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J Agric Food Chem

Title:		Model studies on volatile release from different semisolid fat blends correlated with changes in sensory perception
Author(s):		Shiota M; Isogai T; Iwasawa A; Kotera M;
Address:		"Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., Kawagoe, Saitama, Japan. m-shiota@mtf.biglobe.ne.jp"
Journal Title:		J Agric Food Chem
Year:		2011
Volume:		20110411
Issue:		9
Page Number:		4904 - 4912
DOI:		10.1021/jf104649y
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"The effect of dispersed aqueous droplets in water-in-oil (W/O)-emulsion semisolid fats on aroma release and sensory perception was investigated on margarine models where model aroma substances were added. Aroma release from W/O-emulsion fat blends and bulk fat blends with added monoglycerides combining different fatty acids of various short-chain free fatty acids, methylketones, esters, and lactones were measured using headspace solid phase microextraction-gas chromatography/mass spectrometry (SPME-GC/MS), and their perception profiles were evaluated by sensory analysis. The presence of aqueous phase in a fat blend significantly reduced the headspace concentrations of butanoic acid and hexanoic acid, and also decreased the perceived intensity of total aroma and cheesy aroma. The aroma release of methylketones, esters, and lactones from the W/O-emulsion fat blends increased with increasing carbon chain length of the volatile molecules. The intensity of aroma perception in a W/O-emulsion fat blend depended on the melting point of the fatty acids (oleic, palmitic, stearic, and behenic) of the monoglyceride used as an emulsifier. Thus, aroma release from a W/O-emulsion semisolid fat blend was influenced by interactions between aroma volatiles and the dispersed aqueous droplets and by their viscoelastic properties"
Keywords:		Adult Fats/*chemistry Female Gas Chromatography-Mass Spectrometry Humans Male Middle Aged Odorants/analysis Smell Solid Phase Microextraction *Taste Perception Volatile Organic Compounds/chemistry;
Notes:		"MedlineShiota, Makoto Isogai, Tomoyuki Iwasawa, Ai Kotera, Mariko eng 2011/04/05 J Agric Food Chem. 2011 May 11; 59(9):4904-12. doi: 10.1021/jf104649y. Epub 2011 Apr 11"