Analyses of Factors Affecting the Ultrasonically-enhanced Supercritical Fluid Extraction of EPA and DHA from Algae

Journal of South China University of Technology(Natural Science Edition) ›› 2004, Vol. 32 ›› Issue (4): 43-47.

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Analyses of Factors Affecting the Ultrasonically-enhanced Supercritical Fluid Extraction of EPA and DHA from Algae

Qiu Tai-qiu Ding Cai-mei Hu Ai-jun Yan Jie

College of Food and Biological EngineeringSouth China Univ．of Tech．Guangzhou510640GuangdongChina

Received:2003-09-26 Online:2004-04-20 Published:2015-09-08
Contact: Qiu Ta- i qiu （born in 1941）maleprofessorPh．D．tutormainly researches on sonochemistry technique． E-mail:scut.qiutaiqiu＠163.net
About author: Qiu Ta- i qiu （born in 1941）maleprofessorPh．D．tutormainly researches on sonochemistry technique．
Supported by:
Supported by the Scientific and Technological Project of Guangzhou City （Suiketiaozi （2002）27）

Abstract

Abstract: Factors affecting the ultrasonically-enhanced supercritical fluid extraction （USFE） of EPA and DHA from algae were studiedincluding the temperaturepressure and time of the extractionCO 2 flowrate and ultrasonic parameters．Compared with supercritical fluid extraction （SFE）USFE makes CO 2 flowrate and the temperaturepressure and time of the extraction decreasewhile the extration yields of EPA and DHA increase．On the basis of singl- efactor experimentsan orthogonal experiment was carried out．The results indicate that the extraction undertaken at the extraction temperature of35℃ and the pressure of25MPa for a extraction time of3．0h and with a CO 2 flowrate of3L／h is the optimum technology approach to extract EPA and DHA by USFE．

Key words: supercritical fluid extraction, ultrasonic, enhancement, eicosapentaenoic acid, docosahexaenoic acid；

CLC Number:

TQ460.2

Qiu Tai-qiu, Ding Cai-mei, Hu Ai-jun, et al. Analyses of Factors Affecting the Ultrasonically-enhanced Supercritical Fluid Extraction of EPA and DHA from Algae[J]. Journal of South China University of Technology(Natural Science Edition), 2004, 32(4): 43-47.

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Analyses of Factors Affecting the Ultrasonically-enhanced Supercritical Fluid Extraction of EPA and DHA from Algae

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