Costs-effective method for the production of depilation / S. Malathi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVI, N° 1 (02/1991)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVI, N° 1 (02/1991) . - p. 33-41 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 : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8585 [article]

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Enzyme hydrolysis of solid tannery wastes : solid state enzyme production / R. Chakraborty in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 82, N° 2 (03-04/1998)

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 82, N° 2 (03-04/1998) . - p. 56-58 Titre : Enzyme hydrolysis of solid tannery wastes : solid state enzyme production Type de document : texte imprimé Auteurs : R. Chakraborty, Auteur ; S. Sarkar, Auteur Année de publication : 1998 Article en page(s) : p. 56-58 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A heat stable alkaline protease was found to be produced by Paecilomuces lilacinus. The enzyme was produced by solid state fermentation. Solid wastes such as lime fleshings and chrome shavings were used as the substrate for hydrolysis. Both wastes were efficiently solubilised. The effectiveness of the hydrolysis was determined by Kjeldahl nitrogen analysis. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7865 [article]

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