Moisture barrier and physical properties of acetylated derivatives with increasing acetylation degree
Four acetostearin products with increasing acetylation degree were synthesized by chemical interesterification followed by fractionation/blending stages. Their physical properties and functional barrier properties were studied and compared to the properties of technical tristearin. Increasing acetylation degree (AD) modified the triacylglycerols crystal habits and probably led to an increase in acyl chain fluidity, which induced, at macroscopic levels, a decrease in solid fat content (SFC), in melting point, in surface and bulk material hydrophobicity, and an increased moisture effective diffusivity. Water vapor permeability (WVP) coefficients of the materials were partially influenced by the AD factor, but also by the development of macroscopic cracks in lipids presenting high SFC. Acetylated stearin up to 47% (acetyl mol/mol of esterified chain) presented the lowest WVP at 20 7C resulting from an adequate balance between hydrophobicity and mechanical properties of the material.
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Subjects: | 000 - Autres thèmes, Q02 - Traitement et conservation des produits alimentaires, Q04 - Composition des produits alimentaires, acétylation, stéarine, huile, http://aims.fao.org/aos/agrovoc/c_33927, http://aims.fao.org/aos/agrovoc/c_7383, http://aims.fao.org/aos/agrovoc/c_5334, |
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dig-cirad-fr-5493052024-01-28T17:04:27Z http://agritrop.cirad.fr/549305/ http://agritrop.cirad.fr/549305/ Moisture barrier and physical properties of acetylated derivatives with increasing acetylation degree. Bourlieu Claire, Ferreira Mariana, Baréa Bruno, Guillard Valérie, Villeneuve Pierre, Guilbert Stéphane, Gontard Nathalie. 2009. European Journal of Lipid Science and Technology, 111 (5) : 489-498.https://doi.org/10.1002/ejlt.200800214 <https://doi.org/10.1002/ejlt.200800214> Moisture barrier and physical properties of acetylated derivatives with increasing acetylation degree Bourlieu, Claire Ferreira, Mariana Baréa, Bruno Guillard, Valérie Villeneuve, Pierre Guilbert, Stéphane Gontard, Nathalie eng 2009 European Journal of Lipid Science and Technology 000 - Autres thèmes Q02 - Traitement et conservation des produits alimentaires Q04 - Composition des produits alimentaires acétylation stéarine huile http://aims.fao.org/aos/agrovoc/c_33927 http://aims.fao.org/aos/agrovoc/c_7383 http://aims.fao.org/aos/agrovoc/c_5334 Four acetostearin products with increasing acetylation degree were synthesized by chemical interesterification followed by fractionation/blending stages. Their physical properties and functional barrier properties were studied and compared to the properties of technical tristearin. Increasing acetylation degree (AD) modified the triacylglycerols crystal habits and probably led to an increase in acyl chain fluidity, which induced, at macroscopic levels, a decrease in solid fat content (SFC), in melting point, in surface and bulk material hydrophobicity, and an increased moisture effective diffusivity. Water vapor permeability (WVP) coefficients of the materials were partially influenced by the AD factor, but also by the development of macroscopic cracks in lipids presenting high SFC. Acetylated stearin up to 47% (acetyl mol/mol of esterified chain) presented the lowest WVP at 20 7C resulting from an adequate balance between hydrophobicity and mechanical properties of the material. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/549305/1/549305.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1002/ejlt.200800214 10.1002/ejlt.200800214 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=204347 info:eu-repo/semantics/altIdentifier/doi/10.1002/ejlt.200800214 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1002/ejlt.200800214 |
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000 - Autres thèmes Q02 - Traitement et conservation des produits alimentaires Q04 - Composition des produits alimentaires acétylation stéarine huile http://aims.fao.org/aos/agrovoc/c_33927 http://aims.fao.org/aos/agrovoc/c_7383 http://aims.fao.org/aos/agrovoc/c_5334 000 - Autres thèmes Q02 - Traitement et conservation des produits alimentaires Q04 - Composition des produits alimentaires acétylation stéarine huile http://aims.fao.org/aos/agrovoc/c_33927 http://aims.fao.org/aos/agrovoc/c_7383 http://aims.fao.org/aos/agrovoc/c_5334 |
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000 - Autres thèmes Q02 - Traitement et conservation des produits alimentaires Q04 - Composition des produits alimentaires acétylation stéarine huile http://aims.fao.org/aos/agrovoc/c_33927 http://aims.fao.org/aos/agrovoc/c_7383 http://aims.fao.org/aos/agrovoc/c_5334 000 - Autres thèmes Q02 - Traitement et conservation des produits alimentaires Q04 - Composition des produits alimentaires acétylation stéarine huile http://aims.fao.org/aos/agrovoc/c_33927 http://aims.fao.org/aos/agrovoc/c_7383 http://aims.fao.org/aos/agrovoc/c_5334 Bourlieu, Claire Ferreira, Mariana Baréa, Bruno Guillard, Valérie Villeneuve, Pierre Guilbert, Stéphane Gontard, Nathalie Moisture barrier and physical properties of acetylated derivatives with increasing acetylation degree |
description |
Four acetostearin products with increasing acetylation degree were synthesized by chemical interesterification followed by fractionation/blending stages. Their physical properties and functional barrier properties were studied and compared to the properties of technical tristearin. Increasing acetylation degree (AD) modified the triacylglycerols crystal habits and probably led to an increase in acyl chain fluidity, which induced, at macroscopic levels, a decrease in solid fat content (SFC), in melting point, in surface and bulk material hydrophobicity, and an increased moisture effective diffusivity. Water vapor permeability (WVP) coefficients of the materials were partially influenced by the AD factor, but also by the development of macroscopic cracks in lipids presenting high SFC. Acetylated stearin up to 47% (acetyl mol/mol of esterified chain) presented the lowest WVP at 20 7C resulting from an adequate balance between hydrophobicity and mechanical properties of the material. |
format |
article |
topic_facet |
000 - Autres thèmes Q02 - Traitement et conservation des produits alimentaires Q04 - Composition des produits alimentaires acétylation stéarine huile http://aims.fao.org/aos/agrovoc/c_33927 http://aims.fao.org/aos/agrovoc/c_7383 http://aims.fao.org/aos/agrovoc/c_5334 |
author |
Bourlieu, Claire Ferreira, Mariana Baréa, Bruno Guillard, Valérie Villeneuve, Pierre Guilbert, Stéphane Gontard, Nathalie |
author_facet |
Bourlieu, Claire Ferreira, Mariana Baréa, Bruno Guillard, Valérie Villeneuve, Pierre Guilbert, Stéphane Gontard, Nathalie |
author_sort |
Bourlieu, Claire |
title |
Moisture barrier and physical properties of acetylated derivatives with increasing acetylation degree |
title_short |
Moisture barrier and physical properties of acetylated derivatives with increasing acetylation degree |
title_full |
Moisture barrier and physical properties of acetylated derivatives with increasing acetylation degree |
title_fullStr |
Moisture barrier and physical properties of acetylated derivatives with increasing acetylation degree |
title_full_unstemmed |
Moisture barrier and physical properties of acetylated derivatives with increasing acetylation degree |
title_sort |
moisture barrier and physical properties of acetylated derivatives with increasing acetylation degree |
url |
http://agritrop.cirad.fr/549305/ http://agritrop.cirad.fr/549305/1/549305.pdf |
work_keys_str_mv |
AT bourlieuclaire moisturebarrierandphysicalpropertiesofacetylatedderivativeswithincreasingacetylationdegree AT ferreiramariana moisturebarrierandphysicalpropertiesofacetylatedderivativeswithincreasingacetylationdegree AT bareabruno moisturebarrierandphysicalpropertiesofacetylatedderivativeswithincreasingacetylationdegree AT guillardvalerie moisturebarrierandphysicalpropertiesofacetylatedderivativeswithincreasingacetylationdegree AT villeneuvepierre moisturebarrierandphysicalpropertiesofacetylatedderivativeswithincreasingacetylationdegree AT guilbertstephane moisturebarrierandphysicalpropertiesofacetylatedderivativeswithincreasingacetylationdegree AT gontardnathalie moisturebarrierandphysicalpropertiesofacetylatedderivativeswithincreasingacetylationdegree |
_version_ |
1792497205746073600 |