Control of selectivity in the oxidation of 5-hydroxymethylfurfural to 5- formyl-2-furancarboxylic acid catalyzed by laccase in a multiphasic gas-liquid microbioreactor

IF 9.7 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2023-12-04 DOI:10.1016/j.biortech.2023.130154

Aura Araya , Nadia Guajardo , María Elena Lienqueo

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Abstract

The selectivity of 5-formyl-2-furancarboxylic acid (FFCA) was studied in a batch bioreactor and microbioreactors with different internal diameters (ID). Using microbioreactors, the effect of the flow rate of the liquid and gas phase on the yield, space time yield (STY_FFCA), and gas–liquid mixture velocity (U_M) of the reaction was evaluated. The biooxidation in flow microbioreactors, a selectivity of 100 % for FFCA was achieved, while with the batch bioreactor at the same substrate concentration a selectivity of 6.7 % was obtained. The highest yield (30 %) with 15 mM of 5-hydroxymethylfurfural (HMF) was reached at a gas–liquid flow rate of 0.5 µL/min and the highest STY_FFCA (0.07 mol m⁻³ min⁻¹) was achieved at a gas–liquid flow rate of 1.5 µL/min with the microbioreactor with an ID of 0.5 mm. The U_M values (0.5 to 1.6 cm min¹) indicated that the reaction takes place under a kinetic regime without mass transfer limitations.

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漆酶催化多相气液微生物反应器中5-羟甲基糠醛氧化制5-甲酰基-2-呋喃羧酸的选择性控制

在间歇式生物反应器和不同内径的微生物反应器中研究了5-甲酰基-2-呋喃羧酸(FFCA)的选择性。采用微生物反应器，考察了液气两相流速对反应产率、时空产率(STYFFCA)和气液混合速度(UM)的影响。在流动微生物反应器中，FFCA的选择性为100% %，而在相同底物浓度的间歇生物反应器中，FFCA的选择性为6.7 %。当气液流速为0.5 µL/min时，5-羟甲基糠醛(HMF)的产率为15 mM，产率为30 %;当气液流速为1.5 µL/min，流速为0.5 mM时，STYFFCA最高产率为0.07 mol m−3 min−1。UM值(0.5 ~ 1.6 cm min1)表明反应发生在没有传质限制的动力学体系下。

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来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

期刊介绍： Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.