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Synthesis of 2-ethylhexyl oleate catalyzed by lipase immobilized on a magnetic support in packed-bed bioreactor (2019)

• Authors:
  • Silva, Mateus Vinicius Casagrande da
  • Oliveira, Pedro Carlos de
  • Castro, Heizir Ferreira de
  • Freitas, Larissa de
• USP affiliated authors: CASTRO, HEIZIR FERREIRA DE - EEL ; OLIVEIRA, PEDRO CARLOS DE - EEL ; FREITAS, LARISSA DE - EEL ; SILVA, MATEUS VINICIUS CASAGRANDE DA - EEL
• Unidade: EEL
• Subjects: LIPASE; BIOTECNOLOGIA
• Language: Inglês
• Abstract: This study evaluated the synthesis of the emollient ester 2-ethylhexyl oleate catalyzed by Candida antarctica lipase immobilized on a poly(styrene-co-divinylbenzene) support containing magnetite particles. Esterification reactions were conducted in a continuous-flow packed-bed bioreactor and the influence of acid/alcohol molar ratio (1:4 to 4:1) and space- time (3 to 12 h) were evaluated. We observed that the longer the space time and the higher the concentration of either acid or alcohol, the higher the esterification yield (80–85%). These results can be explained by Le Châtelier’s principle: an increase in reagent concentration shifts the equilibrium toward product formation. However, higher productivities were obtained using short space- times and acid/alcohol molar ratios closer to the stoichiometric ratio, because high concentration of the limiting reactant, combined with lower amounts of water and products and shorter space- time, resulted in increased reaction rates. At a space time of 12 h, productivity was highest (22–26 mmol g−1 L−1 h−1) at an acid/alcohol molar ratio of 1:1. The biocatalyst showed good stability (half-life of 2063 h) under these conditions. The results suggest that the bioprocess is attractive for the synthesis of emollient esters.
• Imprenta:
  • Publisher: SINAFERM
  • Publisher place: Uberlância-MG
  • Date published: 2019
• Source:
  • Título do periódico: Anais do XXII National Bioprocesses Symposium (SINAFERM) XIII Enzymatic Hydrolysis of Biomass Symposium (SHEB)
  • ISSN: 2447-2816
  • Volume/Número/Paginação/Ano: p.-, 2019


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• ABNT

  SILVA, Mateus Vinicius Casagrande da et al. Synthesis of 2-ethylhexyl oleate catalyzed by lipase immobilized on a magnetic support in packed-bed bioreactor. 2019, Anais.. Uberlância-MG: SINAFERM, 2019. p. -. Disponível em: https://proceedings.science/user/login/ashnazg?destination=/sinaferm/sinaferm-sheb-2019/papers/synthesis-of-2-ethylhexyl-oleate-catalyzed-by-lipase-immobilized-on-a-magnetic-s%3Flang%3Den%23download-paper&lang=en. Acesso em: 31 maio 2024.

• APA

  Silva, M. V. C. da, Oliveira, P. C. de, Castro, H. F. de, & Freitas, L. de. (2019). Synthesis of 2-ethylhexyl oleate catalyzed by lipase immobilized on a magnetic support in packed-bed bioreactor. In Anais do XXII National Bioprocesses Symposium (SINAFERM) XIII Enzymatic Hydrolysis of Biomass Symposium (SHEB) (p. -). Uberlância-MG: SINAFERM. Recuperado de https://proceedings.science/user/login/ashnazg?destination=/sinaferm/sinaferm-sheb-2019/papers/synthesis-of-2-ethylhexyl-oleate-catalyzed-by-lipase-immobilized-on-a-magnetic-s%3Flang%3Den%23download-paper&lang=en

• NLM

  Silva MVC da, Oliveira PC de, Castro HF de, Freitas L de. Synthesis of 2-ethylhexyl oleate catalyzed by lipase immobilized on a magnetic support in packed-bed bioreactor [Internet]. Anais do XXII National Bioprocesses Symposium (SINAFERM) XIII Enzymatic Hydrolysis of Biomass Symposium (SHEB). 2019 ;-.[citado 2024 maio 31 ] Available from: https://proceedings.science/user/login/ashnazg?destination=/sinaferm/sinaferm-sheb-2019/papers/synthesis-of-2-ethylhexyl-oleate-catalyzed-by-lipase-immobilized-on-a-magnetic-s%3Flang%3Den%23download-paper&lang=en

• Vancouver

  Silva MVC da, Oliveira PC de, Castro HF de, Freitas L de. Synthesis of 2-ethylhexyl oleate catalyzed by lipase immobilized on a magnetic support in packed-bed bioreactor [Internet]. Anais do XXII National Bioprocesses Symposium (SINAFERM) XIII Enzymatic Hydrolysis of Biomass Symposium (SHEB). 2019 ;-.[citado 2024 maio 31 ] Available from: https://proceedings.science/user/login/ashnazg?destination=/sinaferm/sinaferm-sheb-2019/papers/synthesis-of-2-ethylhexyl-oleate-catalyzed-by-lipase-immobilized-on-a-magnetic-s%3Flang%3Den%23download-paper&lang=en

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