Document Detail


Model Studies on Volatile Release from Different Semi Solid Fat Blends Correlated with Changes in Sensory Perception.
MedLine Citation:
PMID:  21456616     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The effect of dispersed aqueous droplets in water-in-oil (W/O)-emulsion semi solid 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 micro extraction-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 semi solid fat blend was influenced by interactions between aroma volatiles and the dispersed aqueous droplets and by their viscoelastic properties.
Authors:
Makoto Shiota; Tomoyuki Isogai; Ai Iwasawa; Mariko Kotera
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-3
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-4-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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