id	keyword
brj-23715	et al
brj-23715	pulp
brj-23715	beating
brj-23715	treatment
brj-23715	pre
brj-23715	enzymes
brj-23715	upkp
brj-23715	paper
brj-23715	effect
brj-23715	strength
brj-23715	refining
brj-23715	properties