Ultrasound-assisted extraction of flaxseed oil using immobilized enzymes

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• 作者：Jing-jing  ; Long ; Yu-jie  ; Fu  ; ;   ; ^{yujie_fu2002@yahoo.com} ; Yuan-gang  ; Zu ; Ji  ; Li ; Wei  ; Wang ; Cheng-bo  ; Gu ; Meng  ; Luo
• 关键词：Flaxseed oil ; Aqueous enzymatic process ; Ultrasound extraction ; Immobilized enzymes ; Antioxidant activity
• 刊名：Bioresource Technology
• 出版年：2011
• 出版时间：November 2011
• 年：2011
• 卷：102
• 期：21
• 页码：9991-9996
• 全文大小：537 K

文摘

An aqueous enzymatic process assisted by ultrasound extraction (AEP-UE) was applied to the extraction of oil from flaxseed (Linum usitatissimum L.). The highest oil recovery of 68.1 % was obtained when ground flaxseed was incubated with 130 U/g of cellulase, pectinase, and hemicellulase for 12 h, at 45 ¡ãC and pH 5.0. The IC₅₀ values of oil obtained by AEP-UE and organic solvent extraction (OSE), as measured by DPPH scavenging activity essay, were 2.27 mg/mL and 3.31 mg/mL. The AEP-UE-derived oil had a 1.5 % higher content of unsaturated fatty acids than the OSE-derived oil. AEP-UE is therefore a promising environmentally friendly method for large-scale preparation of flaxseed oil.