Analysis of Diacetyl and other Vicinal Diketones (VDK’s) in alcoholic beverages.
May 15 2015 Read 2042 Times
Vicinal diketones (VDK) are naturally produced compounds in the fermentation process. The monitoring of VDK levels is of great importance as the concentration of these compounds can greatly alter the flavour of a beverage. VDK’s produce a butter like flavour in the beverage so are undesirable in lighter beers that want a clean crisp taste, but are actually wanted at higher levels in wines to give a smoother taste and feel. The most commonly monitored VDKs are 2,3-butanedione also known a Diacetyl and 2,3-pentanedione also known as Acetyl Propionyl. VDK’s are typically found in the 0-100ppb range in beers, and can be anywhere from 100 to 5000ppb in wine.
The rise in popularity of craft beer has seen a dramatic rise in the number of smaller independent breweries. Many of which cannot justify they cost and space of large expensive GC systems. A method has been developed using the Ellutia 200 series Gas Chromatograph and the Ellutia EL-2100 Head-Space autosampler to provide an offering that can address the analysis at a lower entry price.
The System is able to analyse the compounds of interest down to the required low ppb levels.
The Ellutia 200 series GC and EL2100 autosampler can provide a simple lower cost solution to VDK analysis allowing breweries with smaller budgets the ability to perform this useful analysis. For Further information please visit. www.ellutia.com
Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.
In This Edition Articles - Enhanced Sample Preparation - Identifying Inherent Contamination in Deep Well Microplates - How to Determine Extra Column Dispersion and Extra Column Volume - Th...
View all digital editions
Jul 29 2018 Washington DC, USA
Aug 02 2018 Barcelona, Spain
Aug 06 2018 Berlin, Germany
Aug 26 2018 Florence, Italy
Sep 05 2018 Chiba, Japan