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Measurement of elastin content in skin tissue and process liquors / E. K. Lowe in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 84, N° 5 (09-10/2000)
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Titre : Measurement of elastin content in skin tissue and process liquors Type de document : texte imprimé Auteurs : E. K. Lowe, Auteur ; Sue M. Cooper, Auteur ; A. Passman, Auteur Année de publication : 2000 Article en page(s) : p. 227-230 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chromatographie en phase liquide à hautes performances
ConfitageLe confitage est une action biochimique effectuée au moyen de produits enzymatiques, qui a pour but de dégrader les fibres élastiques, contribuant ainsi à augmenter la souplesse du cuir. En outre, les enzymes complètent la dégradation des résidus épidermiques, donnant ainsi une fleur plus propre et plus lisse.
Cuirs et peaux -- Analyse
Cuirs et peaux de bovins
Cuirs et peaux de moutons
Eaux usées -- Analyse
ElastineIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : A rapid HPLC method has been developed for measuring elastin in skin tissue and bating process liquors. Desmosine and iso-desmosine from the hydrolysed samples were enriched on a cellulose mini-column before being separated by ion pair reverse phase chromatography on a C, column using 0.1 M phosphate buffer-acetonitrile (3: 1) containing 20mM sodium dodecyl sulphate (final pH 4.5) followed by UV detection at 270 nm. The method was successfully applied both to the measurement of elastin content in ovine and bovine skin tissue and to the measurement of elastin content in bating process liquors. Measurements of elastin content of ovine and bovine skin have shown that elastin levels increase with age and ovine skins have higher levels than bovine skins. Bate liquor studies have shown that there is an initial delay in elastin release during bating, followed by release increasing on a linear basis. Note de contenu : - Materials
- Animal studies
- Bate liquor studyEn ligne : https://drive.google.com/file/d/1hkNVPUdhlB6846LfRDB_5gbxDCJTSpeL/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40922
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 84, N° 5 (09-10/2000) . - p. 227-230[article]Porosity measurement as a means of determining the degree of determining the degree of processing of lamb pelt / T. F. Allsop in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 87, N° 2 (03-04/2003)
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Titre : Porosity measurement as a means of determining the degree of determining the degree of processing of lamb pelt Type de document : texte imprimé Auteurs : T. F. Allsop, Auteur ; A. Passman, Auteur Année de publication : 2003 Article en page(s) : p. 49-54 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux d'agneaux
Mesure
PorositéIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Removal of non-collagenous skin substances during the early stages of lambskin processing can be monitored by measuring the increasing porosity of the pelts. An experimental technique has been developed to measure skin porosity as a function of the maximum pressure required to drive air through the pelt from the flesh to the grain surface using a simple apparatus. Readings should be taken at the OSP of skins directly from processing. The technique can be used to monitor the progress of enzyme processing or the effects of different levels of application of enzyme treatments. Note de contenu : - MATERIALS AND METHODS :
- Apparatus and technique for measuring skin porosity
- Intrinsic variability in skin porosity
- Processing effects on skin porosity
- RESULTS :
- Measurement conditions
- Within and between skin variability in porosity
- Effect of process stage on porosity
- Effect of duration of bating on porosity
- Effect of concentration of bate on porosity
- Table 1 : Variation in porosity pressure at various locations on lambskins
- Table 2 : The effect of processing stage on the porosity of lamb peltsEn ligne : https://drive.google.com/file/d/1wWwqSEwmFBIOH9VZW8En1FoK7LPe8Kn3/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39799
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 87, N° 2 (03-04/2003) . - p. 49-54[article]The effect of infection with dermatophilus congolensis on lamb and sheep pelts / Sue M. Cooper in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 77, N° 3 (05-06/1993)
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Titre : The effect of infection with dermatophilus congolensis on lamb and sheep pelts Type de document : texte imprimé Auteurs : Sue M. Cooper, Auteur ; A. Passman, Auteur Année de publication : 1993 Article en page(s) : p. 75-77 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Défauts
Cuirs et peaux de chèvres
Cuirs et peaux de moutons
Dermatoses
Peau -- Maladies chez les animauxIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : This work has shown that infection of the live anmial with the bacterium dermatophilus congolensis causes the pelt defect known as whitespot which is relatively common in New Zealand pelts. While either drying or antibiotic treatment were effective inhealing the clinical infections, the pelt defect persisted for at least six weeks after treatment in a number of cases. En ligne : https://drive.google.com/file/d/1k0lAtOZvn4y4Sy0k-0K1trARX0-LXbwe/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8498
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 77, N° 3 (05-06/1993) . - p. 75-77[article]Réservation
Réserver ce documentThe effect of lamb treatments on whitespot prevalence in dyed crust leather / Sue M. Cooper in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 76, N° 2 (03-04/1992)
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Titre : The effect of lamb treatments on whitespot prevalence in dyed crust leather Type de document : texte imprimé Auteurs : Sue M. Cooper, Auteur ; A. Passman, Auteur Année de publication : 1992 Article en page(s) : p. 47-50 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A trial was done on lambs which tested the effect of six topical treatments (a diazinon solution, the excipient of this solution, a high-cis cypermethrin pouron, two disinfectants, and a zinc sulphate solution) and shearing on the prevalence and severity of the whitespot defect on dyed crust leather produced from of whitespot. Zinc sulphate had no significant effect. All the treatments except zinc sulphate and the excipient also appeared to increase the severity of the whitespot. The trials also demonstrated that the efficiency of whitespot detection in pickled pelts is low. En ligne : https://drive.google.com/file/d/1XvdwAQQsJRG6VZcqjjlQVpov6hHmOTTI/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8634
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 76, N° 2 (03-04/1992) . - p. 47-50[article]Réservation
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