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J Agric Food Chem

Title:		Potent Odorants of Characteristic Floral/Sweet Odor in Chinese Chrysanthemum Flower Tea Infusion
Author(s):		Kaneko S; Chen J; Wu J; Suzuki Y; Ma L; Kumazawa K;
Address:		"Ogawa & Co. Ltd. , Chidori 15-7, 279-0032, Urayasu, Chiba, Japan. Ogawa Flavors & Fragrances (Shanghai) Co., Ltd. , 85 Jiangtian Road (East), Songjiang District, Shanghai 201613, China"
Journal Title:		J Agric Food Chem
Year:		2017
Volume:		20171109
Issue:		46
Page Number:		10058 - 10063
DOI:		10.1021/acs.jafc.7b04116
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"An investigation using the aroma extract dilution analysis (AEDA) technique applied to the aroma concentrates prepared from the tea infusions of two different types of Chinese chrysanthemum flowers (flower buds, blooming flowers) revealed that 29 aroma peaks were detected in the aroma concentrates, and 17 compounds were newly identified or tentatively identified in the chrysanthemum flower tea. AEDA also revealed that the aroma peaks having high flavor dilution factors mainly consisted of a floral/sweet note in addition to metallic and phenol-like/spicy notes. Among them, four aroma peaks having a floral/sweet were identified as verbenone, ethyl 3-phenylpropanoate, propyl 3-phenylpropanoate, and ethyl cinnamate, and a semiquantitative analysis revealed that the flower buds were rich in these compounds. Furthermore, a chiral analysis revealed that (-)-verbenone existed in both flowers at a 3 times higher concentration than (+)-verbenone. Additionally, because the detection threshold of (-)-verbenone was lower than that of the (+)-verbenone, it is concluded that the (-)-isomer was a main contributor of the aroma peak of verbenone in the chrysanthemum flower tea"
Keywords:		Chrysanthemum/*chemistry Flavoring Agents/*chemistry Flowers/*chemistry Gas Chromatography-Mass Spectrometry Humans Odorants/*analysis Smell Taste Tea/*chemistry 3-phenylpropanoate aroma extract dilution analysis chrysanthemum flower tea cinnamate verbeno;
Notes:		"MedlineKaneko, Shu Chen, Jingxiu Wu, Jieming Suzuki, Yuto Ma, Lin Kumazawa, Kenji eng 2017/11/01 J Agric Food Chem. 2017 Nov 22; 65(46):10058-10063. doi: 10.1021/acs.jafc.7b04116. Epub 2017 Nov 9"