Enhanced hydrogen production from xylose and bamboo stalk hydrolysate by overexpression of xylulokinase and xylose isomerase in Klebsiella oxytoca HP1

National Nature Science Foundation of China [31170760]; Key Project of International Collaboration of Science and Technology [2009DFA60930]; Natural Science Foundation of Fujian Province of China [2011J01219, 2013J01146]; Inventions and Innovation of Fujian, China [(2009)1111]