Concentration of Omega-3 Polyunsaturated Fatty Acids from Oil of Schizochytrium limacinum by Molecular Distillation: Optimization of Technological Conditions

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• 作者：GuiYu Zhang ; Jing Liu ; YuanFa Liu
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2013
• 出版时间：March 13, 2013
• 年：2013
• 卷：52
• 期：10
• 页码：3918-3925
• 全文大小：399K
• 年卷期：v.52,no.10(March 13, 2013)
• ISSN：1520-5045

文摘

Production of omega-3 polyunsaturated fatty acids concentrates from oil of Schizochytrium limacinum was optimized to obtain the highest omega-3 polyunsaturated fatty acid (蠅-3PUFA) enrichment ratio. In this process, the content of docosapentenoic acid (DPA), the content of docosahexenoic acid (DHA) in the final product, the percentage recovery of the heavy phase, and the 蠅-3PUFA enrichment ratio were optimized. Single-factor experiments were carried out to study the effects of evaporator temperature, feeding rate, feeding temperature, and roller speed. A central composite design was used to optimize technological conditions. Under optimum conditions, the highest 蠅-3PUFA enrichment ratio (92.98%) was obtained at an evaporator temperature of 110.4 掳C, a feeding rate of 78.7 mL/h, a roller speed of 350 rpm, a feeding temperature of 80 掳C, and an operating pressure 10 Pa.