FOOD 3260 Study Guide - Final Guide: Malt, Mashing, Diacetyl
12 Apr 2014
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2 row has lower yield, 6 row higher yield. 6 row has lower endosperm to husk ratio. 2 row for pale malt (low smm, dms precursor) Boil wort 90 min + in open vessel. Increase gibberellins (hormone that stimulates hydrolytic enzyme production: germination 3-8 days. Proteolytic enzymes break down proteins: screening and blending, drying/kilning. Provides protection for enzymes and prevents malt spoilage. Hops: humulus lupulus flower contains lupulin with bitter substances and aromatic oils, components, alpha acids (90% of bitterness) Adumulone complements humulones: beta acids. Humulene component: production, use of hop cones is rare, pellets hammer milled and compressed = more stable, extract. Extracted with liquid or super critical co2. Can be separated into hop resin and oil. Pre isomerized hop can be used to add hop character to finished beers: amount determines style of beer. More ferm by products: higher alcohols, esters. Differences may disappear with recycled yeast: unable to ferment melibiose, lager yeast, s. pastorianus, bottom fermenter.
