[article]
| Titre : |
Observation of skins, hides and leathers with scanning electron microscope, IV. Changes in pig skins during bating process |
| Type de document : |
texte imprimé |
| Auteurs : |
Kohkichi Uehara, Auteur ; Harukazu Toyoda, Auteur ; Yasumasa Chonan, Auteur ; Hiroshi Okamura, Auteur |
| Année de publication : |
1987 |
| Article en page(s) : |
p. 33-40 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The changes of the grain structure in pig skins during the bating process were observed with the scanning electron microscope. In addition, the amount of hydroxyproline released from pig skins during the bating process was determined and some physical properties of the bated skin pieces were measured.
The humps of dermal papillae in the delimed skins were slight and the surface of papillae was flat. When the delimed skin was incubated with buffer solutions at pH 7.5 for 4 hr, the papillae swelled and the shapes of the surface were spherical, depresed or wrinkled. At a magnification of below 1,000 times, a new network structure was frequently observed in the surface of papillae of the skin pieces treated with pancreatin of Bacillus subtilis (B. sub) protease. This network was composed of the bundled grain fibrils.
The grain fibrils in the delimed skin coalesced with each other and were surrounded with some amorphous substances. When treated with pancreatin, the grain fibrils were clearly exposed and separated from each other as shown by the micrographs only at high magnification.
The amount of hydroxyproline released from the skin pieces during the enzyme treatment for 4 hr was less than 1%. The values of surface elongation and strain measured with a Tensometer decreased in the pieces treated with pancreatin or sub. protease. |
| En ligne : |
https://drive.google.com/file/d/1hLnma872R1W2Xo1wBrRU-eaWWik1yXVB/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8962 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXII (Année 1987) . - p. 33-40
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Observation of skins, hides and leathers with scanning electron microscope, IV. Changes in pig skins during bating process in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXII (Année 1987)
