Model studies on volatile release from different semisolid fat blends correlated with changes in sensory perception.

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.

[1]  A. Marangoni,et al.  Modeling the rheological properties and structure of colloidal fat crystal networks , 2007 .

[2]  D. Rousseau,et al.  Stabilization of water-in-oil emulsions with continuous phase crystals , 2005 .

[3]  John Patterson,et al.  Solid phase microextraction (SPME) combined with gas-chromatography and olfactometry-mass spectrometry for characterization of cheese aroma compounds , 2004 .

[4]  D. D. Roberts,et al.  Experimental and modeling studies showing the effect of lipid type and level on flavor release from milk-based liquid emulsions. , 2003, Journal of agricultural and food chemistry.

[5]  R. Hartel,et al.  Effect of processing conditions on physical properties of a milk fat model system: Rheology , 2000 .

[6]  F. Sauvageot,et al.  Flavor release from salad dressings: sensory and physicochemical approaches in relation with the structure. , 2000, Journal of agricultural and food chemistry.

[7]  R. Linforth,et al.  Altering the fat content affects flavor release in a model yogurt system. , 1999, Journal of agricultural and food chemistry.

[8]  and Abraham Aserin,et al.  Stabilization of water-in-oil emulsions by submicrocrystalline α-form fat particles , 1998 .

[9]  K. Roos.  How lipids influence food flavor : The chemistry of flavor interactions , 1997 .

[10]  A. Taylor,et al.  Volatile flavor release from foods during eating. , 1996, Critical reviews in food science and nutrition.

[11]  N. Fischer,et al.  Gas Chromatography—Olfactometry as a Tool for Measuring Flavor—Food Ingredient Interactions in Model Systems , 1996 .

[12]  J. Mojet,et al.  THE USE OF TIME-INTENSITY ANALYSIS FOR THE DEVELOPMENT OF FAT-FREE FOODS , 1996 .

[13]  A. Voilley,et al.  Effect of Interface in Model Food Emulsions on the Volatility of Aroma Compounds , 1996 .

[14]  S. Ruth,et al.  Volatile compounds of rehydrated French beans, bell peppers and leeks. Part 1. Flavour release in the mouth and in three mouth model systems , 1995 .

[15]  D. Mela,et al.  Perception of Taste and Viscosity of Oil-in-Water and Water-in-Oil Emulsions , 1994 .

[16]  L. Hatchwell.  Overcoming flavor challenges in low-fat frozen desserts , 1994 .

[17]  H. Rohm,et al.  RHEOLOGICAL BEHAVIOUR OF BUTTER AT SMALL DEFORMATIONS , 1993 .

[18]  B. Bergenståhl,et al.  The influence of food emulsifiers on fat and sugar dispersions in oils. II. Rheology, colloidal forces , 1992 .

[19]  W. Lee,et al.  Time-intensity: the temporal aspects of sensory perception , 1986 .

[20]  William E. Lee.  A Suggested Instrumental Technique for Studying Dynamic Flavor Release from Food Products , 1986 .