Chemo-Enzymatic Epoxidation of Lallemantia IbericaSeed Oil: Process Development and Economic-Ecological Evaluation |
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Authors: | Fabian Haitz author-information" >,Sophia Radloff,S. Rupp,M. Fröhling,T. Hirth,S. Zibek |
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Affiliation: | 1.Fraunhofer Institute for Interfacial Engineering and Biotechnology,Stuttgart,Germany;2.Karlsruhe Institute of Technology,Karlsruhe,Germany;3.University of Ulm,Ulm,Germany;4.University of Stuttgart,Stuttgart,Germany;5.TU Bergakademie Freiberg,Freiberg,Germany;6.Karlsruhe Institute of Technology,Karlsruhe,Germany |
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Abstract: | The chemo-enzymatic epoxidation of Lallemantia iberica seed oil (LISO), a novel plant oil characterized by its exceptional high content of alpha-linolenic acid (>?60%), was developed using an immobilized lipase from Pseudozyma antarctica and hydrogen peroxide as oxidant. A statistical approach was used to study the effect of enzyme amount, temperature, time, and solvent amount on the oxirane oxygen content obtained during epoxidation. An oxirane oxygen content of 8.6 ± 0.2% corresponding to a yield of 82% was obtained under optimized conditions that were identified to be at an enzyme load of 8.2 g/mol of double bonds, a solvent amount of 56.4 wt.%, a temperature of 33 °C, and an incubation time of 17 h. In addition, the experimental investigation was combined with a techno-economic and ecological assessment gaining detailed information regarding cost structure and environmental impact for the chemo-enzymatic epoxidation of the novel plant oil. |
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