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675 : Technologie du cuir et de la fourrure |
Ouvrages de la bibliothèque en indexation 675
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Antibiotics in hide preservation and bacteria control / George Stockman in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CII, N° 2 (02/2007)
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Titre : Antibiotics in hide preservation and bacteria control Type de document : texte imprimé Auteurs : George Stockman, Auteur ; Dean Didato, Auteur ; Elton L. Hurlow, Auteur Année de publication : 2007 Article en page(s) : p. 62-67 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The use of antibiotics requires careful deliberation regarding both the criteria for their selection and the methodology of their application. Certain widely available antibiotics, including Doxycycline HCl, have demonstrated activity for short-term preservation of fresh hides. By eliminating the requirement of dry salt or brine curing, there are potential major benefits from reduced environmental burden. When used in the soak, such antibiotics may prove to be an economical alternative to conventional antimicrobials currently used for this purpose. However, evaluation of the use of clinically significant antibiotics must take into consideration other factors besides efficacy in hide preservation or bacterial protection during soaking. In particular, we must consider potential long-term risks associated with non-therapeutic applications of molecules that have been shown to be effective human antibiotics. Before adopting widespread use of clinical antibiotics in hide preservation and soaking, it would be sensible to weigh the benefits and the potential consequences of such uses in the broadest context of global health, politics, and business decision-making. This paper will explore the use of antibiotics in industry and will discuss widely differing viewpoints on the subject. The widespread use of antibiotics for promotion of the general health and growth of food-producing animals will be reviewed. Such uses account for approximately 70% of the antibiotics and other antimicrobials used in the United States and are the subject of vigorous ongoing debate. Antibiotic usage for hide preservation and soaking protection will likely undergo similar scrutiny. Clear guidance has been provided by the World Health Organization Alliance for the Prudent Use of Antibiotics. Adoption of these policies by nations around the world is occurring at a slow yet measured pace. Industrial uses of antibiotics offer obvious immediate environmental benefits, offset by possible long-term compromised viability against significant human diseases. This disparity presents members of the hide and leather industries with an interesting opportunity to test Environment, Safety and Health Policies, as well as Corporate Vision. En ligne : https://drive.google.com/file/d/1DGTlz6V8cpE8TN8kf2SpdZMf_DZa6o5i/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3369
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CII, N° 2 (02/2007) . - p. 62-67[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006226 - Périodique Bibliothèque principale Documentaires Disponible Antibiotics to control green hide biodeterioration / P. G. Berwick in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 74 (Année 1990)
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Titre : Antibiotics to control green hide biodeterioration Type de document : texte imprimé Auteurs : P. G. Berwick, Auteur ; S. A. Gerbi, Auteur ; Alan E. Russell, Auteur Année de publication : 1990 Article en page(s) : p. 142-151 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Microbiological bioassays were performed to determine the antibacterial activity of selected béta-lactams, tetracyclines and aminoglycosides against vibrio alginolyticus as the collagenolytic test bacterium. Consequently, antibiotics with high antibacterial activity and potential application in short term preservation of gree hides were selected. Results from these assays indicated that the tetracycline type antibiotics were most effective at 1 % w/v concentrations, with the beta-lactams to a lesser extent.
The interaction of tetracycline HCl with hide powder was investigated, to determine any inactivation of the antibiotic due to drug/collagen binding. The unbound antibiotic fraction was chemically and microbiologically assayed to determine any decrease in the amount of free ligand. results showed minimal apparent interaction of the antibiotics confirmed by shrinkage temperature measurements of green hide samples treated with antibiotic.
Next laboratory scale tannery drumming experiments determined the usefulness of antibiotic curing of green hides. Subjective (hairslip, development of malodour) and objective (determination of extractable nitrogen ration and volatile nitrogen ratio) measurements determined the efficacy of antibiotic curing. Maximum total extractable nitrogen ratio and total volatile nitrogen ratio assessed the deterioration level of antibiotic cured green hide. Based on a maximum extractable nitrogen ratio of 2.5, ten days storage of antibiotic cured green hide samples was obtained.En ligne : https://drive.google.com/file/d/1FSJR3CufW82T83pkNNxl-FswG604R_gF/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8765
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 74 (Année 1990) . - p. 142-151[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007137 - Périodique Bibliothèque principale Documentaires Disponible Antifungal activities against mould and yeast strains / Meral Birbir in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 80, N° 4 (07-08/1996)
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Titre : Antifungal activities against mould and yeast strains Type de document : texte imprimé Auteurs : Meral Birbir, Auteur ; O. Özyaral, Auteur ; C. Johansson, Auteur ; A. Ilgaz, Auteur Année de publication : 1996 Article en page(s) : p. 114-117 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The efficacy of three commercially available fungicides was determined on 20 fungal species and nine yeast species isolated from Turkish vegetable tanned sole leathers, chrome tanned hides (blue stock), 1-2 years and older chrome tanned leather, new and used shoes, and human feet. Each of the isolated organisms, whether fungi or yeast were treated with a series of dilutions of the fungicides to determine their relative effectiveness.
The active ingredients of the commercially available fungicides were : isotiazoline and a quaternary ammonium compound (Fungicide 1A), benzthiazole (Fungicide B), and p-chloro-m-cresol with o-phenylphenol (Fungicide C). Fungal attack was controlled with fungicide A at a 1:16 dilution, fungicide C were more effective than fungicide B in controlling fungal growth on leather. Fungicide A at 1:128 dilution, fungicide B at 1:64 dilution and fungicide C at 1:128 dilution exerted complete protection against yeast growth.En ligne : https://drive.google.com/file/d/1suUFroIcVc9jJ25z22d1vlsbATbsDtOp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8122
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 80, N° 4 (07-08/1996) . - p. 114-117[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007011 - Périodique Bibliothèque principale Documentaires Disponible Antifungal leather treatment with biological extracts / Kathrin Leppchen in LEATHER INTERNATIONAL, Vol. 213, N° 4816 (11-12/2011)
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Titre : Antifungal leather treatment with biological extracts Type de document : texte imprimé Auteurs : Kathrin Leppchen, Auteur ; Martin Völker, Auteur ; Michael Meyer, Auteur Année de publication : 2011 Article en page(s) : p. 36-38 Langues : Anglais (eng) Catégories : Biofongicides
Cuirs et peaux -- ConservationIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather as a natural product containing grease, dyes and tanning agents is an ideal nutrient source for moulds. The risk of mould growth is given in nearly all process stages ofleather production as well as the subsequent processing and use. Their enzymes digest proteins, fats and carbohydrates of the leather structure. Optimum conditions moulds germinate, grow and may eventually destroy the leather. Due to the global division of labour in the leather industry and the resulting transportation of raw hides, intermediates, leather and leather goods over long distances, it is necessary to protect the package and material against a growth of moulds.
Currently, adequate protection of leather is ensured solely by using toxic and ecologically critical preservatives such as benzothiazoles or phenol derivatives.
This paper introduces an antifungal treatment for leather and its intermediates on the basis of biological and environmentally friendly agents.
When searching for appropriate agents that are known to feature antifungal properties, especially carboxylic acids with 8 to 11 carbon atoms including caprylic acid (C8), pelargonic acid (C9) and undecylenic acid (C11) were noted as effective. The carboxylic acids destroy cell walls, denature proteins of fungi, impact fatty acid synthesis and pigmentogenesis, thus preventing the growth of moulds, eg by suppressing their respiration. Carboxylic acids are classified as environmentally friendly, physiologically safe and non-toxic. As a bulk-product from fat lipolyse they are easy to synthesis and readily available.
The antifungal treatment should be effective during transportation of packaged goods and prevent the germination of existing mould spores on leather materials regardless of surrounding microclimate.Note de contenu : - Determination of the antifungal efficacy of the fatty acids and their salts
- Treatment of leather and its intermediates
- Antifungal activity of fatty acids and their salts and treatment of intermediates
- Variation in concentration
- Variation in exposure time
- Variation of spore concentration - Antifungal spectrum
- Exposure to different physical conditions - Impact on material properties
- Antifungal efficacy of the fatty acid salt with aldehyde tanned leatherEn ligne : https://drive.google.com/file/d/1ne1-pgKrp--5COfKzfWERDZ5VC0RUB19/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12756
in LEATHER INTERNATIONAL > Vol. 213, N° 4816 (11-12/2011) . - p. 36-38[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13581 - Périodique Bibliothèque principale Documentaires Disponible 13580 - Périodique Bibliothèque principale Documentaires Disponible Antimicrobial leather : preparation, characterization and application / Wang Zhiyuan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 97, N° 4 (07-08/2013)
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Titre : Antimicrobial leather : preparation, characterization and application Type de document : texte imprimé Auteurs : Wang Zhiyuan, Auteur ; Haibin Gu, Auteur ; Wuyong Chen, Auteur Année de publication : 2013 Article en page(s) : p. 154-165 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antimicrobiens
Caractérisation
Encapsulation
Huile de clou de girofle
PolyuréthanesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In order to produce a new kind of functional antimicrobial leather, that has the lasting ability to kill or inhibit microorganisms, we investigated the preparation and properties of PU-microencapsulated clove oil (PU-MCO). Firstly, the microcapsules were prepared by interfacial polymerization using polyurethane (PU) as the wall material. Results of optimization experiments show that when the ratios of shell-core, PEG-TDI and 0/W phase are 1:3 (w/w), 1:3 (mol ratio) and 15:85(w/w), respectively, the PU-MCO emulsion obtained is very stable and the encapsulation rate of clove oil can reach 94.3%. Laser particle, zeta potential analyzer, SEM, FT-IR, TG and GC-MS were used to characterize its size, shape, structure, components and stability. Results indicate that the microcapsule particles assume the spherical shape with average size of 0.2-1.0unn, and the main content of clove oil is not significantly affected by the microencapsulation. However, its heat stability has greatly improved and the starting decomposition temperature can be improved to 110°C or so. Meanwhile, the microencapsulated clove oil shows a good controlled-release property.
Results of antimicrobial tests reveal that, although the minimum inhibitory concentrations (MICs) of the microcapsule product are higher than that of crude clove oil, it still has sufficient antimicrobial activity against bacteria, yeasts and moulds.
Finally, the PU-MCO was applied in retanning goat garment leather. The leather shows good antimicrobial property which persists for a long time at room temperature and is not significantly affected by perspiration or washing because of the firm physical and chemical combination between the PU wall material and leather fibres. Thus, using the microencapsulated natural clove oil, we successfully provided a feasible method to prepare an antimicrobial leather with a non-toxic nature and long-term effectiveness.Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Preparation of PU-microencapsulated clove oil - Characterization of PU-microencapsulated clove oil (Particle size - Optical microscope - Scanning electron microscope (SEM) - Gas chromatography-mass spectrometry (GC-MS) - Encapsulation rate - FT-IR - Thermal analysis - Release property - Antimicrobial activity) - Application of PU-MCL to wet-blue (Shrinkage temperature (Ts) - Antimicrobial activity of crust leathers - Controlled-release test - Water-washing test - Perspiration test)
- RESULTS AND DISCUSSION : Optimization of preparation conditions of PU-MCO (Particle size - Diversity and shape - GC-MS - FT-IR - TG and DSC - Release property - Antimicrobial activity) - Properties of antimicrobial leathers produced by PU-MCO (Antimicrobial property - Durability of antimicrobial property)En ligne : https://drive.google.com/file/d/1jgZWx7SPuuAdcuvh4qjmtgEaJ-E_mA7y/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19220
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 97, N° 4 (07-08/2013) . - p. 154-165[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15393 - Périodique Bibliothèque principale Documentaires Disponible Antioxidant activity of keratin hydrolysates studied by DSC / Ján Matyasovsky in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIV, N° 1 (01/2019)
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PermalinkAntioxidant effects of keratin hydrolysates / Ján Matyasovsky in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 10 (10/2017)
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PermalinkAntioxidant effects of phenolic compounds on unsaturated lipids preventing the oxidation of chrome(III) / Yu Congzheng in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 94, N° 1 (01-02/2010)
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PermalinkAntioxidation activity of cysteine and cystine prepared from sheep wool / Ján Matyasovsky in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 5 (05/2020)
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PermalinkAntiseptic preservation studies / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61 et 62 (Années 1977 et 1978)
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PermalinkAntiseptic preservation studies / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61, N° 4 (07-08/1977)
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PermalinkPermalinkAperçu général sur le mécanisme de la teinture du cuir / K. Boroyan in TECHNICUIR, N° 10 (12/1976)
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PermalinkAperçu général sur les problèmes d'imperméabilisation du cuir / K. Boroyan in TECHNICUIR, N° 8 (10/1973)
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PermalinkAPLF 2009 - Materials, manufacturing and technology / Hong Kong [China] : Asian Pacific Leather Fair (2009)
PermalinkApplicability of fluorochemical compounds with carboxylic groups in the leather waterproofing process / E. Gratacos in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXII (Année 1987)
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PermalinkL'application des acides organiques et de leurs sels dans le tannage au chrome / Stanley Briggs in REVUE TECHNIQUE DES INDUSTRIES DU CUIR, Vol. LXI (Année 1969)
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PermalinkApplication des améliorations technologiques au travail en humide / C. Pillard in TECHNICUIR, (Années 1969-1970)
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PermalinkApplication and properties of modified wook keratin composites as film-forming agent for leather finishing / Zeng Chunhui in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 98, N° 6 (11-12/2014)
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PermalinkApplication d'un extensomètre électronique modifié à l'étude de la stabilisation dimensionnelle des cuirs / B. Michel in TECHNICUIR, (Années 1969-1970)
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PermalinkApplication of acid protease for eco-friendly pre-treatment of goat skin to improve antimicrobial finish using herbal natural extracts / Mona Vajpayee in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVIII, N° 6 (06/2023)
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PermalinkApplication of acidic protease in the pickling to simplify the pelt bating process / Xu Zhang in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 3 (Année 2021)
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PermalinkApplication of acrylic resin coating agent modified by nano SiO2 / Ma Jianzhong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 5 (09-10/2006)
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PermalinkApplication of alkaline protease isolated from alcaligenes faecalis for enzymatic unhairing in tanneries / E. Berla Thangam in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. XCVI, N° 4 (04/2001)
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PermalinkApplication of an enzymatic bate from local materials / M. M. Ahmed in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 87, N° 4 (07-08/2003)
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