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Chemosphere

Title:		Changes in microbial communities during volatile fatty acid production from cyanobacterial biomass harvested from a cyanobacterial bloom in a river
Author(s):		Cho HU; Kim YM; Park JM;
Address:		"School of Environmental Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea; Bioenergy Research Center, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea. School of Earth Sciences and Environmental Engineering, Gwang-ju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwang-ju 61005, Republic of Korea. Electronic address: youngmo@gist.ac.kr. School of Environmental Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea; Bioenergy Research Center, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea; Department of Chemical Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea; Division of Advanced Nuclear Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea. Electronic address: jmpark@postech.ac.kr"
Journal Title:		Chemosphere
Year:		2018
Volume:		20180320
Issue:
Page Number:		306 - 311
DOI:		10.1016/j.chemosphere.2018.03.099
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"Volatile fatty acid (VFA) production, utilization of soluble organic compounds, and associated microbial consortia were investigated after different pretreatments (untreated, alkaline, and thermal-alkaline) using cyanobacterial biomass as a substrate. Compared to the untreated control, soluble carbohydrate concentrations were almost the same after alkaline and thermal-alkaline pretreatments, but soluble protein concentration was 1.58 times higher after alkaline pretreatment and 1.81 times higher after thermal-alkaline pretreatment. However, the highest degree of acidification was obtained after alkaline pretreatment (55.36?ª++/-?ª+3.00%). Microbial communities in the untreated control differed only slightly from those after thermal-alkaline pretreatment, but were clearly distinct from those after alkaline pretreatment. After alkaline pretreatment, protein-utilizing bacteria became relatively predominant. These results revealed the relationships between efficiency of VFA production and the shift in microbial community"
Keywords:		"*Biomass Cyanobacteria/growth & development/*metabolism Fatty Acids, Volatile/*metabolism Fermentation Microbial Consortia/*physiology Rivers/*microbiology Anaerobic fermentation Cyanobacteria Microbial community Pretreatment Volatile fatty acid productio;"
Notes:		"MedlineCho, Hyun Uk Kim, Young Mo Park, Jong Moon eng England 2018/03/25 Chemosphere. 2018 Jul; 202:306-311. doi: 10.1016/j.chemosphere.2018.03.099. Epub 2018 Mar 20"