Gas-Liquid Chromatographic Determination of the Cofractions of α-Acids and β-Acids in Male and Female Hops by Direct Pyrolysis of LupulinFootnote11 Cooperative investigation of the Oregon Agricultural Experiment Station, Department of Agricultural Chemistry, and the Plant Science Research Division, Agricultural Research Service, U. S. Department of Agriculture, Corvallis, Ore. 97331. Technical paper No. 3091, Oregon Agricultural Experiment Station, Corvallis, Ore. This work was supported in part by the United States Brewers Association.
, Footnote33 Mention of a trademark or proprietary product does not constitute a guarantee or warranty of the product by the U. S. Department of Agriculture, and does not imply its approval to the exclusion of other products that may also be suitable.
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