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J Food Drug Anal

Title:		Characterization of key aroma-active compounds in lychee (Litchi chinensis Sonn.)
Author(s):		Feng S; Huang M; Crane JH; Wang Y;
Address:		"Citrus Research and Education Center, University of Florida, 700 Experiment Station Rd, Lake Alfred, FL 33850, USA. Department of Food Science and Human Nutrition, University of Florida, 572 Newell Dr., Gainesville, FL 32611, USA. Tropical Research and Education Center, University of Florida, 18905 SW 280 St., Homestead, FL 33031, USA"
Journal Title:		J Food Drug Anal
Year:		2018
Volume:		20170818
Issue:		2
Page Number:		497 - 503
DOI:		10.1016/j.jfda.2017.07.013
ISSN/ISBN:		2224-6614 (Electronic) 1021-9498 (Print)
Abstract:		"Volatile compounds in 'Sweetheart' lychee were examined using gas chromatography-olfactometry/mass spectrometry (GC-O/MS). Solvent assisted flavor evaporation (SAFE) technique was used to identify the aroma-active compounds in lychee. Further characterization of the most important odorants in 'Sweetheart' lychee was achieved using aroma extract dilution analysis (AEDA). Thirty-one key aroma-active odorants were identified in the flavor dilution (FD) factor range of 2-1024. Methional (cooked potato) and geraniol (sweet, floral) exhibited the highest FD factors of 1024 and 512, respectively, these were followed by furaneol (sweet, caramel), nerol (floral, sweet), dimethyl trisulfide (DMTS) (preserved vegetable, sulfury), linalool (floral), (E,Z)-2,6 nonadienal (cucumber) and nerolidol (metalic, sesame oil). Furthermore, the flavor profile of 'Sweetheart' lychee was described by sensory analysis. Floral, tropical fruit, peach/apricot and honey were scored with relatively high scores for each aroma attribute. The sweetness rating was the highest score among all the attributes"
Keywords:		Adult Female Flavoring Agents/*chemistry Fruit/chemistry Gas Chromatography-Mass Spectrometry Humans Litchi/*chemistry Male Middle Aged Odorants/analysis Olfactometry Taste Volatile Organic Compounds/chemistry Young Adult Aeda Aroma-active compounds Gc-ms;
Notes:		"MedlineFeng, Shi Huang, Mingyang Crane, Jonathan Henry Wang, Yu eng China (Republic : 1949- ) 2018/03/24 J Food Drug Anal. 2018 Apr; 26(2):497-503. doi: 10.1016/j.jfda.2017.07.013. Epub 2017 Aug 18"