Ionic liquids in biotechnology: applications and perspectives for biotransformations

Roosen, Christoph; Müller, Pia; Greiner, Lasse

doi:10.1007/s00253-008-1730-9

Cited by 162 publications

(88 citation statements)

References 42 publications

(55 reference statements)

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“…As a result, recent efforts have been focused on exploration of enzymefriendly and environment-friendly ionic liquids (Roosen et al 2008), because green solvent is promising for commercial application (Kamiya et al 2008). Although deactivation of cellulase in the presence of low concentrations of [Bmim]Cl, a typical cellulose-treated IL, was demonstrated (Turner et al 2003), up to 60% (v/v) of [Emim][OAc] and DMEAA gave to enzymatic resolution of amino acids (Zhao et al 2006;Rayne and Mazza 2007), implying that the anionic component of ILs plays a key role in enzymatic catalysis.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the biocompatibile ionic liquid 1-methyl-3-methylimidazolium dimethylphosphite pretreatment of corn cob for improved saccharification

Jiang

et al. 2010

Appl Microbiol Biotechnol

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Ionic liquid (IL) pretreatment of lignocellulose materials is a promising process in biomass conversion to renewable biofuel. More in-depth research involving environment-friendly IL is much needed to explore pretreatment green route. In our case, IL 1-methyl-3-methylimidazolium dimethylphosphite ([Mmim]DMP) was chosen as an environment-friendly solvent to pretreat corn cob in view of its biocompatibility with both lignocellulose solubility and cellulase activity. The pretreatment/saccharification process and in situ saccharification process involving [Mmim]DMP were efficiently performed in bioconversion of corn cob to sugars, and more than 70% saccharification rates were obtained. Furthermore, the fermentability of reducing sugars obtained from the hydrolyzates was evaluated using Rhodococcus opacus strain ACCC41043 (R. opacus). High lipid production 41-43% of cell dry matter was obtained after 30 h of cultivation. GC/ MS analysis indicated that lipids from R. opacus contained mainly long-chain fatty acids with four major constituent/ oleic acid, stearic acid, palmitic acid, palmitoleic acid which are good candidates for biodiesel. These elucidated that corn cob pretreated by IL [Mmim]DMP did not bring negative effects on saccharification, cell growth, and accumulation of lipid of R. opacus. In conclusion, the IL [Mmim]DMP shows promise as green pretreatment solvent for cellulosic materials.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the biocompatibile ionic liquid 1-methyl-3-methylimidazolium dimethylphosphite pretreatment of corn cob for improved saccharification

Jiang

et al. 2010

Appl Microbiol Biotechnol

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“…The assumption of ammonium-carbamate pairs as in Figure 1 has been shown to be the predominant compound in silylamine RevIL systems through 13 C-NMR studies, but are not the only species present. 39 The CO 2 uptake has been measured to be >0.5 mol CO 2 /mol ML in many fully-converted silylamines at 25…”

Section: Resultsmentioning

confidence: 99%

“…Redistribution subject to ECS terms of use (see 18.236.120. 13 Downloaded on 2018-05-10 to IP Conductivity and viscosity are inversely proportional when the ions in solutions act as independent charge carriers from one another related by the equation derived from the Nernst-Einstein and StokesEinstein equations.…”

Section: Resultsmentioning

confidence: 99%

Ionicity Analysis of Silylamine-Type Reversible Ionic Liquids as a Model Switchable Electrolyte

Jiménez

Jung

Biddinger

2015

J. Electrochem. Soc.

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Separation of the electrochemical product from an electrolyte can add challenges to the overall process. Use of a switchable electrolyte offers the possibility to reduce or eliminate these separation challenges while maintaining high conductivity. Reversible ionic liquids (RevILs) are a type of switchable solvent that could be used as a switchable electrolyte. Switchable solvents are solvents that can have dramatic step-changes in their properties with the introduction of an external stimulus, in this case CO 2 . In order to determine the feasibility of using TEtoxySA-RevIL, which behaves similarly to protic ionic liquids, as an electrolyte an ionicity analysis utilizing binary mixtures of the RevIL and organic solvents were studied to determine the ionic behavior of the system. Both protic and aprotic solvents with a broad range of dielectric constants were used in order to elucidate the ionicity of the RevIL mixtures. When in the pure RevIL state, the conductivity is prohibitively low due to a heightened viscosity and poor ion mobility due to hydrogen bonding and coulometric attraction. We found that in the presence of protic solvents with high dielectric constants the conductivity of the RevIL increased by up to four orders of magnitude and achieved ideal ionicity.

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“…The most interesting characteristic of ionic liquids is the possibility of designing a molecule aiming at a specific application or in order to obtain a certain set of properties such as melting point, viscosity, density, water solubility and selectivity (Roosen et al, 2008;Welton, 1999). These compounds also have the ability to dissolve a variety of different substances, including polar and apolar organic compounds, inorganic and polymeric molecules due to their variable structure (Gamba et al, 2008).…”

Section: Ionic Liquid Characteristicsmentioning

confidence: 99%

Use of ionic liquids in biodiesel production: a review

Andreani

Rocha

2012

Braz. J. Chem. Eng.

117

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-This paper discusses the feasibility of the use of ionic liquids as catalysts in the biodiesel production field, describing some studies already published in the literature on this theme. Ionic liquids are regarded as a new generation of catalysts in the chemical industry, with several uses in different commercial segments. However only a few publications involving this topic can be found in the literature addressing the manufacture of biodiesel from vegetable oils or animal fats. Through the analysis of the data generated in the studies reviewed, it is possible to affirm that ionic liquids present great potential as catalysts for biodiesel production, but there are some challenges to be faced, such as the production of ionic liquids with low cost, easy recovery and with the possibility of reutilization of the catalyst for several cycles.

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Ionic liquids in biotechnology: applications and perspectives for biotransformations

Cited by 162 publications

References 42 publications

Evaluation of the biocompatibile ionic liquid 1-methyl-3-methylimidazolium dimethylphosphite pretreatment of corn cob for improved saccharification

Evaluation of the biocompatibile ionic liquid 1-methyl-3-methylimidazolium dimethylphosphite pretreatment of corn cob for improved saccharification

Ionicity Analysis of Silylamine-Type Reversible Ionic Liquids as a Model Switchable Electrolyte

Use of ionic liquids in biodiesel production: a review

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