LeHavreV1, France, Analysis, bibRecord, 000304

Stretching properties of xanthan and hydroxypropyl guar in aqueous solutions and in cosmetic emulsions.

Identifieur interne : 000304 ( France/Analysis ); précédent : 000303; suivant : 000305

Stretching properties of xanthan and hydroxypropyl guar in aqueous solutions and in cosmetic emulsions.

Auteurs : Majid Jamshidian [France] ; Géraldine Savary [France] ; Michel Grisel [France] ; Céline Picard [France]

Source :

Carbohydrate polymers [ 1879-1344 ] ; 2014.

RBID : pubmed:25129752

English descriptors

KwdEn :
- Cosmetics, Emulsions (chemistry), Polysaccharides (chemistry), Polysaccharides, Bacterial (chemistry), Rheology (methods), Solutions, Water.
MESH :
- chemical , chemistry : Emulsions, Polysaccharides, Polysaccharides, Bacterial.
- chemical : Cosmetics, Solutions, Water.
- methods : Rheology.

Abstract

Filament stretchability of xanthan gum (XG) and hydroxypropyl guar (HPG) was investigated in aqueous solutions (0.125, 0.25, 0.5, 1, 1.2 and 1.5% w/w) and in O/W emulsions using a texture analyzer. Additionally, rheological characterizations were carried out on the systems and shear and oscillation parameters were used to interpret stretching properties. XG solutions exhibited a solid-like behavior with rheological parameters much higher than for HPG one whatever the concentration. Filament stretching values of XG solutions were superior to HPG for concentration below 1% w/w and then became comparable for higher concentrations. No meaningful relationship was found between rheological and stretching values. Synergy was observed for all XG/HPG mixtures at 0.125, 0.25 and 0.5% influencing both the rheological and the filament stretching values. The 25/75 XG/HPG ratio showed the maximum synergistic effect at all concentrations while the filament stretchability was enhanced in a wider range of ratios. XG and HPG did not present the same behavior in emulsions. No clear synergistic effect was observed and XG markedly influenced the emulsion filament stretching.

DOI: 10.1016/j.carbpol.2014.05.094
PubMed: 25129752

Affiliations:

Links to Exploration step

pubmed:25129752

Le document en format XML

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<front><div type="abstract" xml:lang="en">Filament stretchability of xanthan gum (XG) and hydroxypropyl guar (HPG) was investigated in aqueous solutions (0.125, 0.25, 0.5, 1, 1.2 and 1.5% w/w) and in O/W emulsions using a texture analyzer. Additionally, rheological characterizations were carried out on the systems and shear and oscillation parameters were used to interpret stretching properties. XG solutions exhibited a solid-like behavior with rheological parameters much higher than for HPG one whatever the concentration. Filament stretching values of XG solutions were superior to HPG for concentration below 1% w/w and then became comparable for higher concentrations. No meaningful relationship was found between rheological and stretching values. Synergy was observed for all XG/HPG mixtures at 0.125, 0.25 and 0.5% influencing both the rheological and the filament stretching values. The 25/75 XG/HPG ratio showed the maximum synergistic effect at all concentrations while the filament stretchability was enhanced in a wider range of ratios. XG and HPG did not present the same behavior in emulsions. No clear synergistic effect was observed and XG markedly influenced the emulsion filament stretching.</div>
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Stretching properties of xanthan and hydroxypropyl guar in aqueous solutions and in cosmetic emulsions.

Stretching properties of xanthan and hydroxypropyl guar in aqueous solutions and in cosmetic emulsions.

Source :

English descriptors

Abstract

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Links to Exploration step

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