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IJFTR Vol.37(3) [September 2012] >


Title: Enzymatic surface hydrolysis of polyamide fabric by protease enzyme and its production
Authors: El-Bendary, Magda A
El-Ola, Samiha M Abo
Moharam, Maysa E
Keywords: Agro-industrial by-products
Bacillus
Polyamide fabric
Protease production
Surface hydrolysis
Issue Date: Sep-2012
Publisher: NISCAIR-CSIR, India
Abstract: The present study is aimed at finding out the protease enzyme specific for hydrolysis of polyamide fabric surface and its production in cost effective medium for application in textile industry. Hydrolysis of polyamide fabric by protease enzymes produced by Bacillus isolates 2W, 16P and 36P is confirmed by improved hydrophilic properties, enhanced staining with basic dyes, scanning electron microscope and FTIR. SEM images of protease treated fabric show heterogeneous appearance as cracks, pits and rough surfaces. FTIR measurements prove the increase in free amino groups on the surface of protease treated polyamide. At the same time, treated fabric shows good physical and mechanical properties. It is also observed that the loss of strength of treated fabric is 6%. Air permeability increases and static charges reduce. Bacillus isolate 16P is chosen for economic production of polyamide surface modifying protease enzyme using 14 agro-industrial by-products as growth media. The highest protease production (175 U/mL) is achieved in media containing 6% linen meal at pH 7, after 72 h incubation period. Addition of KCl to linen meal medium enhances the protease production to about 18%.
Page(s): 273-279
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Source:IJFTR Vol.37(3) [September 2012]

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