id	keyword
brj-22451	pre
brj-22451	extraction
brj-22451	corn
brj-22451	stalks
brj-22451	pulp
brj-22451	lignin
brj-22451	water
brj-22451	xylan
brj-22451	alkali
brj-22451	xylose
brj-22451	tappi
brj-22451	alkaline