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http://dx.doi.org/10.17137/korrae.2015.23.2.053

Optimization of growth conditions for cultivation of Phellinus linteus mycelia using swine waste as a growth substrate  

Koo, Taewoan (School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH))
Lee, Joonyeob (School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH))
Cho, Kyungjin (School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH))
Lee, Jangwoo (School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH))
Shin, Seung Gu (School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH))
Hwang, Seokhwan (School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH))
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.23, no.2, 2015 , pp. 53-60 More about this Journal
Abstract
Newly, nutrients recovery by bioconversion in the swine waste which caused serious problems due to its high organic fraction and content of nutrients such as phosphorus and nitrogen is viewed as a considerable approach since it produces valuable product as well as recycling of resources. Consequently, it is necessary to find new methods to treat swine waste. One possible solution to this problem is to use this potential pollutant as a growth substrate for economically valuable products. The study for the fundamental improvement of bioconversion efficiency by finding optimum growth conditions using statistical models and biotechnology was performed. A novel approach to utilize swine waste by cultivating mycelia of the mushroom Phellinus linteus are described. A central composite face-centered design (CCF) for the experiments was used to develop empirical model providing a quantitative interpretation of the relationships among the three variables, which were substrate concentration, pH, and temperature. The maximal radial extension rate (2.78mm/d) of P.linteus was determined under the condition of 5.0 g COD/L, pH 5.0, and temperature $29.7^{\circ}C$. The results of this study suggest that swine waste could be utilized as a growth substrate for the cultivation of mushroom mycelia enhancing an efficiency of utilizing this by-product of the livestock industry.
Keywords
Optimization; Bioconversion; Response surface analysis; Phellinus linteus;
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