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  • Harvest maturity of Cascade and Willamette hops

    Creator:
    Sharp, Daniel C.
    Abstract:
    Hops (Humulus lupulus L.) are primarily used to provide specific characteristics to beer, such as bitterness, aroma, flavor, and microbial stability. The chemical composition of hops, relative to how they are used during the brewing process, dictates the expression of these characteristics. Of the raw ingredients that go into making...
    Resource Type:
    Masters Thesis

  • Human bitterness detection thresholds of hop acids in beer and honey

    Creator:
    Kolpin, Kathryn M.
    Abstract:
    Alpha acids are found in the lupulin glands of hops cones. These acids have no bitterness of their own, but can be isomerized and subsequently hydrogenated to form bitter iso-α-acids and tetrahydroiso-α-acids respectively. Current literature values for the detection thresholds of iso-α-acid and tetrahydroiso-α-acid in lager beer have been reported...
    Resource Type:
    Masters Thesis