zymurgy refers to the art or practice of fermentation. Unsurprisingly, it is best known within the fields of winemaking and brewing. The journal of the American Homebrewers Association has that title and its readers may be called zymurgists. If you need a related adjective, there’s zymurgical. The related word zymology (adjective zymologist), is employed for that part of chemistry dealing with the fermentation action of yeasts, especially products that are intended for human consumption. All these words come from Greek zume, meaning a leaven, typically a yeast, that’s added to make a substance ferment. It’s also the origin of enzyme.
Definition from Michael Quinion's World Wide Words.
Image from http://www.zdwnet.org/tag/beer.