Model of Phanerochaete chrysosporium Growth and Multisubstrate Degradation on the Biological Pretreatment of Water Hyacinth

Abstract:

A mathematical model was developed to predict the kinetics of Phanerochaete Chrysosporium growth and degradation of multisubstrate on a batch process with limited oxygen conditions, that of the effects the initial moisture content (IMC). The study was conducted on the pretreatment of water hyacinth (WH), to degrade the lignin in order to prepare the WH as a bioethanol feedstock. In this pretreatment, the fungus was inoculated on WH where it grew on the surface of the WH. The fungus consumed three different substrates contained in WH as carbon source, i.e. lignin, cellulose and hemicellulose. Experimental data are used to formulate multisubstrate degradation and fungal growth influenced by the IMC. The constant of fungal growth (μ) is influenced by the amount of the initial moisture content (IMC) following the equation with μ_max value of 0.6887 day^-1, K_SL reached 0.7967 g.g dry weight^-1, K_sS is 0.7102 g.g dry weight^-1, K_sH is 0.1965 g.g dry weight^-1, Y_x/sL is 0.13 g.g dry weight of lignin^-1, Y_x/sS is 0.8560 g.g dry weight of cellulose^-1, Y_x/sH is 0.8999 g.g dry weight of hemicellulose^-1 and the maximum of IMC (W_m) is 0.67 or 67%.

• Periodical: Advanced Materials Research (Volume 1101)
• Pages: 280-285
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1101.280
• Online since: April 2015
• Authors: Eka Sari*, Siti Syamsiah, Hary Sulistyo, Muslikhin Hidayat
• Keywords: Growth, Initial Moisture Content (IMC), Multisubstrate Model, Phanerochaete chrysosporium

References

[1] M.J. Taherzadeh, and K. Karimi, (2008). Pretreatment of Lignocellulosic Waste to Improve Ethanol and Biogas Production : A Review. Internasional Journal of Molecular Science , 9, 1621-1651, 9: 1621-1651, ISSN 1422-0067.

DOI: 10.3390/ijms9091621

[2] H.W. Blance., D.S. Clark., Biochemical Engineering. Marcell Dekker Inc, New York, (1997).

[3] H. Beyenal and A. Tanyolac., (1997). Combined growth model of Zoogloea ramigera including multisubstrate, pH, and agitation effects. Enzyme Microbial Technology, 21: 74-78.

DOI: 10.1016/s0141-0229(96)00248-7

[4] D. Mitchell, O.F.V. Meien, N. Krieger, F.D.H. Dalsenter., (2004). A Review of Recent Developments in modeling of Microbial Growth kinetic and Intraparticles Phenomena in Solid State Fermentation, Biochemical Engineering Journal, 17: 15-26.

DOI: 10.1016/s1369-703x(03)00120-7

[5] Eka-Sari, S. Syamsiah, M. Hidayat, H. Sulistyo., (2014).

[6] J. Shi., R.R. Sharma-Shivappa., M.S. Chinn., (2012).

[7] C. Wan., (2011) Microbial Pretreatment of Lignocellulosic Biomass with Ceriporiopsis Subvermispora for Enzymatic Hydrolysis and Ethanol Production. The Ohio State University, Ohio.