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Reactive chelators : improving the performance of tanning metals / J. M. Holmes in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 80, N° 5 (09-10/1996)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 80, N° 5 (09-10/1996) . - p. 133-135 Titre : Reactive chelators : improving the performance of tanning metals Type de document : texte imprimé Auteurs : J. M. Holmes, Auteur Année de publication : 1996 Article en page(s) : p. 133-135 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Research at Stahl, into collagen modification and its effect on metal tanning has shown how simple, organic reagents can bind covalently to collagen under mild conditions, subsquently providing binding sites for tanning metals. Experiments on both hide powder and hide pieces have demonstrated that substance and stability of tannage can be increased using these products. A variety of physical techniques has been employed to monitor these effects on a range of metal tannages. En ligne : https://drive.google.com/file/d/19K0wppmtxuq8eUbzPDqIowc5mHs8PCHj/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8092 [article]

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Isolation and identification of bacteria adversely affecting hide and leather quality / Meral Birbir in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 80, N° 5 (09-10/1996)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 80, N° 5 (09-10/1996) . - p. 147-153 Titre : Isolation and identification of bacteria adversely affecting hide and leather quality Type de document : texte imprimé Auteurs : Meral Birbir, Auteur ; A. Ilgaz, Auteur Année de publication : 1996 Article en page(s) : p. 147-153 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Two hundred and twenty five hide and chrome tanned leather samples were examined at different stages of processing to characterize the populations of organisms inhabiting them. Bacillus subtilis, bacillus cereus, bacillus pumilus, bacillus licheniformis, bacillus megaterium, bacillus sphaericus, micrococcus luteus, staphylococcus aureus, micrococcus rubens, kurthia variabilis, pseudomonas aeruginosa, staphylococcus epidermidis, bacillus brevis, micrococcus luteus, pseudomonas aeruginosa, staphilococcus aureus and staphylococcus epidermidis were positive for gelatin hydrolysis. Fresh and salted hide samples were also evaluated chemically and histologically. Some of the salted hide samples showed histological changes resulting from poor curing techniques and high moisture content. It has been noted that generally bacillus species caused deterioration ofhides. It is concluded that the hide damage is caused by inadequate curing, bacterial action and autolysis. En ligne : https://drive.google.com/file/d/1wBdvyUn7rY8MUlQ9QsFKNBEyIBclyeL7/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8093 [article]

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Pollution abatement and waste management in the croatian tanning industry / S. Selanec in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 80, N° 5 (09-10/1996)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 80, N° 5 (09-10/1996) . - p. 154-157 Titre : Pollution abatement and waste management in the croatian tanning industry Type de document : texte imprimé Auteurs : S. Selanec, Auteur ; Z. Bajza, Auteur Année de publication : 1996 Article en page(s) : p. 154-157 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Industrie -- Aspect de l'environnement Cuirs et peaux -- Industrie -- Croatie Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Factors influencing the quality of environment in the leather industry in Croatia, have been reviewed. At the moment, Coratia has six large factories, four medium and a number of small manufacturers, which have not adequately solved the issue of effluent treatment. Details regarding leather processing and consequent pollution in Croatia and individual tanneries are shown in the report. En ligne : https://drive.google.com/file/d/1aK3gDy4wq-SI-p5Qnunw2PXdObuJBtUK/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8094 [article]

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Changes in the molecular composition of gelatine due to the manufacturing process and animan age, as shown by electrophoresis / C. G. B. Cole in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 80, N° 5 (09-10/1996)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 80, N° 5 (09-10/1996) . - p. 136-141 Titre : Changes in the molecular composition of gelatine due to the manufacturing process and animan age, as shown by electrophoresis Type de document : texte imprimé Auteurs : C. G. B. Cole, Auteur ; J. J. Roberts, Auteur Année de publication : 1996 Article en page(s) : p. 136-141 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Type A gelatine was made from the skin of less than 6-month-old calves by an acid process. Type B gelatine was made from a 10-month-old calf skin as well as from the hides of mature bovines of 58 and 144 months of age, by an alkaline proces. On electrophoretic separation the type 1 calf skin gelatin closely resembled pigskin gelatin with a large number of bands below 100kD while type B calfskin gelatine contained unsuallylarge amounts of intact collagen alpha- and beta- and gamma-chains. From the older animals, the best (first extraction) type B gelatines contained large amounts of intact collagen chains the amounts of which appeared to decrease sowewhat with increasing animal age. Type B gelatines were also observed to contain a peptide with a molecular mass of 82 kD. The quantity of intact collagen chains in type B gelatine decreased markedly at higher extraction temperatures. Gelatine colour was observed to become darker with animal age, however there was no strict relationship between gelatine colour and molecular composition. The implications of these observations on the molecular mechanisms of collagen conversion and gelatine colour are discussed. En ligne : https://drive.google.com/file/d/1sWw9-QhLx_O6xN4px9iMm_9_CmIPMSBq/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8095 [article]

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