Enhancing the feasibility of Microcystis aeruginosa as a feedstock for bioethanol production under the influence of various factors
메타 데이터
바이오화학분류
바이오플라스틱
플라스틱
바이오정밀화학
용매
화학제품
연료
화장품용 기능성소재
계면활성제⁄증점제
의료용 화학소재
식품첨가제
논문
Enhancing the feasibility of Microcystis aeruginosa as a feedstock for bioethanol production under the influence of various factors
학술지
BioMed research international
저자명
Khan, Muhammad Imran; Lee, Moon Geon; Seo, Hyo Jin; Shin, Jin Hyuk; Shin, Tai Sun; Yoon, Yang Ho; Kim, Min Yong; Choi, Jong Il; Kim, Jong Deog
초록
<P><I>Microcystis aeruginosa</I>, a freshwater microalga, is capable of producing and accumulating different types of sugars in its biomass which make it a good feedstock for bioethanol production. Present study aims to investigate the effect of different factors increasing growth rate and carbohydrates productivity of<I> M. aeruginosa</I>. MF media (modified BG11 media) and additional ingredients such as aminolevulinic acid (2 mM), lysine (2.28 mM), alanine (1 mM), and Naphthalene acetic acid (1 mM) as cytokine promoted<I> M. aeruginosa</I> growth and sugar contents.<I> Salmonella</I> showed growth-assisting effect on<I> M. aeruginosa</I>. Enhanced growth rate and carbohydrates contents were observed in<I> M. aeruginosa</I> culture grown at 25°C under red LED light of 90 <I>μ</I>molm<SUP>−2</SUP>s<SUP>−1</SUP> intensity. More greenish and carbohydrates rich<I> M. aeruginosa</I> biomass was prepared (final OD<SUB>660 nm</SUB> = 2.21 and sugar contents 10.39 mM/mL) as compared to control (maximum OD<SUB>660 nm</SUB> = 1.4 and sugar contents 3 mM/mL). The final algae biomass was converted to algae juice through a specific pretreatment method. The resulted algae Juice was used as a substrate in fermentation process. Highest yield of bioethanol (50 mM/mL) was detected when<I> Brettanomyces custersainus</I>,<I> Saccharomyces cerevisiae</I>, and<I> Pichia stipitis</I> were used in combinations for fermentation process as compared to their individual fermentation. The results indicated the influence of different factors on the growth rate and carbohydrates productivity of<I> M. aeruginosa</I> and its feasibility as a feedstock for fermentative ethanol production.</P>