Publisher : Asian Australasian Association of Animal Production Societies
DOI : 10.5713/ajas.2007.214
Title & Authors
The Use of Fungal Inoculants in the Ensiling of Potato Pulp: Effect of Temperature and Duration of Storage on Silage Fermentation Characteristics Okine, A; Aibibula, Y.; Hanada, M.; Okamoto, M.;
A factorial design experiment was conducted to investigate the effect of temperature and duration of storage on the fermentation quality of potato pulp ensiled with two fungal inoculants under laboratory conditions. The inoculants, Rhizopus oryzae (R) and Amylomyces rouxii (A) were each added to potato pulp material to contain at least CFU/g fresh matter, and silages without additives served as controls. The silages were stored under three temperature regimes; 4, 12 and . Three silos per treatment from every temperature regime were opened on days 7, 24 and 40 days after ensiling to investigate treatment effects on fermentation quality, starch and sugar concentrations. Increase in temperature and duration of storage had a positive significant effect (p<0.01) on the fermentation quality of potato pulp silage (PPS). The inoculants had little effect (p>0.05) on the fermentation quality of the silages. Sugar concentration in the silages decreased with increase in temperature (p<0.01) but increased (p<0.05) with progression of duration of storage. The fungal inoculants had no effect on starch degradation in PPS. The results suggest that storage temperature and duration of storage are more important in determining the rate of fermentation than addition of the fungal inoculants in PPS.
Amylomyces Rouxii;Potato Pulp;Rhizopus Oryzae;Temperature;Duration of Storage;
Effect of Replacing Rolled Corn with Potato Pulp Silage in Grass Silage-based Diets on Nitrogen Utilization by Steers,Aibibula, Y.;Okine, A.;Hanada, M.;Murata, S.;Okamoto, M.;Goto, M.;
Asian-Australasian Journal of Animal Sciences, 2007. vol.20. 8, pp.1215-1221
Abe, A. 1988. Feed analyses based on carbohydrates and application to the nutritive value of feeds. In: Feed Quality Evaluation Guidebook 2001. Japan Grassland, Livestock and Seed Association. pp. 16-18.
Abe, A., I. Sujaya, T. Sone, K. Asana and Y. Oda. 2004. Microflora and selected metabolites of potato pulp fermented with an Indonesian starter Ragi Tape. Food Technol. Biotechnol. 42:169-173.
Abe, A., T. Sone, I. N. Sujaya, K. Saito, Y. Oda, K. Asano and F. Tomita. 2003. rDNA ITS sequence of Rhizopus oryzae: Its application to classification and identification of lactic acid producers. Biosc. Biotechnol. Biochem. 67(8):1725-1731.
Aibibula, Y., M. Hanada, O. Abdulrazak, S. Murata and M. Okamoto. 2004. Effect of potato pulp supplementation on nitrogen utilization in ruminants. In: Proceedings of the 11 th. Animal Science Congress, Kuala Lumpur, Malaysia. pp. 331-333.
Ashbell, G., T. Kipnis, M. Titterton, Y. Hen, A. Azrieli and Z. G. Weinberg. 2001. Examination of a technology for silage making in plastic bags. Anim. Feed Sci. Tech. 91:213-222.
Baker, S. B. and W. H. Summerson. 1961. The colorimetric determination of lactic acid in biological material. J. Biol. Chem. 38:535-554.
De Man, J. C. 1957. The fermentation of cell wall substances in grass silage and in potato pulp. Antonie van Leeuwenhoek. 23:87-96.
Erdogan, E. H. and S. A. Mahinur. 2001. RT-PCR amplification of a Rhizopus oryzae lactate dehydrogenase gene fragment. Enzyme Microbial Technol. 28:259-264.
Gordon, F. J. 1989. An evaluation through lactating cattle of a bacterial inoculant as an additive for grass silage. Grass Forage Sci. 44:169-179.
Guan Wu-tai, G., Ashbell, Y. Hen and Z. W. Weinberg. 2002. The effects of two inoculants applied to forage sorghum at ensiling on silage characteristics. Asian-Aust. J. Anim. Sci. 15(2):218- 221.
Hachmeister, K. A. and D. Y. C. Fung. 1993. Tempeh: A moldmodified indigenous fermented food made from soybeans and/or cereal grains. Crit. Rev. Microbiol. 19:137-188.
Mayer, F. and J. O. Hillebrandt. 1997. Potato pulp: Microbial characterization, physical modification, and application of this agricultural waste product. Appl. Microbiol. Biotechnol. 48:435-440.
Meeske, R., H. M. Basson and C. W. Cruywagen. 1999. The effect of lactic acid bacteria with enzymes on the fermentation dynamics, intake and digestibility of Digitaria eriantha silage. Anim. Feed Sci. Tech. 81:237-248.
McDonald, P., A. R. Henderson and S. J. E Heron. 1991. Microorganisms. In: The Biochemistry of Silage 2 nd edition. Chalcome Publicatons, Aberystwyth. pp. 81-152.
Monteils, V., S. Jurjanz, O. Colin-Schoelien, G. Blanchart and F. Laurent. 2002. Kinetics of ruminal degradation of wheat and potato starches in total mixed rations. J. Anim. Sci. 80:235-241.
Nguyen, H. V., M. Kawai, J. Takahashi and S. Matsouka. 2004. Change in nitrogen fractions and ruminal nitrogen degradability of orchardgrass and alfalfa during the ensiling process and the subsequent effects on nitrogen utilization by sheep. Asian-Aust. J. Anim. Sci. 17(11):1524-1528.
Oda, Y., K. Saito, H. Yamauchi and M. Mori. 2002. Lactic acid fermentation of potato pulp by the fungus Rhizopus oryzae. Current Microbiol. 45:1-4.
Okine, A., M. Hanada, Y.Aibibula and M. Okamoto. 2005. Ensiling of potato pulp with or without bacterial inoculants and its effect on fermentation quality, nutrient composition and nutritive value. Anim. Feed Sci. Tech. 121:329-343.
SAS Institute Inc. 1996. SAS/STAT User's Guide: 6th edn. SAS Institute Inc., Cary, North Carolina.
Saito, K., T. Noda, S. Tsuda, M. Mori, Y. Hasa, H. Kito and Y. Oda. 2006. Effects of the dates of extraction on the quality of potato pulp. Bioresc. Technol. 97(18): 2470-2473.
Skory, C. D. 2000. Isolation and Expression of Lactate Dehydrogenase genes from Rhizopus oryzae. Appl. Environ. Microbiol. 66:2343-2348.
Skory, C. D., S. N. Freer and R. J. Bothast. 1998. Production of Llactic acid by Rhizopus oryzae under oxygen limiting conditions. Biotechnol. Lett. 20:191-194.