Title: Extraction of Soybean Isoflavone Assisted by Ultrasonic Wave
Abstract: Different methods of extracting soybean isoflavone with or without ultrasonic wave and stirring were compared. The results of orthogonal experiment indicated that the yield and content of soybean isoflavone in the extracts were 4 23 mg/g and 2 74%,and raised 3 93% and 7 87% compared with simple ethanol extraction,respectively,when the defatted soybean flakes were soaked in 50% ethanol solution 6 times as much as the weight of raw meterial for 60 minutes at 60℃ under ultrasonic conditions (25 kHz,160 W).The yield for soybean isoflavone amounted to 4 36 mg/g,and increased 3 07% compared with ultrasonic wave extraction by ultrasonic wave and stirring under the same conditions.These methods have no significant effects on antioxidative activities of soybean isoflavone.
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
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