During the chemical technical production of glycerine, some by-products result, such as cyclic diglycerides and 3-Methoxy-1,2-propandiol (3-MPD), whereby the detection of these compounds into wine is an indication of illegal glycerine addition. If these compounds are detected into wine, then this wine is assessed as not marketable. 3-MPD can occur into wine in lower levels through allowed enzyme treatment, therefor there exist an intervention level for 3-MPD of 0,1 mg/l. The intervention level is only used, when the addition of glycerine containing enzyme preparation was done.
- Method
- Limit of detection cyclic diglycerides
- Limit of detection 3-MPD
- Natural occurrence (wine)
- Reason for analysis
- GC-MS
- 0,12 mg/l
- 0,01 mg/l
- –
- Detection of illegal addition from glycerine