Optimization of Water-soluble Apple Polysaccharides Extraction Using Quadratic Orthogonal  Rotation Combination Design
MA Wen-jie1，GUO Yu-rong2,*，WEI Jue3
FOOD SCIENCE . 2009, (20): 105 -108 .  DOI: 10.7506/spkx1002-6300-200920018