Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6488406 | Food and Bioproducts Processing | 2018 | 10 Pages |
Abstract
Single cell oils (SCOs) are considered as important sources of the essential fatty acids (EFAs) such as arachidonic acid (ARA), which is of great importance for infant's growth and development. Medium-chain triacylglycerols (MCTs) induce the residual glyceride lipolysis, which improve fat absorption, and thus reduce its deposition in infants. Medium- and long-chain triacylglycerols (MLCTs)-rich structured lipids (SLs) combine these benefits, and they can be delivered to infants in an easy way. In this study, MLCTs-rich SLs were synthesized by lipase-catalyzed interesterification of ARASCO with MCTs in a solvent-free system. Four commercial immobilized lipases from different sources were compared for their efficiency in the production of MLCTs yield. The results indicated that the highest yield of MLCTs was achieved by Lipozyme 435 from Candida antarctica as a biocatalyst. The best reaction conditions were as follows; enzyme load 8% (w/w), reaction temperature 90 °C, reaction time of 3 h, and substrates mole ratio 1:1. Under these conditions, MLCTs were obtained in a yield of 53.75%. Thermoprofile displayed that the MLCTs-rich SLs melted below body temperature of 37 °C. The obtained MLCTs-rich SLs can be suggested as a nutritional and functional fat analogue with potential applications in infant formula industry.
Keywords
LMLMAGmonoacylglycerolMMLMCTsLMMFFAsMLLMLMMedium-chain triacylglycerolsELSDECNLCFAsLC-PUFAsLipozyme 435Equivalent carbon numberLong-chain triacylglycerolsEFAsMCFAsLLMLCTsRP-HPLCDSCSLSHDLEvaporative Light Scattering Detectorflame ionization detectorArachidonic acidFatty acidFree fatty acidsLong-chain polyunsaturated fatty acidsLong-chain fatty acidsEssential fatty acidsMedium-chain fatty acidsInteresterificationTAGsTriacylglycerolsSCOSFIDARAdiacylglycerolDAGsingle cell oilSingle cell oilshigh density lipoproteinlow density lipoproteinLDLStructured lipidsdifferential scanning calorimeterGas chromatography
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Bioengineering
Authors
Sameh A. Korma, Xiaoqiang Zou, Abdelmoneim H. Ali, Sherif M. Abed, Qingzhe Jin, Xingguo Wang,