id	keyword
american_scientific_journal-5560	activity
american_scientific_journal-5560	daidzein
american_scientific_journal-5560	soybean
american_scientific_journal-5560	extract
american_scientific_journal-5560	test
american_scientific_journal-5560	collagenase
american_scientific_journal-5560	antioxidant
american_scientific_journal-5560	frap
american_scientific_journal-5560	ethanol