Lipases immobilized on the modified polyporous magnetic cellulose support as an efficient and recyclable catalyst for biodiesel production from Yellow horn seed oil

• Published in: Renewable energy 2020-01, Vol.145, p.1246-1254
• Main Authors: Zhang, Huaxia, Liu, Tianshu, Zhu, Yawei, Hong, Li, Li, Tianfeng, Wang, Xiqing, Fu, Yujie
• Format: Article
• Language: English
• Subjects: Biodiesel; Catalyst; Immobilization; Lipase; Polyporous magnetic cellulose beads
• ISSN: 0960-1481; 1879-0682
• DOI: 10.1016/j.renene.2019.06.031

In the present study, modified polyporous magnetic cellulose beads (PMCBs) were synthesized by several organic amines (EDA, DETA, TETA and AST) grafting PMCBs and then utilized as a new kind of support to immobilize Candida antarctica lipase B (CALB) for biodiesel production. The immobilized lipase catalysts based on PMCBs were characterized by Fourier transform infrared and scanning electron microscopy. The results showed that PMCBs-DETA was a more suitable immobilization support and the catalytic activity of immobilized lipases could reach 1.0 U/mg. Then the synthesized catalyst of CALB-PMCBs-DETA was used to produce biodiesel from Yellow horn seed oil via transesterification reaction. A high biodiesel yield (92.3%) was obtained under the optimal reaction conditions and the main compositions of the prepared biodiesel were tested by GC-MS. Moreover, the catalyst of CALB-PMCBs-DETA could be removed easily by a magnet and recycled at least 5 times. As a new kind of support, the modified PMCBs could be a promising alternative for the carriers of immobilizing enzymes used for the green and efficient production of biodiesel. [Display omitted] •PMCBs were modified by grafting amines and CALB was immobilized on the modified support materials for the first time.•The synthesized catalyst of CALB-PMCBs-DETA could be removed from the reaction system easily by a magnet.•This study provide a promising alternative for the carriers of immobilizing enzymes.