BeerSci: How To Make Beer Foamier
Foam Face-off To determine the role of Cfg1p protein on beer foam stability, researchers made a strain of yeast that was lacking the gene associated with that protein. They then brewed beer with normal yeast (left test tube in each picture) and with the yeast lacking the foaming gene (right test tube in each picture). Blasco et al., Journal of Agricultural and Food ChemistryLike a lot of suds on the top of your beer pour? Scientists have found a gene for that. A couple of weeks ago, scientists from Australia and Spain published a paper in the Journal of Agricultural and Food Chemistry in which they reported finding a gene (and characterized the transcribed protein) in a particular yeast strain that made the resultant beer foamier, the first time scientists have ever done so. While knowing the identity of a particular yeast gene that promotes foaming isn't going to be of...