Simultaneous Extraction of Protein and Polysaccharide from Porphyra yezoensis by Pulsed Ultrasound

Abstract

Abstract: Simultaneous extraction of protein and polysaccharide from Porphyra yezoensis by pulsed ultrasound was studied. By single factor and orthogonal test the optimum conditions are as follows: pump revolving speed 13 r/s, ultrasonic running time in a circle 1.5 s, ultrasonic interim time in a circle 2 s, ultrasonic power 720 W, extraction time 85 min, temperature 35 ℃ and material/solution ratio 15 mg/ml. By the above conditions, the extraction yield of polysaccharide is 35.065%, and the extraction yield of protein 45.728%.

Key words: Porphyra yezoensis, pulsed ultrasound, extraction, protein, polysaccharide

XIAO Hai-Fang, MA Hai-Le, ZHU Wen-Xue. Simultaneous Extraction of Protein and Polysaccharide from Porphyra yezoensis by Pulsed Ultrasound[J]. FOOD SCIENCE, 2007, 28(6): 127-131.

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Simultaneous Extraction of Protein and Polysaccharide from Porphyra yezoensis by Pulsed Ultrasound

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