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Evaluating combinations of leather fungicides by inhibition zone / Gu Haibin in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 2 (03-04/2007)
[article]
Titre : Evaluating combinations of leather fungicides by inhibition zone Type de document : texte imprimé Auteurs : Gu Haibin, Auteur ; Changqing Zhao, Auteur ; Wuyong Chen, Auteur ; Yan Li, Auteur Année de publication : 2007 Article en page(s) : p. 63-68 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Conservation
Fongicides
Inhibition microbienne
SynergieIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : synergism index (SI, Formula (1)) and graphical method (Fig. 1) expressed by the minimum inhibitory concentrations (MIC) are often used to evaluate the type of action of combined leather fungicides. The determination of MIC is a complicated and time-consuming process and the exact value is difficult to determine, so a rapid, simple method would be useful to evaluate synergistic combinations. In this study, a formula of the synergism index (SI*, Formula (3)) and the graphical method (Fig. 3) expressed by the diameters of inhibition zones were defined.
(2-thiocyanoethyl)-cinnamate (A) and a commercial product of Isothiazoline whose active ingredients are the mixture 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one (B) were chosen for combination, and the diameters of inhibition zones and minimum inhibitory concentrations for the effectiveness of different combinations to nine fungi were determined to verify the feasibility of the two methods.
Results show that the values of SI calculated by MIC and the value of SI* calculated by diameters of inhibition zones are only slightly different, but they both show the same tendency in that, to most fungi and for most proportions, the values of SI and SI* are all less than 1.0. So, the different combinations of A and B show a synergistic effect or additive effect and the method of SI* is viable to evaluate their action. The relation between the value of SI* and the type of action is same as that of SI. Regarding the graphical method, the results for MIC show a dramatic synergistic effect that is different from that of SI method, and the results of evaluation of diameters of inhibition zones is similar to that of SI* method. So the graphical method expressed by the diameters of inhibition zones is also usable. As the determination of inhibition zones is a relative simple process, the two new methods are very convenient for evaluating synergistic combinations of leather fungicides.Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Preparation off ungal spore suspensions - Preparation ofme dium containing fungal spores - Evaluation ofaction type by crossed filter paper strip - Mensuration ofdiam eter ofinhibit ion zone - Determination ofminim um inhibitory concentration (MIC)
- RESULTS AND DISCUSSION : Evaluation by crossed filter paper strip - Evaluation by synergism index - Evaluation ofacti on type by the graphical methodEn ligne : https://drive.google.com/file/d/1wYcVNUB_nVyO6LGAkIDktar9D2dydMan/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39035
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 91, N° 2 (03-04/2007) . - p. 63-68[article]Evaluation of antimicrobial activity of Lawsonia Inermis (Henna) against microbial strains isolated from goat skin/leather / A. E. Musa in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 5 (05/2011)
[article]
Titre : Evaluation of antimicrobial activity of Lawsonia Inermis (Henna) against microbial strains isolated from goat skin/leather Type de document : texte imprimé Auteurs : A. E. Musa, Auteur ; A. Tamil Selvi, Auteur ; Rathinam Aravindhan, Auteur ; Balaraman Madhan, Auteur ; Aafreen Fathima, Auteur ; Jonnalagadda Raghava Rao, Auteur Année de publication : 2011 Article en page(s) : p. 170-175 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens
Cuirs et peaux -- Conservation
Cuirs et peaux de chèvres
HennéIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In the present work, antimicrobial activity of the aqueous extract from leaves of Lawsonia inermis (henna) has been evaluated. Two gram positive and five gram negative bacterial strains isolated from raw goat skins and three fungal species isolated from finished leathers have been utilized for the antimicrobial studies using aqueous extract from henna leaves. Gram-positive bacteria have found to be completely inhibited by henna at concentrations of 650 ppm and gram negative bacteria have been inhibited by henna concentration between 780 to 910 ppm. Growths of all fungal strains isolated have been inhibited by henna extract at a concentration of 1300 ppm. This study clearly demonstrates that henna offers good antimicrobial activity against the bacterial and fungal species. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of henna extract - Isolation and screening of bacterial strain from goat skin - Bacterial growth in the presence of henna - Isolation and screening of fungal spores - Preparation of spore suspension - Fungal growth in the presence of henna.
- RESULTS AND DISCUSSION : Characterization of bacterial isolated from goat skins - Anti-bacterial activity of henna against bacterial species isolated from goat skins - Characterization of fungal species isolated from finished leather - Anti-fungal activity of henna against fungal strains isolated from leather - Effectiveness of henna as an anti-microbial agent.En ligne : https://drive.google.com/file/d/12eMBNHVROCM-K3obroF6CPEhTeG6-uCI/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11591
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVI, N° 5 (05/2011) . - p. 170-175[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012969 - Périodique Bibliothèque principale Documentaires Disponible Examination and treatment of a Portolan Chart / Niccolo Caldararo in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 2 (03-04/2017)
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Titre : Examination and treatment of a Portolan Chart Type de document : texte imprimé Auteurs : Niccolo Caldararo, Auteur ; Anne C. Kahle, Auteur Année de publication : 2017 Article en page(s) : p. 59-65 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antiquités (objets anciens) -- Analyse
Antiquités (objets anciens) -- Conservation et restauration
Cartes de navigation
Cuirs et peaux -- ConservationIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : A 14th century portolan chart on skin was examined for treatment. Examination produced information regarding Portolan charts in general and aspects of deterioration due to ageing and older restoration methods. Treatment methods are reviewed and à treatment is described. Mistaken identify of the substrate was overcome and a disturbing and disfiguring damage described : An appropriate treatment was designed but had to be modified as the initial : treatment progress was assessed. Given that only about 180 of these charts have survived to the present the manufacture, condition and preservation are of interest to scholars. Note de contenu : - Brief history of portolan charts
- Condition and description of the 2880 portolanEn ligne : https://drive.google.com/file/d/1xdRkVC1S0WyQJyMSbGpxrdF_gTTVzVGb/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28511
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 2 (03-04/2017) . - p. 59-65[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18878 - Périodique Bibliothèque principale Documentaires Disponible Examination of catabolic activities of enterobacteriaceae isolated from soaked sheep skins and cattle hides / Eda Yazici in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 3 (05-06/2018)
[article]
Titre : Examination of catabolic activities of enterobacteriaceae isolated from soaked sheep skins and cattle hides Type de document : texte imprimé Auteurs : Eda Yazici, Auteur ; Meral Birbir, Auteur Année de publication : 2018 Article en page(s) : p. 130-140 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bactéries -- Identification
CatabolismeLe catabolisme est l'ensemble des réactions de dégradations moléculaires de l'organisme considéré. Il est le contraire de l'anabolisme, ensemble des réactions de synthèse. Le catabolisme et l'anabolisme sont les deux composantes du métabolisme.
Les réactions de catabolisme sont des oxydations (ou des déshydrogénations) et elles sont thermodynamiquement favorables, c'est-à -dire qu'elles sont exergoniques (cédant de l'énergie chimique, produisant de l'énergie).
Les réactions du catabolisme des protides, glucides, lipides, acides nucléiques, etc., sont toutes intimement liées. Il s'agit d'un enchaînement de réactions chimiques.
Cuirs et peaux -- Conservation
Cuirs et peaux de bovins
Cuirs et peaux de moutons
EntérobactériacéesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Detailed examination of the members of family Enterobacteriaceae found on soaked sheepskins and cattle hides offers important information about enteric species on the samples, the efficiency of antibacterial agents used in soaking process against these enteric species and their roles in deterioration of skins or hides during soaking process. Hence, the goal of this study was to examine members of the family Enterobacteriaceae on soaked sheepskins and cattle hides treated with antibacterial agent. In this study, bacterial species belonging to the family Enterobacteriaceae on five soaked sheepskins and ten cattle hides were identified using API® 20E test kits and the other biochemical tests. While Citrobacter freundii, Citrobacter koseri, Cronobacter sakazakii, Enterobacter amnigenus, Enterobacter cloacae, Kluyvera intermedia, Morganella morganii, Proteus mirabilis and Providencia rettgeri were isolated from the soaked sheepskins, Citrobacter koseri, Cronobacter sakazakii, Ewingella americana, Kluyvera intermedia, Morganella morganii, Providencia rettgeri, Serratia marcescens, Serratia plymuthica and Serratia rubidae were obtained from the soaked cattle hides. A fairly high percentage of soaked skin and hide samples contained Enterobacteriaceae members which have catabolic activities for deterioration of skins and hides. The presence of the members of Enterobacteriaceae on the soaked skin and hide samples was thought to be related to faecal contamination, the animal itself, environmental sources and inadequate preservation. As a conclusion, efficient antibacterial treatments should be applied in soaking process to kilt Enterobacteriaceae members which may adversely affect leather quality. Note de contenu : - EXPERIMENTAL PROCEDURES : Soaked sheepskin and cattle hide samples - Examination of pH values of the soaked sheepskin and cattle hide samples - Isolation of members of the family enterobacteriaceae from the soaked hide and skin samples and their identification - Oxidase activities of the enteric bacteria - Catalase activities of the enteric bacteria Protease activities of the enteric bacteria - Lipase activities of the enteric bacteria En ligne : https://drive.google.com/file/d/1wcGfsLt1Q4tlCVMjs4ATOYomxtrNZd8F/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30793
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 102, N° 3 (05-06/2018) . - p. 130-140[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20058 - Périodique Bibliothèque principale Documentaires Disponible Examination of efficiency and sufficiency of salt-pack curing method / Emel Aslan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 95, N° 3 (05-06/2011)
[article]
Titre : Examination of efficiency and sufficiency of salt-pack curing method Type de document : texte imprimé Auteurs : Emel Aslan, Auteur ; Meral Birbir, Auteur Année de publication : 2011 Article en page(s) : p. 98-103 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Conservation Tags : Peau 'Méthodes conservation' 'Cristaux sel' 'Teneur humidité' cendres' 'Mesure pH' 'Prolifération bactérienne' 'Bactéries lipolytique' mésophiles' protéolytiques' Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Conservation defects affect leather quality adversely and cause important economic losses. Therefore, the goal of this study was to evaluate hide quality by comparing important parameters of salt-pack cured hides and determine efficiency and sufficiency of the curing method in the areas both with and without salt crystals present on the hides. The areas with and without salt crystals on the salt-pack cured hide samples, (collected from different tanneries in the leather Organized Tannery Region, Tuzla-Istanbul-Turkey), were examined in terms of pH values, moisture and ash contents, brine saturations, total mesophile, proteolytic and lipolytic mesophile bacterial numbers. The pH values of the both areas of all the hide samples (6.3-7.4) were found to be optimum for bacterial growth. Moisture contents of the areas without salt crystals present on the hide samples (42-57 %). Ash contents and salt saturations of both types of area of all the hide samples (21-36 %) and 100 % respectively) were found to be the same as standard values. Although the hides were salt-pack cured, high numbers of mesophile, proteolytic and lipolytic mesophile bacteria were isolated from both areas of the hides. Mean values of the mesophile (2X10 7 c.f.u/g, 1.5 X 10 7 c.f.u./g). As a conclusion, due to an inadequately applied salt-pack curing process, this method was not a satisfactory method to prevent bacterial proliferation on hides. Hence, the traditional salt-pack curing method should be modified to improve the counter bacterial effect. Note de contenu : - Collection of the salt-pack cured hide samples from different tanneries
- Measurement of pH values of the areas with and without salt crystals of the salt-pack cured hides
- Moisture, ash and salt saturation of the areas with and without salt crystals of the salt-pack cured hides
- Examination of mesophilic, proteolytic and lipolytic mesophilic bacteria at the areas with and without salt crystals of the salt-pack cured hides.En ligne : https://drive.google.com/file/d/1g_fTb0FIPiCrFlfl4DmiG47O4D8ivFD2/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11877
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Code-barres Cote Support Localisation Section Disponibilité 013132 - Périodique Bibliothèque principale Documentaires Disponible Examination of gram-negative bacteria on salt-pack cured hides / Emel Aslan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVII, N° 4 (04/2012)
PermalinkExamination of gram positive bacteria on salt-pack cured hides / Emel Aslan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 12 (12/2011)
PermalinkExamination of moderately halophilic bacteria / Meral Birbir in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 105, N° 5 (09-10/2021)
PermalinkPermalinkExtracellular protease activities of extremely halophilic archaea and their control via direct electric current / Meral Birbir in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 92, N° 2 (03-04/2008)
PermalinkGreen solution for salinity in tannery wastewater : a step forward in leather processing / Subramanian Saravanabhavan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CIX, N° 7 (07/2014)
PermalinkHistological analysis of the skin dermal components in bovine hides stored under different conditions / S. Montelli in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CX, N° 2 (02/2015)
PermalinkHow to improve draw and layout in every stage of beamhouse processing / Korshed Alam in INTERNATIONAL LEATHER MAKER (ILM), N° 44 (11-12/2020)
PermalinkIdentification and characterization of potential biocide-resistant fungal strains from infested leathers - A systematic study / Kavitha Sundar in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 2 (02/2020)
PermalinkIdentification of gaps in knowledge and practices affecting the quality of skins/hides on the eve of Eid-ul-Adha in Pakistan / Sadaqat Ali Chattha in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVIII, N° 11 (11/2023)
PermalinkImproving tearing resistance of leather - Part 1 prevention and treatment of low tearing strength in the tannery / Ricardo A. Tournier in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVI, N° 12 (12/2021)
PermalinkIndigenous Arctic fish skin / Elisa Palomino in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 105, N° 2 (03-04/2021)
PermalinkInhibiting lipolytic haloarchaeal damage on brine cured hide with halocin producer strains / Meral Birbir in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 91, N° 2 (03-04/2007)
PermalinkInvestigation of moderately halophilic bacteria causing deterioration of the salted sheep and goat skins and their extermination via electric current applications / Pinar Caglayan in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 2 (02/2018)
PermalinkInvestigation techniques and conservation methods for historical parchment document / Gomaa Abdel-Maksoud in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 95, N° 1 (01-02/2011)
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