id	keyword
american_scientific_journal-5716	pineapple
american_scientific_journal-5716	ethanol
american_scientific_journal-5716	extract
american_scientific_journal-5716	core
american_scientific_journal-5716	activity
american_scientific_journal-5716	luteolin
american_scientific_journal-5716	elastase
american_scientific_journal-5716	concentration
american_scientific_journal-5716	ethanol extract