title: Treatment of bleached wool with trans-glutaminases to enhance tensile strength, whiteness, and alkali resistance.
abstract: Trans-glutaminases is known as a cross-linking enzyme for proteins. Wool is a proteinous fiber conventionally is treated through several processes to obtain the desirable characteristics. Bleaching is also one of the most important processes usually carried out by using an oxidizing agent in a conventional method. The tensile strength of wool yarns was reduced as a consequence of oxidative bleaching. Here, with the help of microbial trans-glutaminases (m-TGases), a novel bleaching process was disclosed in a way to obtain a bleached wool yarn with no significant reduction in the tensile strength. The results confirmed that the bleached wool yarns with H(2)O(2) could be modified by m-TGases post-treatment. The m-TGases treatment on the bleached wool yarns improved the tensile strength and whiteness along with the higher alkali resistance.
authors.affiliation: Textile Department, Center of Excellence in Textile, Amirkabir University of Technology, Tehran, Iran. tex5mm@aut.ac.ir
authors.forename: Majid
authors.initials: M
authors.lastname: Montazer
authors.forename: Fatemeh
authors.initials: F
authors.lastname: Lessan
authors.forename: Elmira
authors.initials: E
authors.lastname: Pajootan
authors.forename: Fatemeh
authors.initials: F
authors.lastname: Dadashian
mesh_terms: D000192:Actinomycetales / Q000737:chemistry / Q000201:enzymology*; D000468:Alkalies / Q000009:adverse effects; D000818:Animals; D001426:Bacterial Proteins / Q000378:metabolism* / Q000494:pharmacology; D057886:Bleaching Agents / Q000378:metabolism* / Q000494:pharmacology; D003432:Cross-Linking Reagents / Q000378:metabolism* / Q000494:pharmacology; D006861:Hydrogen Peroxide / Q000009:adverse effects; D008422:Materials Testing; D016877:Oxidants / Q000009:adverse effects; D010084:Oxidation-Reduction; D012756:Sheep; D017550:Spectroscopy, Fourier Transform Infrared; D013718:Tensile Strength / Q000187:drug effects; D011503:Transglutaminases / Q000378:metabolism* / Q000494:pharmacology; D014935:Wool / Q000737:chemistry / Q000187:drug effects / Q000378:metabolism*
chemical_list: D000468:Alkalies; D001426:Bacterial Proteins; D057886:Bleaching Agents; D003432:Cross-Linking Reagents; D016877:Oxidants; D006861:Hydrogen Peroxide; D011503:Transglutaminases