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Application of a proteolytic enzyme in tanneries as a depilating agent / Shukla Pal in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXXI, N° 3 (03/1996)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXXI, N° 3 (03/1996) . - p. 59-63 Titre : Application of a proteolytic enzyme in tanneries as a depilating agent Type de document : texte imprimé Auteurs : Shukla Pal, Auteur ; Rintu Banerjee, Auteur ; B. C. Bhattacharyya, Auteur Année de publication : 1996 Article en page(s) : p. 59-63 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Solid-state fermentation (SSF) for the production of an alkaline protease was carried out using the microorganism Rhizopus oryzae. The enzyme is stable from pH 3-11 and at temperature up to 80°C. During optimization of the different environmental parameters for the unhairing of skins, 46% hydration, 83% humidity, pH 8.0 and incubation period of 2 hours were found to produce the best results. Then the physical properties of the skins unhaired by enzymatic treatment and the chemical treatment were compared, the former was found to give better quality leather. En ligne : https://drive.google.com/file/d/145tvB9zyI6lE7Psjx53SKk2foqX6_Agm/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7827 [article]

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An environmental assessment and feasibility study of using vegetable tannery biosolids as a soil conditioner/plant growth supplement / Thomas E. Herlihy in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXXI, N° 3 (03/1996)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXXI, N° 3 (03/1996) . - p. 64-79 Titre : An environmental assessment and feasibility study of using vegetable tannery biosolids as a soil conditioner/plant growth supplement Type de document : texte imprimé Auteurs : Thomas E. Herlihy, Auteur ; Wayne H. Billings, Auteur Année de publication : 1996 Article en page(s) : p. 64-79 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : A continuing four year research project started in 1992, is sponsored by three cooperating vegetable tanneries based in pennsylvania with support from the Ben Franklin Partnership. This project has assessed the environmental impact of land application of wastewater biosolids on soil chemistry, surface water runoff, groundwater recharge and plant tissue composition. The biosolids have proven to be an environmentally clean, low impacting source of plant nutrients and an effective soil conditiner/plant growth supplement. The results of this project convinced and satisfied Pennsylvania's Department of Environmental Resources (DER) and Department of Agriculture (DA), that the biosolids are not a waste product but rather a valuble and useful "coproduct" of the manufacturing process. The DER issued each tannery a coproduct "letter of currence" stating that the biosolids are no longer a regulated waste. The bisolids are now licensed conditioners (DA) that are bought and sold like any other market commodity. En ligne : https://drive.google.com/file/d/1BQdv3ngLuDc2eJNZuqig1g_uC3tKfVdJ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7828 [article]

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