dimethyl disulphide

230 µg per capsule

Rotten vegetable, like a sewage treatment plant”

Certified soft drinks flavour standard used to train professional tasters to recognize and scale the intensity of rotten vegetable character. Dimethyl disulphide usually contaminates soft drinks through use of insufficiently-purified carbon dioxide for carbonation. It can also arise to a limited extent through microbiological spoilage and non-enzymic reactions taking place in the product. It imparts an unpleasant reduced sulphur character, reminscent of rotten vegetables or a sewage treatment plant.

Food grade | free from sensory impurities | extensively tested | safe to smell and taste.

Flavour cards

Flavour standard information

Technical specification

Assessment
The best way to detect rotten vegetable, sulphury off-flavours in soft drinks imparted by dimethyl disulphide is as follows. Without covering the glass, swirl the sample to release the aroma. Take a single short sniff. Repeat as necessary.
Amount of flavour per capsule
230 µg per capsule
Threshold
The flavour threshold of dimethyl disulphide in soft drinks is 75 µg / l.
Origins
Dimethyl disulphide (DMDS) is a contaminant which can be introduced into soft drinks through use of insufficiently-purified carbon dioxide for carbonation. It can also arise through microbiological spoilage of ingredients and packaged product, and to a limited extent through non-microbiological chemical reactions.
Importance
Dimethyl disulphide imparts an unpleasant reduced sulphur note to soft drinks, reminiscent of rotten vegetables or a sewage treatment plant. This flavour can also be Indicative of contamination of the carbon dioxide supply used to carbonated fizzy drinks. The intensity of the odour is increased in the presence of other sulphur compounds.
CAS registry number
The CAS registry number for dimethyl disulphide is 624-92-0.
Other names
  • DMDS
  • dimethyl disulfide
  • dimethyl disulfane
  • 2,3-dithiabutane
  • methyl disulfide
  • (methyl dithio) methane
  • methyl dithiomethane
  • methyldithiomethane
  • methyldisulfanylmethane
Remarks
Other sulphur compounds may be found alongside dimethyl disulphide in contaminated carbon dioxide. When contributed through contaminated water other sulphur compounds and / or methoxypyrazines may also be present.
Threshold distribution
Graph
Capsules per pot
10
Legal notices
This product is protected by the following trade marks and patents:
  • US Patent no. D679900
  • European Community Trade Mark
    Registration no. 009937574
  • European Community Trade Mark
    Registration no. 009856527
  • US Trade Mark Registration no. 4345057
  • US Trade Mark Registration no. 4345056
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