Oh, Hyun Ju Kim, Ki-Yeon Lee, Kyung Min Lee, Sun-Mi Gong, Gyeongtaek Oh, Min-Kyu Um, Youngsoon 2024-01-19T21:01:37Z 2024-01-19T21:01:37Z 2021-09-02 2019-02 0960-8524 https://pubs.kist.re.kr/handle/201004/120438 A brown alga Saccharina japonica and rice straw are attractive feedstock for microbial butyric acid production. However, inefficient fermentation of mannitol (a dominant component in S. japonica) and toxicity of inhibitors in lignocellulosic hydrolysate are limitations. This study demonstrated that mixed biomass with S. japonica and rice straw was effective in butyric acid production over those restrictions. Mannitol was consumed only when acetic acid was present. Notably, acetic acid was not produced but consumed along with mannitol. By mixing S. japonica and rice straw to take advantage of glucose and acetic acid in rice straw, Clostridium tyrobutyricum effectively consumed mannitol by utilizing acetic acid in hydrolysate and acetic acid derived from glucose with the enhanced butyric acid production. Furthermore, cell growth was restored owing to the decreased inhibitor concentration. The results demonstrate the potential of butyric acid production from mixed biomass of macroalgae/lignocellulose overcoming the drawbacks of single biomass. English Elsevier BV Enhanced butyric acid production using mixed biomass of brown algae and rice straw by Clostridium tyrobutyricum ATCC25755 Article 10.1016/j.biortech.2018.11.037 1 Bioresource Technology, v.273, pp.446 - 453 Bioresource Technology 273 446 453 N scie scopus 000453742100055 2-s2.0-85056748717 Agricultural Engineering Biotechnology & Applied Microbiology Energy & Fuels Agriculture Biotechnology & Applied Microbiology Energy & Fuels Article ANAEROBIC FERMENTATION MACROALGAE HYDROLYSATE SUGARS JAPONICA GLUCOSE Brown algae Saccharina japonica Laminaria japonica Rice straw Clostridium tyrobutyricum Butyric acid