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Abstract
This experiment was made of Porphyra haitanensis as raw material, extraction of pigment from Porphyra haitanensis by ultrasonic wave,the stability of the pigment was preliminarily studied, determine the best extractor and maximum absorption peak wavelength, the response surface analysis was used to optimize the four factors,the concentration of the extractant, the ratio of material to liquid, the temperature of extraction and the time of extraction.The results show that the optimum extraction agent for extraction of pigment from Porphyra haitanensis is ethanol,The maximum absorption wavelength is 580nm, the optimum extraction condition is 2% of the extractant concentration,the ratio of material to liquid is 1:50,the extraction temperature is 50°C,the extraction time is three hours.Under these conditions, the extraction rate of pigment from Porphyra haitanensis was 3.8%.
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1 Texture College, Jilin Agricultural Science and Technology College, Jilin 132101
2 College of Food Science and Engineering, Jilin Agricultural Science and Technology College, Jilin 132101