期刊
BIORESOURCE TECHNOLOGY
卷 102, 期 21, 页码 9991-9996出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.07.104
关键词
Flaxseed oil; Aqueous enzymatic process; Ultrasound extraction; Immobilized enzymes; Antioxidant activity
资金
- Agricultural Science and Technology Achievements Transformation Fund Program [2009GB23600514]
- Project for Distinguished Teacher Abroad
- Chinese Ministry of Education [MS2010DBLY031]
- Fundamental Research Funds for the Central Universities [DL09EA04]
- Special Fund of Forestry Industrial Research for Public Welfare of China [201004040]
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 C 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 USE-derived oil. AEP-UE is therefore a promising environmentally friendly method for large-scale preparation of flaxseed oil. (C) 2011 Elsevier Ltd. All rights reserved.
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