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Ajouter le résultat dans votre panier Affiner la rechercheCosts-effective method for the production of depilation / S. Malathi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVI, N° 1 (02/1991)
Titre : Costs-effective method for the production of depilation : A cost-effective method for the production of alkaline protease by an aspergillus flavus isolate and its application for the depilation of goat skins Type de document : texte imprimé Auteurs : S. Malathi, Auteur ; R. Chakraborty, Auteur ; K. Parthasarathi, Auteur ; B. Ramanaiah, Auteur Année de publication : 1991 Article en page(s) : p. 33-41 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Solid-substrate fermentation(SSF) of an Aspergillus flavus isolate has been developed for the production of an alkaline protease.Since SSF is known to have distinct economic advantages over conventional methods, it is hoped that this alkaline protease will be available at a commercially attractive price.A study of the properties of the enzyme indicate that it is active over a pH range of 6.5 to 10.5, with a temperature optimum at 45°C.It has high caseinolytic activity and no activity against collagen.Evaluation of this enzyme as a depilating agent for goat skins indicate that its dehairing capacity is satisfactory.Physical testing of the finished leathers of both experimental and control groups, indicates that the enzymically dehaired skins had better strength properties when compared to the controls.Miscroscopic evaluation of the pelts showed that enzymic dehairing compared favorably with the lime-and-sulfide method. En ligne : https://drive.google.com/file/d/1RIYYmyBjJ3XMXnTQPXu0Kvfq6A2DW9mM/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8585
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVI, N° 1 (02/1991) . - p. 33-41[article]Réservation
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Titre : Dehairing enzyme by solid state fermentation Type de document : texte imprimé Auteurs : H. Purushotham, Auteur ; S. Malathi, Auteur ; P. V. Rao, Auteur ; C. L. Rai, Auteur ; M. M. Immanuel, Auteur ; K. V. Raghavan Année de publication : 1996 Article en page(s) : p. 52-56 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The conventional process of unhairing animal skins/hides by the lime-sulphide process generates enormous problemns in tannery effluent treatment. It has been established that enzymatic unhairing is an environmentally friendly alternative to the conventional process. The enzyme, an alkaline protease (clarizyme) is produced by aspergillus flavus isolate using solid substrate fermentation (SSF). Since SSF has distinct economic advantages over conventional methods, it is hoped that this alkaline protease will be available at a commercially attractive price. Evolution of this enzyme as a depilating agent for goat leather establishes that the enzymatically dehaired skins have better strength compared to the controls. This paper highlights the process development and scaling-up strategies adopted in the enzyme production and its application. En ligne : https://drive.google.com/file/d/18naDBeF5wKDIhAx_jvkFU40lX4cpVNHm/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8183
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 80, N° 2 (03-04/1996) . - p. 52-56[article]Réservation
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