Kinetic and Thermodynamic Study of 2-Ethylhexyl Oleate Synthesis Catalyzed by Candida antarctica Lipase Immobilized on a Magnetic Hybrid Support (2020)
- Authors:
- USP affiliated authors: CASTRO, HEIZIR FERREIRA DE - EEL ; FREITAS, LARISSA DE - EEL ; DUTRA, FELLIPE POTZIK - EEL ; SILVA, MATEUS VINICIUS CASAGRANDE DA - EEL ; RANGEL, AMANDA BAHIA DE SOUZA - EEL
- Unidade: EEL
- DOI: 10.1007/s10562-020-03391-w
- Subjects: ESTERIFICAÇÃO; LIPASE; CINÉTICA
- Keywords: Operational stability; Kinetic/thermodynamic studies; Magnetic hybrid polymer; Immobilized lipase
- Agências de fomento:
- Language: Inglês
- Abstract: This study investigated the kinetic and thermodynamic parameters of the synthesis of 2-ethylhexyl oleate catalyzed by Candida antarctica lipase (CALB) immobilized on magnetic poly(styrene-co-divinylbenzene) (STY-DVB-M). The influence of acid/alcohol molar ratio and temperature on oleic acid conversion, ester concentration, and productivity was also assessed. Excess of one of the reagents resulted in high conversions, but the highest productivities were obtained at the stoichiometric ratio. Thus, a 1:1 molar ratio was considered optimal. Thermodynamic parameters calculated from the van’t Hoff equation (ΔS = + 850.64 J mol−1 K−1, ΔH = + 273.78 kJ mol−1) revealed that the reaction is endothermic with a positive entropy change. Temperatures below 45 °C negatively affected reaction kinetics, explained by the positive ΔG values. CALB-STY-DVB-M showed a hydrolytic activity of 522.97 ± 19.14 U g−1 and was about 1.7 times more thermally stable at 60 °C than the free enzyme. In an operational stability test, conducted for 7 consecutive cycles of 24 h, the biocatalyst had a half-life of 739 h. CALB-STY-DVB-M showed satisfactory performance in the synthesis of 2-ethylhexyl oleate, providing oleic acid conversions close to 100%, ester concentration of 450 g L−1, and productivity of 0.5 mmol g−1 h−1. The biocatalyst holds promise for industrial applications.
- Imprenta:
- Source:
- Título do periódico: Catalysis Letters
- ISSN: 1572879X
- Volume/Número/Paginação/Ano: v.15 , p. 1239–1247, 2020
- Este periódico é de assinatura
- Este artigo NÃO é de acesso aberto
- Cor do Acesso Aberto: closed
-
ABNT
SILVA, Mateus Vinicius Casagrande da et al. Kinetic and Thermodynamic Study of 2-Ethylhexyl Oleate Synthesis Catalyzed by Candida antarctica Lipase Immobilized on a Magnetic Hybrid Support. Catalysis Letters, v. 15 , p. 1239–1247, 2020Tradução . . Disponível em: https://doi.org/10.1007/s10562-020-03391-w. Acesso em: 19 set. 2024. -
APA
Silva, M. V. C. da, RANGEL, A. M. A. N. D. A. B. S., DUTRA, F. E. L. L. I. P. E. P., Castro, H. F. de, & Freitas, L. de. (2020). Kinetic and Thermodynamic Study of 2-Ethylhexyl Oleate Synthesis Catalyzed by Candida antarctica Lipase Immobilized on a Magnetic Hybrid Support. Catalysis Letters, 15 , 1239–1247. doi:10.1007/s10562-020-03391-w -
NLM
Silva MVC da, RANGEL AMANDABS, DUTRA FELLIPEP, Castro HF de, Freitas L de. Kinetic and Thermodynamic Study of 2-Ethylhexyl Oleate Synthesis Catalyzed by Candida antarctica Lipase Immobilized on a Magnetic Hybrid Support [Internet]. Catalysis Letters. 2020 ;15 1239–1247.[citado 2024 set. 19 ] Available from: https://doi.org/10.1007/s10562-020-03391-w -
Vancouver
Silva MVC da, RANGEL AMANDABS, DUTRA FELLIPEP, Castro HF de, Freitas L de. Kinetic and Thermodynamic Study of 2-Ethylhexyl Oleate Synthesis Catalyzed by Candida antarctica Lipase Immobilized on a Magnetic Hybrid Support [Internet]. Catalysis Letters. 2020 ;15 1239–1247.[citado 2024 set. 19 ] Available from: https://doi.org/10.1007/s10562-020-03391-w - Estudo cinético e termodinâmico da síntese do oleato de 2-etilhexila catalisada por lipase B de Candida antarctica imobilizada em copolímeros magnéticos
- Síntese e caracterização do poli(estireno-co-triacrilato de trimetilolpropano) magnetizado para utilização como suporte de imobilização de enzimas
- Obtention of a mathematical model for ester synthesis mediated by a commercial lipase immobilized on a magnetized copolymer
- Development of a magnetically stabilized fluidized bed bioreactor for enzymatic synthesis of 2-ethylhexyl oleate
- Synthesis of 2-ethylhexyl oleate catalyzed by lipase immobilized on a magnetic support in packed-bed bioreactor
- A fluidized bed reactor as an approach to enzymatic biodiesel production in a process with simultaneous glycerol removal
- Synthesis and Characterization of Magnetic Poly(STY-EGDMA) Particles for Application as Biocatalyst Support in Octyl Oleate Ester Synthesis: Kinetic and Thermodynamic Parameters and Mathematical Modeling
- Kinetic study of isopropyl palmitate synthesis catalyzed by lipases immobilized on a magnetic copolymer support
- Kinetic study of isopropyl palmitate synthesis catalyzed by lipases immobilized on a magnetic copolymer support
- Synthesis of octyl oleate catalyzed by lipase immobilized on magnetized copolymer
Informações sobre o DOI: 10.1007/s10562-020-03391-w (Fonte: oaDOI API)
How to cite
A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas
