id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-4658		cet-4658		6	.pdf	application/pdf	3768	134	43	Papagianni M., 2007, Advances in citric acid fermentation by Aspergillus niger: Biochemical aspects, membrane transport and modeling, Biotechnology advances, 25(3), 244 - 263. A significant increase of citric acid concentration was observed as the initial of fermentation medium was increasing from pH 2 - 3.	cache/cet-4658.pdf	txt/cet-4658.txt