id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-279281-gh298gaa	Zannou, Oscar	Recovery and Stabilization of Anthocyanins and Phenolic Antioxidants of Roselle (Hibiscus sabdariffa L.) with Hydrophilic Deep Eutectic Solvents	2020-08-14		.txt	text/plain	8462	463	51	A natural hydrophilic DES constituted of sodium acetate (hydrogen bond acceptor) and formic acid (hydrogen bond donor) designed to evaluate the total phenolic compound (TPC), total flavonoid (TFC), total anthocyanin (TACN), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging and ferric reducing antioxidant power (FRAP) values of Roselle. Nonetheless, C-H stretching weakened upon addition of water and disappeared completely in SAFAm. In the present study, sodium acetate:formic acid (1:2 molar ratio) was employed as a natural DES and coded as SAFA0 to extract polyphenolic compounds, especially anthocyanins and to evaluate the antioxidant activity of Roselle calyces. The reduced second-order models in terms of actual factors for the responses such as TPC, TFC, TACN, FRAP and DPPH radical scavenging values of Roselle calyces as a function of molarity ratio (X 1 ), additional water (X 2 ) and solvent to solid ratio (X 3 ) were obtained as follows: These equations showed up the response patterns for individual measurement and intricacy of sceneries.	./cache/cord-279281-gh298gaa.txt	./txt/cord-279281-gh298gaa.txt