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Sam T. Likens

United States Department of Agriculture

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Publication

Featured researches published by Sam T. Likens.

Journal of Chromatography A | 1966

Gas Chromatography evidence for the occurrence of hop oil components in beer

Gail B. Nickerson; Sam T. Likens

Abstract Steam-volatile, pentane-soluble concentrates collected form wort and beer were analyzed by gas chromatography. Two hop oil components, methyl dec-4-enoate and methyl deca-4,8-dienoate, were identified in wort. Evidence is presented to demonstrate that these compounds are probably trans-esterified during fermentation, and that they appear in the final product as the ethyl esters.

Journal of Agricultural and Food Chemistry | 1981

Floral hop aroma in beer

Val E. Peacock; Max L. Deinzer; Sam T. Likens; Gail B. Nickerson; Lois A. McGill

Journal of Agricultural and Food Chemistry | 1967

Identification of hop varieties by gas chromatographic analysis of their essential oils. Constancy of oil composition under various environmental influences

Sam T. Likens; Gail B. Nickerson

Journal of The American Society of Brewing Chemists | 1979

Hop Storage Index

Gail B. Nickerson; Sam T. Likens

Journal of The American Society of Brewing Chemists | 1978

The Effect of Isohumulone/Isocohumulone Ratio on Beer Head Retention

David W. Diffor; Sam T. Likens; Arthur J. Rehberger; Ronald J. Burkhardt

Crop Science | 1978

Relationship Between Alpha Acids, Beta Acids, and Lupulin Content of Hops 1

Sam T. Likens; Gail B. Nickerson; Alfred Haunold; C. E. Zimmermann

Journal of The American Society of Brewing Chemists | 1984

Nugget, a New Hop Cultivar with High Alpha-Acids Potential

Alfred Haunold; Sam T. Likens; Gail B. Nickerson; Stephen Kenny

Crop Science | 1984

Registration of USDA 65009 Female Hop Germplasm

Alfred Haunold; Gail B. Nickerson; Sam T. Likens; C. E. Horner

Crop Science | 1975

Registration of Comet Hop1 (Reg. No. 3)

C. E. Zimmermann; Sam T. Likens; Alfred Haunold; C. E. Horner; D. D. Roberts

Crop Science | 1972

Registration of Cascade Hop1 (Reg. No. 1)

S. N. Brooks; C. E. Horner; Sam T. Likens; C. E. Zimmermann

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Gail B. Nickerson

Oregon State University

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Alfred Haunold

Oregon State University

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C. E. Horner

United States Department of Agriculture

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C. E. Zimmermann

United States Department of Agriculture

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Richard Hampton

Agricultural Research Service

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Stanley N. Brooks

United States Department of Agriculture

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G.B. Nickerson

United States Department of Agriculture

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Max L. Deinzer

Oregon State University

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Stephen Kenny

Washington State University

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Val E. Peacock

Oregon State University

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