Evaluation of continuous biohydrogen production from enzymatically treated cornstalk hydrolysate》.pdfVIP

i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 3 8 ( 2 0 1 3 ) 1 5 1 0 0 e 1 5 1 0 4 Available online at journal homepage: /locate/he Short Communication Evaluation of continuous biohydrogen production from enzymatically treated cornstalk hydrolysate Lei Zhao a, Guang-Li Cao a,b,**, Ai-Jie Wang a, Hong-Yu Ren a, Nan-Qi Ren a,* a State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China b School of Life Science and Technology, Harbin Institute of Technology, Harbin 150090, China a r t i c l e i n f o a b s t r a c t Article history: Enzymatically treated cornstalk hydrolysate was tested as substrate for H2 production by Received 11 August 2013 Thermoanaerobacterium thermosaccharolyticum W16 in a continuous stirred tank reactor. The Received in revised form performance of strain W16 to ferment the main components of hydrolysate, mixture of 13 September 2013 glucose and xylose, in continuous culture was conducted at first, and then T. thermo- Accepted 16 September 2013 saccharolyticum W16 was evaluated to ferment fully enzymatically hydrolysed cornstalk to Available online 11 October 2013 produce H2 in continuous operation mode. At the dilution rate of 0.020 h1, the H2 yield and production rate reached a maximum of 1.9 mol H2 mol1 sugars and 8.4 mmol H2 L1 h1, Keywords: respectively, accompanied with the maximum glucose and xylose utilizations of 86.3% and Continuous H2 production 77.6%. Continuous H2 production from enzymatically tre