Salt free preservation of raw goat skin using swietenia mahogany (seed) extract / Md. Abdur Razzaq in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 2 (02/2022)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVII, N° 2 (02/2022) Titre : Salt free preservation of raw goat skin using swietenia mahogany (seed) extract Type de document : texte imprimé Auteurs : Md. Abdur Razzaq, Auteur ; Murshid Jaman Chowdhury, Auteur ; Md. Tushar Uddin, Auteur Année de publication : 2022 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acajou et constituants Bactéries -- Comptage Chlorure de sodium -- Suppression ou remplacement Croûte (cuir) On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés. Cuirs et peaux -- Conservation Cuirs et peaux -- Propriétés organoleptiques Cuirs et peaux -- Propriétés physiques Cuirs et peaux -- Teneur en azote Cuirs et peaux -- Teneur en humidité Cuirs et peaux de chèvres Extraits de plantes Pollution -- Analyse Température de retrait Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Curing of hides and skins using sodium salt is a well-established and economical preservation technique worldwide. But it contributes to generating a large amount of total dissolved solids (TDS) and increasing the salinity of water during leather processing which is a threat to the environment. The current research is an attempt to preserve goat skin using mahogany (Swietenia mahogany) seed’s extract. In real practice different percentages of mahogany seed extract were applied on raw goat skin and 3% (by weight of skin) of it showed best result. To evaluate the preservation efficiency, related parameters of preservation viz. odor, hair slip, shrinkage temperature, moisture content, bacterial count etc. were monitored regularly for 30 days. The obtained results were compared with conventional salt curing process. The experimental trial showed efficiency in lessening TDS value and chloride content. The preserved goat skins of both trials were treated following conventional leather processing techniques and physical properties were studied. The discussed preservation method exhibited comparable result in every index. Note de contenu : - MATERIAL AND METHOD : Collection of skin - Chemicals - Collection and extraction of mahogany seed - FTIR analysis - Application of extract for curing - Moisture content - Nitrogen content - Bacterial count - Hydrothermal property - Leather making - Pollution load analysis - Physical properties analysis - SEM analysis - RESULTS AND DISCUSSION : Organoleptic properties - FTIR analysis - Moisture content - Nitrogen content - Bacterial count - Shrinkage temperature - Pollution load analysis - Physical properties study - SEM analysis - Table 1 : Organoleptic properties of goat skin preserved with mahogany seed extract - Table 2 : Moisture content (%) of preserved skins - Table 3 : Nitrogen content (gm/kg of sample) of preserved skins - Table 4 : Bacterial count in the preserved skins - Table 5 : Shrinkage temperature (°C) of preserved skins - Table 6 : Pollution load status of soaking liquor - Table 7 : Physical properties of processed crust leather DOI : https://doi.org/10.34314/jalca.v117i2.4727 En ligne : https://drive.google.com/file/d/1QzAVPnrOyLWN0PcOw6q3o1K8JLkOyaFE/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37165 [article]

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