title: Optimization of extraction, antioxidant activity and functional properties of quince seed mucilage by RSM.
abstract: The effect of extraction temperature (25-65°C), extraction time (5-25 min) and water to seed ratio (10:1-50:1) on yield, protein content, turbidity, viscosity, antioxidant activity, emulsion stability and foam stability of quince seed mucilage was investigated using response surface methodology (RSM). Experiments were designed according to Central Composite Face Center Design with these seven factors, including central and axial points. Numerical optimization determined the optimum extraction conditions based on the highest yield, viscosity, antioxidant activity, emulsion stability and foam stability and the lowest protein content and turbidity as being time 5 min, temperature 65°C and water to seed ratio 25.1:1. At this optimum point, extraction yield, protein content, turbidity, viscosity, antioxidant activity, emulsion stability and foam stability were found to be 11.58 (%), 2.71 (%), 068 (Å), 1473.96 (mPas), 29.88 (%), 94.89 (%) and 21.36 (%), respectively. The results demonstrated that quince seed mucilage had desirable antioxidant activity, viscosity, emulsifying and foaming properties.
authors.affiliation: Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, Iran. Electronic address: m.jouki@yahoo.com.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Jouki
authors.affiliation: Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, Iran.
authors.forename: Seyed Ali
authors.initials: SA
authors.lastname: Mortazavi
authors.affiliation: Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, Iran.
authors.forename: Farideh Tabatabaei
authors.initials: FT
authors.lastname: Yazdi
authors.affiliation: Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, Iran.
authors.forename: Arash
authors.initials: A
authors.lastname: Koocheki
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000494:pharmacology*; D004655:Emulsions / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology; D062087:Plant Mucilage / Q000737:chemistry* / Q000494:pharmacology*; D027824:Rosaceae / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D013696:Temperature; D014783:Viscosity; D014867:Water / Q000737:chemistry
chemical_list: D000975:Antioxidants; D004655:Emulsions; D010936:Plant Extracts; D062087:Plant Mucilage; D014867:Water
keywords: Emulsion stability; Mucilage extraction; Optimization.