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Food Chem

Title:		Aroma characterization of regional Cascade and Chinook hops (Humulus lupulus L.)
Author(s):		Su X; Yin Y;
Address:		"Department of Food Science and Technology, Virginia Polytechnic Institute and State University, 1230 Washington Street SW, Blacksburg, VA 24061, USA. Electronic address: xueqians@vt.edu. Department of Food Science and Technology, Virginia Polytechnic Institute and State University, 1230 Washington Street SW, Blacksburg, VA 24061, USA. Electronic address: yunyin2@vt.edu"
Journal Title:		Food Chem
Year:		2021
Volume:		20210618
Issue:
Page Number:		130410 -
DOI:		10.1016/j.foodchem.2021.130410
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"Aroma compounds in Cascade and Chinook hops harvested from multiple Virginia locations were identified by gas chromatography-mass spectrometry-olfactometry (GC-MS-O) and aroma extract dilution analysis (AEDA). Selected aroma compounds were quantitated by combination of stable isotope dilution analysis (SIDA) and standard addition method (SAM). A total of 33 aroma-active compounds were detected in five samples with beta-myrcene, methyl octanoate, geraniol and linalool being the predominant compounds based on their high flavor dilution (FD) factors and odor activity values (OAVs). L-Calamenene and germacrene B was the major characteristic component unique to Cascade and Chinook variety, respectively. Principal component analysis (PCA) showed distinctive aroma profiles for all samples except for Blacksburg and Petersburg Cascade. Hierarchical cluster analysis (HCA) reflected the higher contents of most aroma-active compounds in Meadowview Cascade and Chinook when compared to their counterparts. The significant variations suggested the potential influences of environmental factors and agronomic practices on hop aroma quality"
Keywords:		Flavoring Agents Gas Chromatography-Mass Spectrometry *Humulus Odorants/analysis Olfactometry *Volatile Organic Compounds/analysis 2-Octanol (PubChem CID: 20083) Aroma chemistry Aroma extract dilution analysis (AEDA) Gas chromatography-mass spectrometry-o;
Notes:		"MedlineSu, Xueqian Yin, Yun eng England 2021/07/09 Food Chem. 2021 Dec 1; 364:130410. doi: 10.1016/j.foodchem.2021.130410. Epub 2021 Jun 18"