The Study of Biodegradation Kinetics of Starch Based on Coating in Controlled Released Fertilizer (CRF)

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The aim of this study is to prepare a starch film and analyze its characteristics in different pH condition. Starch has been given great attention and has been actively investigated to be used as coating materials for CRF because of its degradation properties. Once the analysis on the starch characteristics is completed, the reaction rate of the starch can be developed by using Michaelis-Menten equation as reference. The results of the reaction rate are important to help determine the biodegradation kinetics of the starch. It will also assist in determining the conditions needed to produce the starch film in order to reduce the release rate of fertilizer. Throughout this study, the biodegradation kinetics of starch film will be investigated and thus providing a reference for the selection of coating material for the application of CRF while improving agriculture production.

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240-248

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February 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Chapter 14 Enzyme Kinetics. Retrieved from http: /web. virginia. edu/Heidi/chapter14/chp14. htm.

Google Scholar

[2] Q.A. Chen, W. Q. Zhang and W.J. Lu, in: Study on biodegradable chitosan coating materials of fertilizers of fertilizers. Polym. Mat. Sci. Eng., 21, 290-293 (2005).

Google Scholar

[3] P. Cinelli, A. Corti and R. Solaro, in: Biodegradation of poly (vinyl alcohol) based blown films under different environmental conditions. Polym. Degrad. Stability, 64, 305-312 (1990).

DOI: 10.1016/s0141-3910(98)00206-7

Google Scholar

[4] X. Han, S. Chen and X. Hu, in: Controlled-release fertilizer encapsulated by starch/polyvinyl alcohol coating. Desalination 240, 21-26 (2009).

DOI: 10.1016/j.desal.2008.01.047

Google Scholar

[5] T. Jamnongkan and S. Kaewpirom in: Controlled-release fertilizer based on chitosan hydrogel: phosphorus release kinetics. Science Journal, UBU, 1(1), 43-50 (2010).

Google Scholar

[6] G. Jeroen in: Statistical Analysis of the Michaelis-Menten Equation. Biometrics 43, 793-80 (1987).

Google Scholar

[7] P. Krieg, B. Lendl, R. Vonach, and R. Kellner in: Determination of α-amylases activity using Fourier transform infrared spectroscopy. Fresenius J. Anal. Chem. 356, 504-5-7 (1996).

DOI: 10.1007/s0021663560504

Google Scholar

[8] J.B. Lambert, H.F. Shurvell, D.A. Lightner, et al in: Organic Structural Spectroscopy. Prentice Hall, Inc ISBN 0-13-258690-8 (1998).

Google Scholar

[9] R. Liang, M. Liu, and L. Wu in: Controlled-release NPK compound fertilizer with the function of water retention. Reactive and Functional Polymers, 67, 769-79 (2007).

DOI: 10.1016/j.reactfunctpolym.2006.12.007

Google Scholar

[10] D.R. Lu, C.M. Xiao, and S.J. Xu in: Starch-based completely biodegradable polymer materials. eXPRESS Polymer Letter , 3(6), 366-375 (2009).

DOI: 10.3144/expresspolymlett.2009.46

Google Scholar

[11] Malaysia's first premium grade controlled-release fertilizer. Retrieved from http: /www. skspecialties. com. my.

Google Scholar

[12] B. Ni, M. Liu, and S. Lu in: Multifunctional slow-release urea fertilizer from ethylcellulose and superabsorbent coated formulations. Chemical Engineering Journal 155, 892-898 (2009).

DOI: 10.1016/j.cej.2009.08.025

Google Scholar

[13] D. Northdrop in: On the meaning of Km and V/Km in enzymatic kinetics. J. Chem. Edu. 75(9), 1153-1157 (1998).

Google Scholar

[14] G.C. Okpokwasili and C.O. Nweke in: Microbial growth and substrate utilization kinetics. African Journal of Biotechnology 5(4), 305-317 (2005).

Google Scholar