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J Agric Food Chem

Title:		Characterization of Aroma-Active Compounds in Northern Highbush Blueberries 'Bluecrop' (Vaccinium corymbosum 'Bluecrop') and 'Elliott' (Vaccinium corymbosum 'Elliott') by Gas Chromatography-Olfactometry Dilution Analysis and Odor Activity Value
Author(s):		Qian YL; Zhang D; An Y; Zhou Q; Qian MC;
Address:		"Department of Food Science and Technology, Oregon State University, Corvallis, Oregon 97331, United States. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China"
Journal Title:		J Agric Food Chem
Year:		2021
Volume:		20210511
Issue:		20
Page Number:		5691 - 5701
DOI:		10.1021/acs.jafc.1c01044
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"Aroma-active compounds in northern highbush blueberries 'Bluecrop' (Vaccinium corymbosum 'Bluecrop') and 'Elliott' (Vaccinium corymbosum 'Elliott') were isolated using solvent extraction followed by solvent-assisted flavor evaporation. The aroma-active compounds were compared by aroma extract dilution analysis (AEDA) on a polar and a chiral column and odor activity values (OAVs). The results showed that both cultivars had similar aroma-active compounds, but the flavor dilution (FD) factors and OAV values varied, responsible for the subtle aroma differences. AEDA (FD >/= 64) suggested that the important aroma-active compounds in both cultivars could be ethyl 2-methylbutanoate, ethyl 3-methylbutanoate, (Z)-3-hexenal, 1-octen-3-one, (Z)-3-hexen-1-ol, methional, linalool, (E,Z)-2,6-nonadienal, 2-methylbutanoic acid, alpha-terpineol, (E,E)-2,4-nonadienal, beta-damascenone, geraniol, geranyl acetone, o-cresol, eugenol, and vanillin. Different isomers can have different sensory thresholds and attributes. Enantiomer analysis revealed that although S-(+)-linalool was dominant in blueberry, R-(-)-linalool had a higher FD value and OAVs than that of the (S)-isomer. The S-(-)-alpha-terpineol was slightly elevated than R-(+)-alpha-terpineol in both cultivars"
Keywords:		"*Blueberry Plants Chromatography, Gas Flavoring Agents Gas Chromatography-Mass Spectrometry Odorants/analysis Olfactometry *Volatile Organic Compounds/analysis Aeda Oav R-(+)-alpha-terpineol R-(-)-linalool S-(+)-linalool S-(-)-alpha-terpineol 'Bluecrop' b;"
Notes:		"MedlineQian, Yanping L Zhang, Danni An, Yueqi Zhou, Qin Qian, Michael C eng 2021/05/12 J Agric Food Chem. 2021 May 26; 69(20):5691-5701. doi: 10.1021/acs.jafc.1c01044. Epub 2021 May 11"