Journal
FOOD CHEMISTRY
Volume 96, Issue 3, Pages 461-470Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2005.03.001
Keywords
starch; DSC; X-ray diffraction; aroma compound; exponential dilution
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Interactions between aroma compounds and starch matrices may increase the retention of aroma compounds. In particular, the linear amylose of starch, is able to form inclusion complexes with a wide variety of flavour compounds. The retention of four C6 aroma compounds (hexanol, hexanal, trans-2-hexenal and 2-hexanone) in model starch dispersions was measured using the exponential dilution method. The complexing behaviour of these aroma compounds with amylose and two starch dispersions was studied by differential scanning calorimetry (DSC) and X-ray diffraction, to determine the relative importance of this factor. The ability of hexanol and hexanal to induce a specific interaction with amylose is showed by both methods. This can explain their high retention in model starch dispersions. In contrast, the inability of 2-hexanone to interact with amylose explained its low level of retention. (c) 2005 Elsevier Ltd. All rights reserved.
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