id	keyword
eurjchem-2341	chitosan
eurjchem-2341	fcs
eurjchem-2341	weight
eurjchem-2341	films
eurjchem-2341	acid
eurjchem-2341	properties
eurjchem-2341	surface
eurjchem-2341	fraction
eurjchem-2341	pva
eurjchem-2341	chemistry