title: Use of Swine Wastewater as Alternative Substrate for Mycelial Bioconversion of White Rot Fungi.
abstract: Seven white rot fungal species were tested for growth as mycelia using swine wastewater (SW), an agro-waste with tremendous environmental footprint, as the sole nutrient source. The SW contained high concentrations of carbon and nitrogen components, which could support nutritional requirements for mycelial growth. Out of the seven species, Pleurotus ostreatus and Hericium erinaceus were successfully cultivated on the SW medium using solid-state fermentation. Response surface methodology was employed to determine the combination of pH, temperature (T), and substrate concentration (C) that maximizes mycelial growth rate (Kr) for the two species. The optimum condition was estimated as pH = 5.8, T = 28.8 °C, and C = 11.2 g chemical oxygen demand (COD)/L for P. ostreatus to yield Kr of 11.0 mm/day, whereas the greatest Kr (3.1 mm/day) was anticipated at pH = 4.6, T = 25.5 °C, and C = 11.9 g COD/L for H. erinaceus. These Kr values were comparable to growth rates obtained using other substrates in the literature. These results demonstrate that SW can be used as an effective substrate for mycelial cultivation of the two white rot fungal species, suggesting an alternative method to manage SW with the production of potentially valuable biomass.
authors.affiliation: School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 790-784, Republic of Korea.
authors.forename: Jangwoo
authors.initials: J
authors.lastname: Lee
authors.affiliation: School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 790-784, Republic of Korea.
authors.forename: Seung Gu
authors.initials: SG
authors.lastname: Shin
authors.affiliation: School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 790-784, Republic of Korea.|Division of Advanced Nuclear Engineering, POSTECH, 77, Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 790-784, Republic of Korea.
authors.forename: Jinmo
authors.initials: J
authors.lastname: Ahn
authors.affiliation: School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 790-784, Republic of Korea.
authors.forename: Gyuseong
authors.initials: G
authors.lastname: Han
authors.affiliation: Environmental Process Engineering Team, Global Engineering Division, GS E&C, 33, Jong-ro, Jongno-Gu, Seoul, 110-130, Republic of Korea.
authors.forename: Kwanghyun
authors.initials: K
authors.lastname: Hwang
authors.affiliation: Department of Environmental Engineering, Kyungpook National University, Daegu, South Korea.
authors.forename: Woong
authors.initials: W
authors.lastname: Kim
authors.affiliation: School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 790-784, Republic of Korea. shwang@postech.ac.kr.
authors.forename: Seokhwan
authors.initials: S
authors.lastname: Hwang
mesh_terms: D000818:Animals; D061249:Batch Cell Culture Techniques / Q000379:methods*; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology; D025282:Mycelium / Q000254:growth & development*; D020075:Phanerochaete / Q000254:growth & development* / Q000302:isolation & purification*; D013552:Swine / Q000382:microbiology*; D062065:Wastewater / Q000382:microbiology*
chemical_list: D062065:Wastewater
keywords: Bioconversion; Mycelium; Optimization; Response surface methodology; Solid-state fermentation; White rot fungi