id	keyword
brj-23308	hmf
brj-23308	biomass
brj-23308	production
brj-23308	et al
brj-23308	cellulose
brj-23308	conversion
brj-23308	waste
brj-23308	food
brj-23308	tea
brj-23308	acid
brj-23308	article
brj-23308	doi
brj-23308	yield