Application of low-intensity pulsed ultrasound to increase bio-ethanol production
메타 데이터
바이오화학분류
바이오플라스틱
플라스틱
바이오정밀화학
용매
화학제품
연료
화장품용 기능성소재
계면활성제⁄증점제
의료용 화학소재
식품첨가제
논문
Application of low-intensity pulsed ultrasound to increase bio-ethanol production
학술지
Renewable energy
저자명
Shaheen, M.; Choi, M.; Ang, W.; Zhao, Y.; Xing, J.; Yang, R.; Xing, J.; Zhang, J.; Chen, J.
초록
We explored the application of Low-Intensity Pulsed Ultrasound (LIPUS) technology to improve the metabolic activity of microorganisms. In this study we showed that LIPUS improves bio-ethanol production from lignocellulosic biomass. We determined specific LIPUS conditions to increase the metabolic activity of both the cellulose degrading fungus, Trichoderma reesei Rut C-30 and the ethanol producing yeast, Saccharomyces cerevisiae. LIPUS conditions of 1.5 MHz, 20% duty cycle, 80 mW/cm<SUP>2</SUP> intensity, 5 min exposure and 12 exposures per day were found to improve the activity of the organisms the most. These LIPUS treatment conditions increased cellulase production by T. reesei by 16 +/- 6%. The same LIPUS treatment conditions induced a 31 +/- 10% increase in ethanol production by S. cerevisiae which implies a cumulative improvement of 52 +/- 16% in lignocellulosic bio-ethanol production with LIPUS. This observation shows a new potential for LIPUS in the improvement of lignocellulosic bioethanol production to make it a sustainable energy source.