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In-use tolerability of two new syndet bars with sodium cocoyl isethionate, disodium lauryl sulfosuccinate and wheat starch as major ingredients in differing relations: results of a cross-over trial / H. C. Korting in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 14, N° 6 (12/1992)
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Titre : In-use tolerability of two new syndet bars with sodium cocoyl isethionate, disodium lauryl sulfosuccinate and wheat starch as major ingredients in differing relations: results of a cross-over trial Type de document : texte imprimé Auteurs : H. C. Korting, Auteur ; A. Lukacs, Auteur ; D. Hamm, Auteur ; Klaus Stanzl, Auteur ; O. Braun-Falco, Auteur Année de publication : 1992 Article en page(s) : p. 277–282 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Propriétés en cours d'utilisation' 'Barres de syndet' Tolérabilité 'Cocoyl iséthionate sodium' 'Disodium laurylsulfosuccinate' 'Amidon blé' Index. décimale : 668.5 Parfums et cosmétiques Résumé : In a cross-over trial two different new syndet bars differing in their content of sodium cocoyl isethionate, disodium lauryl sulfosuccinate and wheat starch as major components were compared in the cleansing of hand skin of 72 healthy volunteers. The preparation designated ‘T’containing a higher amount of wheat starch turned out to be less irritant as judged from the parameters itching and erythema (p < 0.05, Wilcoxon's test for matched pairs). The present trial design looks appropriate to differentiate the irritancy potential of two chemically similar syndet bar preparations. DOI : 10.1111/j.1467-2494.1992.tb00060.x En ligne : https://onlinelibrary.wiley.com/doi/10.1111/j.1467-2494.1992.tb00060.x Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26587
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 14, N° 6 (12/1992) . - p. 277–282[article]Mixed micelles containing sodium laurate : effect of chain length, polar head group, and added salt / Rie Kakehashi in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 6 (11-12/2012)
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Titre : Mixed micelles containing sodium laurate : effect of chain length, polar head group, and added salt Type de document : texte imprimé Auteurs : Rie Kakehashi, Auteur ; Motohiro Shizuma, Auteur ; Shingo Yamamura, Auteur Année de publication : 2012 Article en page(s) : p. 488-493 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Surfactants Tags : 'Laurate sodium' 'Paramètre interaction' 'Système surfactant mixte' Alkylglycoside 'Oxyde alkyldiméthylamine' Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : We studied the mixing behavior of binary mixtures of alkylglycosides (CnGly); i.e. n-Octyl ?-D-glucopyranoside, n-Decyl ?-D-glucopyranoside and n-Decyl ?-D-maltoside in combination with sodium laurate (NaL), and N,N-dimethyldodecylamine oxide in combination with NaL. The critical micelle concentration (CMC) data were obtained as functions of the composition based on equilibrium surface tension measurements. The cmc values with and without the addition of salt systems were then analyzed according to the regular solution model developed by Rubingh for mixed micelles. For the added salt systems, we applied Maeda’s formulation for ionic/nonionic mixed micelles. For NaL/CnGly mixed systems, an increase in the hydrophilicity of the polar head group of CnGly resulted in a strong interaction between NaL and CnGly. In addition, introducing ionic species to the added salt systems stabilized the nonionic micelles. Note de contenu : - NaL/CnGly and NaL/C12 DMAO mixtures in 5 mM NaOH
- NaL/CnGly and NaL/C12 DMAO mixtures with O.1 M NaCl in 5mM NaOH
- Dynamic surface tension behavior of NaL Mixture in 5mM NaOHDOI : 10.3139/113.110220 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16536
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 49, N° 6 (11-12/2012) . - p. 488-493[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14334 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterization of pillared derivatives from d-layered sodium disilicate and their tribological properties in liquid paraffin / Yilei Fu in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 1/2010 (01-02/2011)
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Titre : Preparation and characterization of pillared derivatives from d-layered sodium disilicate and their tribological properties in liquid paraffin Type de document : texte imprimé Auteurs : Yilei Fu, Auteur ; Y. Wang, Auteur ; H. Xu, Auteur ; J.-P. Li, Auteur ; J.-X. Dong, Auteur Année de publication : 2011 Article en page(s) : p.67-72 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Disilicate de sodium' Caractérisation 'Réduction des propriétés friction' 'Ammonium diméthyle dioctadécyle' Portance 'Chlorure d'ammonium bisoctyle' Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : The pillared derivatives from δ-layered sodium disilicate were investigated by intercalation of bisoctyl dimethyl ammonium chloride and dioctadecyl dimethyl ammonium chloride. The influence of various parameters such as water content, pH of the mixture, and time were examined. The resultant samples were characterized by X-ray powder diffraction, Fourier transform infrared, and thermal gravimetric observation. The experimental results showed that δ-layered sodium disilicate was first transformed to kanemite (NaHSi2O4(OH)2 · 2H2O), and subsequently kanemite was pillared with bisoctyl dimethyl ammonium chloride or dioctadecyl dimethyl ammonium chloride. The tribological properties of typical samples then were investigated by point contact test. The results show that the pillared derivatives have good load-carrying capacity and friction-reducing property. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10675
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 48, N° 1/2010 (01-02/2011) . - p.67-72[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012778 - Périodique Bibliothèque principale Documentaires Disponible Effect of oleate/bacteria interactions on dolomite separation from phosphate ore / A. M. Elmahdy in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 46, N° 6/2009 (11-12/2009)
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Titre : Effect of oleate/bacteria interactions on dolomite separation from phosphate ore Type de document : texte imprimé Auteurs : A. M. Elmahdy, Auteur ; Ayman A. El-Midany, Auteur ; Nagui A. Abdel-Khalek, Auteur ; S. E. El-Mofty, Auteur Année de publication : 2009 Article en page(s) : p. 340-345 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Surfactants Tags : Dolomite Apatite 'Oléate de sodium' Bactéries Bio-réduction Bio-flottaison 'Minéraux carbonatés' Phosphate Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : In conventional flotation, the sodium oleate is used as a collector for phosphate separation from silica. However, most of the phosphate deposits contain carbonate impurities, which deteriorate the flotation selectivity using sodium oleate. In this paper, the amenability of the carbonate separation from a sedimentary phosphate ore through bio-flotation process, as a one of various efforts to solve the carbonate problem, was tested. The interaction of two types of bacteria (Corynebacterium-diphtheriae-intermedius, CDI, and Pseudomonas aeruginosa, PA) with sodium oleate was investigated. The interaction between collector and bacteria was determined by Fourier Transform Infra-Red (FTIR) measurements, zeta potential before and after adsorption of bacteria, as well as frothing power. The results showed that bio-flotation could produce a phosphate concentrate of 0.85 % MgO and 30.2 % P2O5 with a recovery of 92 % at pH 5.5, 1.25 kg/t sodium oleate, ≥ 1 × 108 cells of CDI bacteria. The specification of such concentrate could not be obtained by the conventional flotation experiments, in absence of bacteria, under similar conditions. This means that bacteria could play a significant role as a surface modifier due to its selective adsorption onto the mineral surface as well as its interaction with collector. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6807
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 46, N° 6/2009 (11-12/2009) . - p. 340-345[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011757 - Périodique Bibliothèque principale Documentaires Disponible Enzymatic hydrolysis of skin shavings for preparation of collagen hydrolysates with specified molecular weight distribution / Chi Yuanlong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 1 (01-02/2012)
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Titre : Enzymatic hydrolysis of skin shavings for preparation of collagen hydrolysates with specified molecular weight distribution Type de document : texte imprimé Auteurs : Chi Yuanlong, Auteur ; Cui Min, Auteur ; Cui Xiaoju, Auteur ; Wenhua Zhang, Auteur ; Xuepin Liao, Auteur ; Bi Shi, Auteur Année de publication : 2012 Article en page(s) : p. 16-20 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Collagène
Cuirs et peaux -- Déchets
Hydrolysats de protéines
Hydrolyse enzymatiqueTags : 'Copeaux tannerie' 'Protéase 1398' 2709' Alcalase Papaïne Pepsine 537' Trypsine 'Titration formaldehyde' Electrophorèse 'Ges dodécyl sulfate-polyacrylamide sodium' 'Ultrafiltration centrifuge' Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Collagen hydrolysates were extracted from tannery skin shavings through enzymatic hydrolysis by using protease 1398, protease 2709, alcalase, papain, pepsin, protease 537 and trypsin, respectively. The hydrolytic degree and molecular weight distribution (MWD) of the hydrolysages were evaluated by the formaldehyde titration method, sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE), tricine-SDS-PAGE and centrifugal ultrafiltration. It was found that the MWD of the as prepared collagen hydrolysates has a close correlation with the hydrolytic degree, and greatly depends on the enzyme employed. The low molecular weight (MW) collagen hydrolysates, with relatively high hydrolytic degree, were obtained by enzymatic hydrolysis using protease 1398, protease 2709, papain and alcalase. More than 60% (mass ratio) of the fractions in these four hydrolysates were in the molecular weight range of <10kDa. The use of protease 537 produced medium-MW collagen hydrolysages where 40% of the fractionswere of 10-30kDa. The high-MW collagen hydrolysages that include about 66% fractions with molecular weights higher than 20kDa were obtained by using pepsin, accompanied by the lowest hydrolytic degree. This research provides a potential approache for molecular weight and molecular weight distribution control collagen hydrolysates by enzymatic hydrolysis ot tannery skin wastes. Note de contenu : - MATERIALS AND METHODS : Materials - Methods - Determination of hydrolytic degree of collagen - SDS-PAGE and tricine-SDS-PAGE determination - Centrifugal ultrafiltration analysis
- RESULTS AND DISCUSSION : Hydrolytic degree analysis
- SDS-PAGE and tricine-SDS-PAGE patterns - Centrifugal ultrafiltration analysis on MWDEn ligne : https://drive.google.com/file/d/1NEe4OCKiTxbrMEX3emn2sQFAzagsFJQc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13549
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 1 (01-02/2012) . - p. 16-20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13659 - Périodique Bibliothèque principale Documentaires Disponible Micellar catalysis on pentavalent vanadium ion oxidation of ethanol in aqueous acide media / Sumanta K. Ghosh in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 4 (07-08/2012)
PermalinkA novel system of removing décorin, a minor proteoglycan of bovine hides, to improve the quality of leather / Mila Aldema-Ramos in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CV, N° 7 (07/2010)
PermalinkKinetics and mechanism of nucleophilic xubstitution in SnR2Cl2 × 2DMSO by chloride ions in micellar microenvironment / Abdul Moheman in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 4 (07-08/2012)
PermalinkMolecular weight (M n) and functionality effects on CUP formation and stability / Michael R. Van De Mark in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 2 (03/2014)
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