The effect of solution surface tension on aroma compound release from aqueous xanthan solutions
Identifieur interne : 001085 ( Main/Exploration ); précédent : 001084; suivant : 001086The effect of solution surface tension on aroma compound release from aqueous xanthan solutions
Auteurs : Sébastien Secouard [France] ; Catherine Malhiac [France] ; Michel Grisel [France]Source :
- Flavour and Fragrance Journal [ 0882-5734 ] ; 2006-01.
English descriptors
Abstract
This study aimed to elucidate the mechanisms governing the release of limonene from model matrices in aqueous xanthan solutions. The aroma compound release behaviour from the matrices has been linked with both the rheological and the surface tension properties of the solutions. Considering the limonene release as a function of the polymer concentration regime, a significant rise in limonene retention is observed above the critical overlap concentration, C*, of the biopolymer. Increasing the amount of xanthan involves a marked decrease in limonene release until the concentrated regime is reached (above C**), at which the limonene release is constant whatever the polymer content. In parallel, solution surface tension properties allow us to state the establishment of intra‐ and intermolecular non‐polar interactions of xanthan molecules above C*. As such molecular interaction may explain the change in limonene behaviour, these preliminary results contribute to a better understanding of the phenomena governing the retention/release of the volatile from such xanthan‐containing media. Copyright © 2006 John Wiley & Sons, Ltd.
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DOI: 10.1002/ffj.1695
Affiliations:
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The aroma compound release behaviour from the matrices has been linked with both the rheological and the surface tension properties of the solutions. Considering the limonene release as a function of the polymer concentration regime, a significant rise in limonene retention is observed above the critical overlap concentration, C*, of the biopolymer. Increasing the amount of xanthan involves a marked decrease in limonene release until the concentrated regime is reached (above C**), at which the limonene release is constant whatever the polymer content. In parallel, solution surface tension properties allow us to state the establishment of intra‐ and intermolecular non‐polar interactions of xanthan molecules above C*. As such molecular interaction may explain the change in limonene behaviour, these preliminary results contribute to a better understanding of the phenomena governing the retention/release of the volatile from such xanthan‐containing media. Copyright © 2006 John Wiley & Sons, Ltd.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Haute-Normandie</li><li>Région Normandie</li></region><settlement><li>Le Havre</li></settlement><orgName><li>Université du Havre</li></orgName></list><tree><country name="France"><region name="Région Normandie"><name sortKey="Secouard, Sebastien" sort="Secouard, Sebastien" uniqKey="Secouard S" first="Sébastien" last="Secouard">Sébastien Secouard</name></region><name sortKey="Grisel, Michel" sort="Grisel, Michel" uniqKey="Grisel M" first="Michel" last="Grisel">Michel Grisel</name><name sortKey="Malhiac, Catherine" sort="Malhiac, Catherine" uniqKey="Malhiac C" first="Catherine" last="Malhiac">Catherine Malhiac</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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