Parvin SHAWRANG, Abbas MAJDABADI, Ali Asghar SADEGHI

Changes in cell wall compositions and degradation kinetics of electron beam-irradiated sugarcane bagasse

Electron beam irradiation of sugarcane bagasse at doses of 250 and 500 kGy could change its cell wall composition and ruminal fiber degradation characteristics by breaking off the lignocellulosic bonds. Nylon bags of untreated or electron beam-irradiated bagasse were suspended in the rumen of 3 fistulated rams for up to 72 h, and the resulting data were fitted to a nonlinear degradation model to calculate the degradation parameters of dry matter (DM) and neutral detergent fiber (NDF). Irradiation had no effect on crude protein, ether extract, and ash, but resulted in a linear decrease of the cell wall contents. An increasing electron beam irradiation dose linearly increased the water soluble fraction, degradable fraction, degradation rate, and effective degradability of the DM and NDF (P < 0.001 for all). At doses of 250 and 500 kGy, the effective degradability of the NDF at a ruminal passage rate of 0.05/h increased by 11% and 20%, respectively, compared to the untreated sample. In conclusion, electron beam irradiation can be used to improve the nutritive value of roughages in ruminant nutrition.

Anahtar Kelimeler:

Key words: Electron beam irradiation, fiber, ruminal degradation, sugarcane bagasse

Changes in cell wall compositions and degradation kinetics of electron beam-irradiated sugarcane bagasse

Keywords:

Key words: Electron beam irradiation, fiber, ruminal degradation, sugarcane bagasse,

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Zhao, X., Peng, F., Cheng, K., Liu, D.: Enhancement of the enzymatic digestibility of sugarcane bagasse by alkali-peracetic acid pretreatment. Enz. Microb. Technol., 2009; 44: 17-23. 2. da Silva, A.S., Inoue, H., Endo, T., Yano, S., Bon, E.P.: Milling pretreatment of sugarcane bagasse and straw for enzymatic hydrolysis and ethanol fermentation. Bioresour. Technol., 2010; 101: 7402-7409. 3. Laopaiboon, P., Th ani, A., Leelavatcharamas, V., Laopaiboon, L.: Acid hydrolysis of sugarcane bagasse for lactic acid production. Bioresour. Technol., 2010; 101: 1036-1043.
Castro, F.B., Machado, P.F.: Feeding value of steam treated sugarcane bagasse in ruminant rations. Livest. Res. Rural Dev., 1990; 2: 8-12.
Shawrang, P., Nikkhah, A., Zare-Shahneh, A., Sadeghi, A.A., Raisali, G., Moradi-Shahrebabak, M.: Eff ects of γ-irradiation on chemical composition and ruminal protein degradation of canola meal. Radiat. Phys. Chem., 2008; 77: 918-922.
Bouchard, J., Méthot, M., Jordan, B.: Th e eff ects of ionizing radiation on the cellulose of wood free paper. Cellulose, 2006; 13: 601-610.
ISO/ASTM: Practice for Use of a Cellulose Triacetate Dosimetry System. ISO/ASTM 51650. ASTM International, West Conshohocken, PA, USA. 2005.
Ørskov, E.R., McDonald, I.: Th e estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. J. Agric. Sci., 1979; 92: 499-503.
AOAC: Offi cial Methods of Analysis, 16th ed. Association of Offi cial Analytical Chemists, Arlington, VA, USA. 1995.
Van Soest, P.J., Robertson, J.B., Lewis, B.A.: Methods for dietary fi ber, neutral detergent fi ber and nonstarch polysaccharides in relation to animal nutrition. J. Dairy Sci., 1991; 74: 3583-3597.
SAS Institute, Inc.: Statistical Analysis System (SAS) User’s Guide. SAS Institute, Cary, NC, USA. 1996.
Steel, R.G.D., Torrie, J.H.: Principles and Procedures of Statistics: A Biometrical Approach. 2nd edn., McGraw-Hill, New York, USA. 1980.
Flachowsky, G., Bär, M., Zuber, S., Tiroke, K.: Cell wall content and rumen dry matter disappearance of γ-irradiated wood by products. Biol. Wastes, 1990; 34: 181-189.
Gralak, M.A., Mahmood, S., Barej, W.: Rumen degradability of dry matter and crude fi bre of irradiated and sodium hydroxide treated straws. Arch Tierernahr., 1994; 47: 63-74.
Sandev, S., Karaivanov, I.: Th e composition and digestibility of irradiated roughage treatment with gamma irradiation. Tierernahr. Fuetterung, 1977; 10: 238-242.
Banchorndhevakul, S.: Eff ect of urea and urea-gamma treatments on cellulose degradation of Th ai rice straw and corn stalk. Radiat. Phys. Chem., 2002; 64: 417-422.
Leonhardt, J.W., Henning, A., Nehring, K., Baer, M., Flachowsky, G., Wolf, I.: Proceeding for Nuclear Techniques for Assessing and Improving Ruminant Feeds. FAO/IAEA, Vienna. 1983.
Yang, C., Shen, Z., Yu, G., Wang, J.: Eff ect and aft ereff ect of gamma radiation pretreatment on enzymatic hydrolysis of wheat straw. Bioresour. Technol., 2008; 99: 6240-6245
Driscoll, M., Stipanovic, A., Winter, W., Cheng, K., Manning, M., Spiese, J., Galloway, R.A., Cleland, M.R.: Electron beam irradiation of cellulose. Radiat. Phys. Chem., 2009; 78: 539- 542.
Iller, E., Kukiełka, A., Stupińska, H., Mikołajczyk, W.: Electron- beam stimulation of the reactivity of cellulose pulps for production of derivatives. Radiat. Phys. Chem., 2002; 63: 253- 257.
Kasprzyk, H., Wichłacz, K., Borysiak, S.: Th e eff ect of gamma radiation on the supramolecular structure of pine wood cellulose in situ revealed by X-ray diff raction. Electron. J. Pol. Agric. Univ., 2004; 7: 234-242.
Alberti, A., Bertini, S., Gastaldi, G., Iannaccone, N., Macciantelli, D., Torri, G., Vismara, E.: Electron beam irradiated textile cellulose fi bres: ESR studies and derivatisation with glycidyl methacrylate (GMA). Eur. Polym. J., 2005; 41: 1787-1797.
Wasikiewicz, J.M., Yoshii, F., Nagasawa, N., Wach, R.A., Mitomo, H.: Degradation of chitosan and sodium alginate by gamma radiation, sonochemical and ultraviolet methods. Radiat. Phys. Chem., 2005; 73: 287-295.
Arora, D.S., Chander, M., Gill, P.K.: Involvement of lignin peroxide, manganese peroxide and laccase in the degradation and selective ligninolysis of wheat straw. Int. Biodet. Biodeg., 2002; 50: 115-120.