An efficient and robust continuous-flow bioreactor for the enzymatic preparation of phytosterol esters based on hollow lipase microarray
文献类型： 外文期刊
作者： Xu, Liujia 1 ; Wang, Jing 1 ; Huang, Fenghong 1 ; Zheng, Mingming 1 ;
作者机构： 1.Chinese Acad Agr Sci, Oil Crops Res Inst, Hubei Key Lab Lipid Chem & Nutr, Key Lab Oilseeds Proc,Minist Agr, Wuhan 430062, Peoples R China
2.SAAS, Inst Agrofood Sci & Technol, Jinan 250100, Peoples R China
关键词： Phytosterol esters; Continuous-flow; Immobilized lipase; Enzymatic esterification; Food additives
期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）
ISSN： 0308-8146
年卷期： 2022 年 372 卷
页码：
收录情况： SCI
摘要： In this study, a continuous-flow bioreactor packed with well-organized lipase microarrays was developed for the sustainable synthesis of functional lipid-phytosterol esters (PEs). Hollow mesoporous silicon spheres with a suitable pore size were prepared for lipase immobilization, and the hydrophobic modification endowed the lipase with excellent catalytic activity and stability. The results showed that the condensely packed lipase microarrays offered large specific surface areas and guaranteed the thorough interaction between the lipase and substrates in the continuous-flow bioreactor. Meanwhile, the substrate could pass through the reactor at 1 mL/min with a high conversion of 93.6% due to the hollow structure of the packing spheres. Moreover, the reactors were able to produce 1564 g PEs/g catalyst in a continuous 30-day processing period, which set the highest records for PEs synthesis. This sustainable and highly-converting flow system provided a feasible path for scale-up production of PEs in the food processing area.
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