Synthesis of 1,3-dioleoyl-2-arachidonoylglycerol-rich structured lipids by lipase-catalyzed acidolysis of microbial oil from Mortierella alpina

被引：35
作者：
Abed, Sherif M. [1 ,2 ]
Zou, Xiaoqiang [1 ]
Ali, Abdelmoneim H. [1 ,3 ]
Jin, Qingzhe [1 ]
Wang, Xingguo [1 ]
机构：
[1] Jiangnan Univ, State Key Lab Food Sci & Technol, Natl Engn Res Ctr Funct Food,Sch Food Sci & Techn, Natl Engn Lab Cereal Fermentat Technol,Collaborat, 1800 Lihu Rd, Wuxi 214122, Jiangsu, Peoples R China
[2] El Arish Univ, Fac Environm Agr Sci, Food & Dairy Sci & Technol Dept, Al Arish 43511, Egypt
[3] Zagazig Univ, Dept Food Sci, Fac Agr, Zagazig 44511, Egypt
来源：
BIORESOURCE TECHNOLOGY | 2017年 / 243卷
关键词：
Arachidonic acid; Biocatalysis; Polyunsaturated fatty acids; Microbial oil; Structured lipids; MILK FAT SUBSTITUTES; OLEIC-ACID; DOCOSAHEXAENOIC ACIDS; ARACHIDONIC-ACID; OLIVE OIL; SN-2; POSITION; TRIACYLGLYCEROLS; PRODUCE; DHA; INTERESTERIFICATION;
D O I：
10.1016/j.biortech.2017.06.090
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Microbial oils (MOs) have gained widespread attention due to their functional lipids and health promoting properties. In this study, 1,3-dioleoyl-2-arachidonoylglycerol-rich structured lipids (SLs) were produced from MO and oleic acid (OA) via solvent-free acidolysis catalyzed by Lipozyme RM IM. Under the optimal conditions, the content of unsaturated fatty acids (UFAs) increased from 60.63 to 84.00%, while the saturated fatty acids (SFAs) content decreased from 39.37 to 16.00% at sn-1,3 positions in SLs. Compared with MO, arachidonic acid (ARA) content at the sn-2 position of SLs accounted for 49.71%, whereas OA was predominantly located at sn-1,3 positions (47.05%). Meanwhile, the most abundant triacylglycerol (TAG) species in SLs were (18: 1-20: 4-18: 1), (20: 4-20: 4-18: 1), (18: 1-18: 2-18: 1), (18: 1-18: 2-18: 0) and (24: 0-20: 4-18: 1) with a relative content of 18.79%, 11.94%, 6.07%, 5.75% and 4.84%, respectively. Such novel SLs with improved functional properties enriched with UFAs are highly desirable and have the potential to be used in infant formula. (C) 2017 Elsevier Ltd. All rights reserved.
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收藏
页码：448 / 456
页数：9
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