期刊
CATALYSTS
卷 10, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/catal10080834
关键词
biocomposite hydrogel; waste frying acid oil; esterification reaction; immobilised lipase; biodiesel
资金
- Royal Golden Jubilee (RGJ)
- Newton Fund Institutional Links 2019/2020
- Khon Kaen University, Khon Kaen, Thailand [PD2563-07]
- Newton Fund [GA/PhD/Scholar/Year4/009]
- [PHD/0018/2557]
A new application of biocomposite hydrogels named gelatin-alginate (GA) and pectin alginate (PA) enables the use of the hydrogels as carriers for lipase entrapment during biodiesel production. Waste frying acid oil (WFAO), a raw material, was converted to biodiesel via an esterification reaction catalysed by two different immobilised biocatalysts: gelatin-alginate lipase (GAL) and pectin-alginate lipase (PAL). The highest immobilisation yield of GAL and PAL beads was achieved at 97.61% and 98.30%, respectively. Both of them gave biodiesel yields in the range of 75-78.33%. Furthermore, capability and reusability of biocatalysts were improved such that they could be reused up to 7 cycles. Moreover, the predicted biodiesel properties met the European biodiesel standard (EN14214). Interestingly, entrapped lipase on composite hydrogels can be used as an alternative catalyst choice for replacing the chemical catalyst during the biodiesel production.
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