Literature cited
- Wolfe, P. H. A Study of Factors Affecting the Extraction of Flavor When Dry Hopping Beer. Master’s thesis, Oregon State University, Corvallis, OR, 2012.
- Hauser, D. G.; Lafontaine, S. R.; Shellhammer, T. H. The Extraction Efficiency of Dry-Hopping. J. Am. Soc. Brew. Chem. 2019, 77, 188–198. DOI: 10.1080/03610470.2019.1617622.
- Kirkendall, J. A.; Mitchell, C. A.; Chadwick, L. R. The Freshening Power of Centennial Hops. J. Am. Soc. Brew. Chem. 2018, 76, 178–184. DOI: 10.1080/03610470.2018.1469081.
- Kirkpatrick, K. R.; Shellhammer, T. H. Evidence of Dextrin Hydrolyzing Enzymes in Cascade Hops (Humulus lupulus). J. Agric. Food Chem. 2018, 66, 9121–9126. DOI: 10.1021/acs.jafc.8b03563.
- McGarry, S. Dry-Hopping with Humulus lupulus: The Creeping Diastases; School of Engineering & Physical Sciences Research Proceedings. MSc project, 2019, pp 1–9.
- Brown, H. T.; Morris, G. H. On Certain Functions of Hops Used in the Dry-Hopping of Beers. (Abridged Version Accessible via https://Books.google.com/Books?idDMsI9AQAAMAAJ&pg D PA93 as Two Excerpts from the Brewers Guardian 1893; Part 1. March 28, 1893 (No. 586, pp 93–94); Part 2. April 11, 1893 (No. 587, pp. 107–109). Trans. Inst. Brew. 1893, VI.
- Janicki, J.; Kotasthane, W. V.; Parker, A.; Walker, T. K. The Diastatic Activity of Hops, Together with a Note on Maltase in Hops. J. Inst. Brew. 1941, 47, 24–36. DOI: 10.1002/j.2050-0416.1941.tb06070.x.
- Brendel, S.; Hofmann, T.; Granvogl, M. Hop-Induced Formation of Ethyl Esters in Dry-Hopped Beer; Food Production. Process. Nutr. 2020, 2, 1–7.
- Werrie, P. Y. Study of Hop Enzymatic Activity during Dry-Hopping and Its Impact on Yeast Physiology and on the Beer Aroma Profile: A Sugar Story. Master’s thesis, Liege University, Belgium, 2018.
- Rubottom, L. N. Hop Kilning Temperature Sensitivity of Dextrin-Reducing Enzymes in Hops. Master’s thesis, Oregon State University, Corvallis, OR, 2020.
- Barry, S.; Muggah, E. M.; McSweeney, M. B.; Walker, S. A Preliminary Investigation into Differences in Hops’ Aroma Attributes. Int. J. Food Sci. Technol. 2018, 53, 804–811. DOI: 10.1111/ijfs.13656.
- Forster, A. Systematic Differences between Growing Areas? Brauwelt Int. 2015, 2015/V, 280–285.
- Green, C. P. Comparison of Tettnanger, Saaz, Hallertau, and Fuggle Hops Grown in the USA, Australia, and Europe. J. Inst. Brew. 1997, 103, 239–243. DOI: 10.1002/j.2050-0416.1997.tb00951.x.
- Rodolfi, M.; Chiancone, B.; Liberatore, C. M.; Fabbri, A.; Cirlini, M.; Ganino, T. Changes in Chemical Profile of Cascade Hop Cones According to the Growing Area. J. Sci. Food Agric. 2019, 99, 6011–6019. DOI: 10.1002/jsfa.9876.
- Forster, A.; Beck, B.; Schmidt, R.; Jansen, C.; Mellenthin, A. On the Composition of Low Molecular Weight Polyphenols in Different Varieties of Hops and from Two Growing Areas. Monatsschr. Brauwiss. 2002, 55, 98–108.
- Morcol, T. B.; Negrin, A.; Matthews, P. D.; Kennelly, E. J. Hop (Humulus lupulus L.) Terroir Has Large Effect on a Glycosylated Green Leaf Volatile but not on other Aroma Glycosides. Food Chem. 2020, 321, 126644. DOI: 10.1016/j.foodchem.2020.126644.
- Kishimoto, T.; Kobayashi, M.; Yako, N.; Iida, A.; Wanikawa, A. Comparison of 4-Mercapto-4-Methylpentan-2-One Contents in Hop Cultivars from Different Growing Regions. J. Agric. Food Chem. 2008, 56, 1051–1057. DOI: 10.1021/jf072173e.
- Van Holle, A.; Van Landschoot, A.; Roldan-Ruiz, I.; Naudts, D.; De Keukeleire, D. The Brewing Value of Amarillo Hops (Humulus lupulus L.) Grown in Northwestern USA: A Preliminary Study of Terroir Significance. J. Inst. Brew. 2017, 123, 312–318. DOI: 10.1002/jib.433.
- Forster, A.; Gahr, A. A Comparison of the Analytical and Brewing Characteristics of Cascade and Comet Hop Varieties as Grown in Yakima (USA) and Hallertau (Germany). Brew. Sci. 2014, 67, 137–148.
- Liu, Z.; Wang, Y.; Liu, Y. Geographical Origins and Varieties Identification of Hops (Humulus lupulus L.) by Multi-Metal Elements Fingerprinting and the Relationships with Functional Ingredients. Food Chem. 2019, 289, 522–530. DOI: 10.1016/j.foodchem.2019.03.099.
- Pepi, S.; Chicca, M.; Telloli, C.; Di Roma, A.; Grisenti, P.; Tessari, U.; Vaccaro, C. Discrimination of Geographical Origin of Hop (Humulus lupulus L.) Using Geochemical Elements Combined with Statistical Analysis. Environ. Geochem. Health 2019, 41, 1559–1576. DOI: 10.1007/s10653-018-0232-7.
- Verhoeven, E.; Coleman, L.; Weaver, G.; Townsend, S.; Gallagher, A.; Shellhammer, T. H. First Steps toward Understanding the Regional Identity of Hops Grown in the Willamette Valley, Oregon. Tech. Quart. Master Brew. Assoc. Am. 2019, 56, 141–148.
- Pobasco, E. G.; Perrault, J. Hop Plant Named ‘HBC 369. US Patent No.: US PP24,215 P3, 2013.
- Townsend, M. S. Hop Plant Named ‘OR91331. US Patent No.: US PP31,042 P3, 2019.
- Zimmerman, C. E. Hop Plant Named ‘YCR Accession No. 14. US Patent No.: US 12,213 P2, 2001.
- Schoeneberger, P. J.; Wysocki, D. A.; Benham, E. C. Field Book for Describing and Sampling Soils; Natural Resources Conservation Service: Lincoln, NE, 2012.
- Soil Survey Staff. Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys; U.S. Department of Agriculture Handbook, Washington, DC; 1999; p 436.
- Soil Survey Staff. N. R. C. S. United States Department of Agriculture. Official Soil Series Descriptions. 2020. https://www.nrcs.usda.gov/wps/portal/nrcs/main/soils/survey/.
- PRISM Climate Group. http://prism.oregonstate.edu. 4 Feb 2004 ed.; University, O. S., Ed., 2004.
- Brooks, S. N.; Horner, C. E.; Likens, S. T. Hop Production; Agricultural Informational Bulletin 240, Agricultural Research Service, Washington, DC; 1961; p 4.
- Sirrine, J. R. Sustainable Hop Production in the Great Lakes Region; Michigan State University Extension: Extension Bulletin, East Lansing, MI; 2010.
- Lafontaine, S. R.; Varnum, S.; Roland, A.; Delpech, S.; Dagan, L.; Vollmer, D.; Kishimoto, T.; Shellhammer, T. H. Impact of Harvest Maturity on the Aroma Characteristics and Chemistry of Cascade Hops Used for Dry-Hopping. Food Chem. 2019, 278, 228–239. DOI: 10.1016/j.foodchem.2018.10.148.
- Menary, R. C.; Doe, P. E. Some Morphological and Chemical Changes in Hops during Maturation. J. Sci. Food Agric. 1983, 34, 921–929. DOI: 10.1002/jsfa.2740340905.
- Sharp, D. C.; Townsend, M. S.; Qian, Y.; Shellhammer, T. H. Effect of Harvest Maturity on the Chemical Composition of Cascade and Willamette Hops. J. Am. Soc. Brew. Chem. 2014, 72, 231–238. DOI: 10.1094/ASBCJ-2014-1002-01.
- Kirkpatrick, K. R.; Shellhammer, T. H. A Cultivar-Based Screening of Hops for Dextrin Degrading Enzymatic Potential. J. Am. Soc. Brew. Chem. 2018, 76, 247–256. DOI: 10.1080/03610470.2018.1546091.
- ASBC Methods of Analysis. Sugars and Syrups Method 18. Fermentable Carbohydrates by Cation Exchange HPLC. Approved 1997. https://www.asbcnet.org/Methods/HopsMethods/Pages/default.aspx.
- MacWilliam, I. C. Chemistry of Hop Constituents. IV. The Free Sugars. J. Inst. Brew. 1953, 59, 142–147. DOI: 10.1002/j.2050-0416.1953.tb06204.x.
- Minervini, J. M.; O’Connor, J. E.; Wells, R. E. Maps Showing Inundation Depths, Ice-Rafted Erratics, and Sedimentary Facies of Late Pleistocene Missoula Floods in the Willamette Valley, Oregon; U.S. Department of the Interior, U. S. Geological Survey Open-File Report 03-408. 2003; https://pubs.usgs.gov/of/2003/of03-408/
- Evans, R. Hop Management in Water-Short Periods. EM4816, Drought Advisory, 2003.
- Gent, D. H.; Barbour, J. D.; Dreves, A. J.; James, D. G.; Parker, R.; Walsh, D. B. (Eds.) Field Guide for Integrated Pest Management in Hops, 2nd ed.; Oregon State University, University of Idaho, USDA Agricultural Research Service, Washington State University, Pullman, WA, 2010.
- Iskra, A. E.; Lafontaine, S. R.; Trippe, K. M.; Massie, S. T.; Phillips, C. L.; Twomey, M. C.; Shellhammer, T. H.; Gent, D. H. Influence of Nitrogen Fertility Practices on Hop Cone Quality. J. Am. Soc. Brew. Chem. 2019, 77, 199–209. DOI: 10.1080/03610470.2019.1616276.
- Gingrich, C.; Hart, J.; Christensen, N. Hops Fertilizer Guide. OSU Extension Catalog 1994, FG79, 1–5.
- Gent, D. H.; Twomey, M. C.; Wolfenbarger, S. N.; Woods, J. L. Pre- and Postinfection Activity of Fungicides in Control of Hop Downy Mildew. Plant Dis. 2015, 99, 858–865. DOI: 10.1094/PDIS-10-14-1004-RE.
- Woods, J. L.; Gent, D. H. Susceptibility of Hop Cultivars to Downy Mildew: Associations with Chemical Characteristics and Region of Origin. Plant Health Progress 2016, 17, 42–48. DOI: 10.1094/PHP-RS-15-0044.
- Ellis, M. A.; Ferree, D. C.; Spring, D. E. Photosynthesis, Transpiration, and Carbohydrate Content of Apple Leaves Infected by Podosphaera leucotrica. Phytopathology 1981, 71, 392–395. DOI: 10.1094/Phyto-71-392.
- Scholes, J. D.; Lee, P. J.; Horton, P.; Lewis, D. H. Invertase: Understanding Changes in the Photosynthetic and Carbohydrate Metabolism of Barley Leaves Infected with Powdery Mildew. New Phytol. 1994, 126, 213–222. DOI: 10.1111/j.1469-8137.1994.tb03939.x.
- Fonseca, N. R.; Caballero, J. I.; Kim, M. S.; Stewart, J. E.; Guimarães, L. M. S.; Alfenas, A. C.; Klopfenstein, N. B. Transcriptome Analysis of a Powdery Mildew Pathogen (Podosphaera pannosa) Infecting Eucalyptus urophylla: De Novo Assembly, Expression Profiling and Secretome Prediction. For. Path. 2019, 49, e12508. DOI: 10.1111/efp.12508.
- Purayannur, S.; Cano, L. M.; Bowman, M. J.; Childs, K. L.; Gent, D. H.; Quesada-Ocampo, L. M. The Effector Repertoire of the Hop Downy Mildew Pathogen Pseudoperonospora humuli. Front. Genet. 2020, 11, 910. DOI: 10.3389/fgene.2020.00910.
- Coley-Smith, J. R. Overwintering of Hop Downy Mildew Pseudoperonospora humuli (Miy. And Tak.) Wilson. Ann. Appl. Biol. 1962, 50, 235–243. DOI: 10.1111/j.1744-7348.1962.tb06006.x.
- Liyanage, A. d. S.; Royle, D. J. Overwintering of Sphaerotheca humuli, the Cause of Hop Powdery Mildew. Ann. Appl. Biol. 1976, 83, 381–394. DOI: 10.1111/j.1744-7348.1976.tb01709.x.
- Gent, D. H.; Nelson, M. E.; George, A. E.; Grove, G. G.; Mahaffee, W. F.; Ocamb, C. M.; Barbour, J. D.; Peetz, A.; Turechek, W. W. A Decade of Hop Powdery Mildew in the Pacific Northwest. Plant Health Progress 2008, 9, 33. DOI: 10.1094/PHP-2008-0314-01-RV.