppers

Colour and Aroma


© Compound Interest

The Chemistry of Bell Peppers – Colour and Aroma

Bell peppers come in a range of hues, from fresh greens to vibrant reds. Chemical pigments are behind these, but what changes to cause peppers to travel through this spectrum of colours? Here we take a look at the compounds behind the colours (as well as some pepper aroma chemistry) – and find that peppers have some extraordinary chemistry to thank for some of their hues.

  • carotenoids
  • photosynthesis
  • aldehydes
  • volatile compounds
  • Pinacol Rearrangement
  • ketones
  • capsanthin
  • violaxanthin
  • beta-carotene
  • capsorubin
  • bell peppers
  • 2-hexenal
  • 2,6-nonadienal
  • 3-Isobutyl-2-methox…
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