2-isopropyl-3-methoxypyrazine

6.0 ng per capsule

Earthy, like potato skins or dug soil”

Certified soft drinks flavour standard used to train professional tasters to recognize and scale the intensity of earthy character. 2-Isopropyl-3-methoxypyrazine is a potent off-flavour with a very low flavour threshold. It is introduced to soft drinks through contaminated formulation water or process water. It imparts an earthy note, reminscent of potato skins or dug soil.

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 evaluate 2-isopropyl-3-methoxypyrazine in soft drinks 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
6.0 ng per capsule
Threshold
The flavour threshold of 2-isopropyl-3-methoxypyrazine i soft drinks is 2 ng / l.
Origins
2-Isopropyl-3-methoxypyrazine (2-IMP) is introduced to soft drinks through use of contaminated formulation water or process water. It is formed by Actinobacteria in lakes, reservoirs and water distribution systems.
Importance
2-Isopropyl-3-methoxypyrazine is a potent off-flavour with a very low flavour threshold. It imparts an unpleasant earthy / mouldy note which is reminiscent of potato skins or dug soil. IMP may occur in admixture with other methoxypyrazines.
CAS registry number
The flavour threshold of 2-isopropyl-3-methoxypyrazine in soft drinks is 25773-40-4.
Other names
  • bean pyrazine
  • 2-methoxy-3-(1-methyl ethyl) pyrazine
  • 2-methoxy-3-isopropyl pyrazine
  • 2-methoxy-3-propan-2-ylpyrazine
  • 2-isopropyl-3-methoxypyrazine
  • 3-isopropyl-2-methoxypyrazine
Remarks
Methoxypyrazine taints can be caused by several compounds, of which 2-isopropyl-3-methoxypyrazine is only one. Water treatment practices can be used to remove such methoxypyrazines from water prior to use.
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
Free Shipping
Product image
earn 9 points
£89.00

Related flavours

You may also be interested in