A differential thermal analyzer for measuring the relative amount of undenatured collagen in large representative samples of comminuted hide / Henri J. Scherr in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXVII (Année 1972)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXVII (Année 1972) . - p. 360-368 Titre : A differential thermal analyzer for measuring the relative amount of undenatured collagen in large representative samples of comminuted hide Type de document : texte imprimé Auteurs : Henri J. Scherr, Auteur ; Paul Magidman, Auteur Année de publication : 1972 Article en page(s) : p. 360-368 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse thermique Chimie analytique Cuirs et peaux -- Teneur en collagène Cuirs et peaux de bovins Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A differential thermal analyzer was developed which is capable of measuring the relative content of undenatured collagen in a comminuted cattle hide. The technique is based on the endothermic phase change which takes place when collagen is heated in the presence of excess water. The analyzer was designed to study large (75 g.) representative samples of comminuted hide. It was evaluated by testing tailor-made samples containing known percentages of heat-denatured hide collagen. The data indicate that the precision of the measurements was ten percent or better. Note de contenu : - Operation of the DTA apparatus - Evaluation of the recorded data - Experimental check of the apparatus - Table 1 : Peak height as a function of percent control comminuted hide - Table 2 : Statistical analysis of data En ligne : https://drive.google.com/file/d/1k9mV6ZK5HlO3rNNPZPtknxMjdk25N_uT/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41551 [article]

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