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J Food Drug Anal

Title:		Extended aroma extract dilution analysis profile of Shiikuwasha (Citrus depressa Hayata) pulp essential oil
Author(s):		Asikin Y; Kawahira S; Goki M; Hirose N; Kyoda S; Wada K;
Address:		"Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan. Regional Agricultural System Section, Okinawa Prefectural Agricultural Research Center, 820 Makabe, Itoman, Okinawa 901-0336, Japan. Agricultural Production Corporation, Katsuyama Shiikuwasa Ltd., Katsuyama, Nago, Okinawa 905-0002, Japan"
Journal Title:		J Food Drug Anal
Year:		2018
Volume:		20170424
Issue:		1
Page Number:		268 - 276
DOI:		10.1016/j.jfda.2017.04.002
ISSN/ISBN:		2224-6614 (Electronic) 1021-9498 (Print)
Abstract:		"Shiikuwasha pulp is an important raw material for producing citrus essential oils. The volatile aroma composition of pulp essential oil was evaluated using gas chromatography (GC) methods, and its aroma profile was assessed using GC-olfactometry with an extended aroma extract dilution analysis (AEDA) technique in regard to alterations of odor strength and sensorial perception throughout serial dilution steps. The essential oil comprised a mixture of 55 aroma compounds, including monoterpene hydrocarbon, sesquiterpene hydrocarbon, alcohol, aldehyde, ester, and oxide compounds. The predominant compounds were limonene [57.36% (4462.80 mg/100 g of pulp)] and gamma-terpinene [25.14% (1956.21 mg/100 g of pulp)]. However, linalool was identified as one of the key aroma components providing the highest flavor dilution factor in AEDA, whilst three sesquiterpene hydrocarbons (delta-elemene, germacrene B, and bicyclosesquiphellandrene) and two esters (heptyl acetate and decyl acetate) had superior relative flavor activities. The extended AEDA profile identified variations in assessed odor perceptions, intensity, and duration of aroma components over dilution, whereas the 12 most odor-active compounds showed comparable odor strengths"
Keywords:		"Citrus/*chemistry Fruit/chemistry Gas Chromatography-Mass Spectrometry Humans Odorants/analysis Oils, Volatile/*chemistry Plant Extracts/*chemistry Volatile Organic Compounds/*chemistry Aroma profile Extended aroma extract dilution analysis Gas chromatogr;"
Notes:		"MedlineAsikin, Yonathan Kawahira, Saki Goki, Maeda Hirose, Naoto Kyoda, Shogo Wada, Koji eng Research Support, Non-U.S. Gov't China (Republic : 1949- ) 2018/02/02 J Food Drug Anal. 2018 Jan; 26(1):268-276. doi: 10.1016/j.jfda.2017.04.002. Epub 2017 Apr 24"