Polyethylene glycol as a preservative for pigskin and its interaction with collagen / Chunhua Wang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 10 (10/2018)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIII, N° 10 (10/2018) . - p. 326-334 Titre : Polyethylene glycol as a preservative for pigskin and its interaction with collagen Type de document : texte imprimé Auteurs : Chunhua Wang, Auteur ; Huijuan Peng, Auteur ; Jun Sang ; Wei Lin Année de publication : 2018 Article en page(s) : p. 326-334 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse thermique Collagène Cuirs et peaux -- Conservation Cuirs et peaux de porcs Fourier, Spectroscopie infrarouge à transformée de Microscopie à force atomique Poids moléculaires Polyéthylène glycol Potentiel zeta Solutions de polymère Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Herein, an immersing method for the pigskin preservation by using polyethylene glycol (PEG) with different molecular weights (Mw = 200, 600, 6000) was developed and the influence of PEG on the conformation of type I collagen was investigated. Only PEG200 followed dehydration and rehydration patterns similar to that of salt curing and exhibits reasonably good preservative and bloodstains removal effects. Zeta potential analyses show that the collagen-PEG solutions have good dispersions stability. FT-IR and US-DSC results indicate that collagen triple helixes are kept integrated in the presence of PEG, and the highly hydrated feature of PEG helps to maintain the stability of the protein conformation. Atomic Force Microscope (AFM) images show that the collagen fibrils become more dispersed with the increasing Mw of PEG. The present work gives positive insight to partially replacing sodium chloride for the preservation of raw hide and skin, as well as the development of PEG-collagen biomaterials. Note de contenu : - EXPERIMENTAL : Materials - Preservation test with PEG - Inhibition zone test of PEG - Preparation of PEG-collagen samples - Zeta potential measurement - Fourier transform infrared spectroscopy (FT-IR) measurement - Ultra-sensitive differential scanning calorimeter (US-DSC) - Atomic force microscope (AFM) observation En ligne : https://drive.google.com/file/d/1LRY2hiHjLp_KYBqpszPrrHZyBO1vHOjE/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31092 [article]

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