Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol. 17 Special Issue 2015; Page No.(85-89)

HYDROLYSIS KINETICS IN ANAEROBIC DIGESTION OF LEATHER FLESHING ENHANCED BY LIPASE AND SEQUENTIAL ENZYME PRODUCTION USING FLESHING FAT

C.H. RESHMA AND P. SHANMUGAM

Abstract

This paper describes the hydrolysis kinetics of leather fleshing waste using lipase for enhanced biogas production. The batch biochemical methane potential test was carried out in laboratory to estimate its reaction kinetics. The dual application of fleshing waste as substrate was used to produce a crude lipase and the same was used for enhanced biogas production at increased hydrolysis rate constant. The crude lipase was produced using Aspergillus brasiliensis in submerged fermentation was characterised by molecular weight determination and FTIR analysis. The lipase activity was optimised for the parameters like pH, temperature and activity in different substrates. The activity was high at pH 7-8 range, temperature was in the range of 30-40 °C and the activity was high in olive oil with 565 U/mL. The molecular weight determination of the ammonium sulphate precipitated lipase was found to be 50 KDa and the amide bond peak between the wave number ranges from 1600-1700 cm-1 in the FTIR spectrum confirms the enzyme produced is lipase. The maximum lipase activity using fleshing oil as substrate was 140 U/mL. The Vmax and Km determined by Line weaver Burk plot values were 116.28 g/L min-1 and 0.233 g/L .The pH optima for maximum gas production were recorded as 6.5. The hydrolytic rate constant model of the enzyme is performed using contios and first order kinetics. Maximum enzymatic hydrolysis rate constant for fleshing was measured and it was found to be 0.33 day-1. A significant level of biogas yield of 1.65 times was noticed in the enzyme hydrolysis than the normal hydrolysis. This study recommends the production and usage of lipase from leather fleshing for increased hydrolysis rate constant which enhances the biogas yield thereby a sustainable solution for solid waste management in tanning industry.

Enter your contact information below to receive full paper.
Your Name :
Email:
Phone:
City:
Cost of Full Paper: Rs.75 for Indian Nationals or $20 (USD) for international subscribers.
By clicking on Request Paper you Agree to pay the above mentioned cost per paper.
  
Journal Issues
Vol 22, Issue 2, 2020
Vol 22, Issue 1, 2020
Vol 21, Issue 4, 2019
Vol 21, Nov. Suppl. Issue, 2019
Vol 21, Issue 3, 2019
Vol 21, Issue 2, 2019
Vol 21, Issue 1, 2019
Vol 20, Dec. Suppl. No.2, 2018
Vol 20, Issue 4, 2018
Vol 20, Dec. Suppl. Issue, 2018
Vol 20, Oct Suppl. Issue, 2018
Vol 20, Issue 3, 2018
Vol 20, Issue 2, 2018
Vol 20, Issue 1, 2018
Vol 20, Feb. Suppl. Issue, 2018
Vol 19, Issue 4, 2017
Vol 19, Nov. Suppl, Issue 2017
Vol 19, Issue 3, 2017
Vol 19, Issue 2, 2017
Vol 19, Issue 1, 2017
Vol 18, Issue 4, 2016
Vol 18, Issue 3, 2016
Vol 18, Issue 2, 2016
Vol 18, Issue 1, 2016
Vol 17, Issue 4, 2015
Vol 17, Issue 3, 2015
Vol. 17 Special Issue 2015
Vol 17, Issue 2, 2015
Vol 17, Issue 1, 2015
Vol 16, Issue 4, 2014
Vol 16, Issue 3, 2014
Vol 16, Issue 2, 2014
Vol 16, Issue 1, 2014
Vol 15, Issue 4, 2013
Vol 15, Issue 3, 2013
Vol 15, Issue 2, 2013
Vol 15 Issue 1, 2013
Vol 14, Issue 4, 2012
Vol 14, Issue 3, 2012
Vol 14, Issue 2, 2012
Vol.14, Issue 1, 2012
Vol.13, Issue 4, 2011
Vol.13, Issue 3, 2011
Vol.13, Issue 2, 2011
Vol.13, Issue 1, 2011
Vol.12, Issue 4, 2010
Vol.12, Issue 3, 2010
Vol.12, Issue 2, 2010
Vol.12, Issue 1, 2010
Vol 11, Issue 4, 2009
Vol 11, Issue 3, 2009
Vol 11, Issue 2, 2009
Vol 11, Issue 1, 2009
Vol 10, Issue 4, 2008
Vol 10, Issue 3, 2008
Vol 10, Issue 3, 2008
Vol 10, Issue 2, 2008
Vol 10, Issue 1, 2008
Vol 9, Issue 4, 2007
Vol 9, Issue 3, 2007
Vol 9, Issue 2, 2007
Vol 9, Issue 1, 2007
Vol 8, Issue 4, 2006
Vol 8, Issue 3, 2006
Vol 08, Issue 2, 2006
Vol 08, Issue 1, 2006
Vol 7 Issue 4, 2005
Vol 07, Issue 3, 2005
Vol 07, Issue 2, 2005
Vol 6 Issue 4, 2004
Vol 6 Issue 3, 2004
Vol 6 Issue 2, 2004
Vol 6 Issue 1, 2004
Vol 5 Issue 3, 2003
Vol 5 Issue 2, 2003
Vol 04, Issue 4, 2002
Vol 04, Issue 1, 2002
Vol 3 Issue 1-2, 2001
Vol 1 Issue 1-2, 2000
Vol 1 Issue 3-4, 1999
Vol 1 Issue 1-2, 1999
Looking for Past Issues? Click here to get them!!