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Research Journals >
Indian Journal of Biotechnology (IJBT) >
IJBT Vol.11 [2012] >
IJBT Vol.11(3) [July 2012] >
| Title: | Leather bioprocess intensification: Ultrasound assisted novel enzymatic hair-loosening system for leather processing |
| Authors: | Sivakumar, Venkatasubramanian
Kumar, Deepak
Kumar, Randhir
Kumar, Raushan |
| Keywords: | Animal skin
Bio-processing
Enzymatic process
Diffusion
Hair-loosening
Leather processing
Sonochemistry
Ultrasound |
| Issue Date: | Jul-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The use of enzymes for hair loosening in leather processing provides a
cleaner option. However, there is need to improve the efficiency of these unit
operations involving bioprocess by way of process intensification techniques,
such as, the use of ultrasound. In this paper, the use of ultrasound has been
studied in native enzyme papain (A)
based hair-loosening system and compared with commercially available enzyme Microdep-C (B), combination of enzyme
system (A+B) and conventional Na2S system. Various process
parameters, such as, enzyme concentration, time and ultrasound power on the
hair-loosening efficacy, were studied. Enzyme concentration (5-6%) and
ultrasound (100 W) were found to give better hair loosening under given process
conditions. The results indicated that papain
based unhairing system was better and the use of ultrasound provided better
hair-loosening efficacy. The reason for the ultrasound driven enhancement could
be due to better diffusion of enzymes through skin matrix to reach the
hair-bulb cite for interaction and dispersion of unhairing formulation
employed. Thus, the present process provides novel, eco-friendly, enzymatic
unhairing system in leather processing based on native enzyme or a combination
of enzyme system.
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| Page(s): | 326-329 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0967 (Online); 0972-5849 (Print) |
| Source: | IJBT Vol.11(3) [July 2012]
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