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ARS Home » Southeast Area » New Orleans, Louisiana » Southern Regional Research Center » Commodity Utilization Research » Research » Publications at this Location » Publication #228887
Title: Low Intensity Uniform Ultrasound Accelerates Enzymatic Hydrolysis of Cellulose Plant Matter

Author
item Klasson, K Thomas
item Yachmenev, Valeriy
item Condon, Brian
item Lambert, Allan
item Delhom, Chris

Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 7/7/2008
Publication Date: 8/24/2008
Citation: Klasson, K.T., Yachmenev, V., Condon, B.D., Lambert, A.H., Delhom, C.D. 2008. Low Intensity Uniform Ultrasound Accelerates Enzymatic Hydrolysis of Cellulose Plant Matter. In: E. Sevim, T. McKeon, editors. Proceedings of the United States-Japan UJNR Cooperative Program in Natural Resources, August 24-28, 2008, Chicago, Illinois. p. 50-51. . Meeting .

Interpretive Summary: The work reported here is based on acceleration of enzymatic hydrolysis of plant biomass substrate by introduction of low intensity, uniform ultrasound field into a reaction chamber (bio-reactor). This method may serve as an improvement of rates in the hydrolysis of cellulosic materials to sugars, which in turn may be converted to biofuel ethanol in a fermentation step. In experiments, corn stover was contacted with a buffered enzyme solution in a reactor capable of delivering a uniform sonication of cellulosic materials. The results showed that the average improvement rate was 38%. A mathematical model was used to define the effectiveness factor.

Technical Abstract: The work reported here is based on acceleration of enzymatic hydrolysis of plant biomass substrate by introduction of low intensity, uniform ultrasound field into a reaction chamber (bio-reactor). This method may serve as an improvement of rates in the hydrolysis of cellulosic materials to sugars, which in turn may be converted to biofuel ethanol in a fermentation step. In experiments, corn stover was contacted with a buffered enzyme solution in a reactor capable of delivering a uniform sonication of cellulosic materials. The results showed that the average improvement rate was 38%. A mathematical model was used to define the effectiveness factor.