1
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Regional Segregation of Chiral Alcohol on Polyoxotitanate Cluster. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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2
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Expanding Access to Optically Active Non-Steroidal Anti-Inflammatory Drugs via Lipase-Catalyzed KR of Racemic Acids Using Trialkyl Orthoesters as Irreversible Alkoxy Group Donors. Catalysts 2022. [DOI: 10.3390/catal12050546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Studies into the enzymatic kinetic resolution (EKR) of 2-arylpropanoic acids (‘profens’), as the active pharmaceutical ingredients (APIs) of blockbuster non-steroidal anti-inflammatory drugs (NSAIDs), by using various trialkyl orthoesters as irreversible alkoxy group donors in organic media, were performed. The enzymatic reactions of target substrates were optimized using several different immobilized preparations of lipase type B from the yeast Candida antarctica (CAL-B). The influence of crucial parameters, including the type of enzyme and alkoxy agent, as well as the nature of the organic co-solvent and time of the process on the conversion and enantioselectivity of the enzymatic kinetic resolution, is described. The optimal EKR procedure for the racemic profens consisted of a Novozym 435-STREM lipase preparation suspended in a mixture of 3 equiv of trimethyl or triethyl orthoacetate as alkoxy donor and toluene or n-hexane as co-solvent, depending on the employed racemic NSAIDs. The reported biocatalytic system provided optically active products with moderate-to-good enantioselectivity upon esterification lasting for 7–48 h, with most promising results in terms of enantiomeric purity of the pharmacologically active enantiomers of title APIs obtained on the analytical scale for: (S)-flurbiprofen (97% ee), (S)-ibuprofen (91% ee), (S)-ketoprofen (69% ee), and (S)-naproxen (63% ee), respectively. In turn, the employment of optimal conditions on a preparative-scale enabled us to obtain the (S)-enantiomers of: flurbiprofen in 28% yield and 97% ee, ibuprofen in 45% yield and 56% ee, (S)-ketoprofen in 23% yield and 69% ee, and naproxen in 42% yield and 57% ee, respectively. The devised method turned out to be inefficient toward racemic etodolac regardless of the lipase and alkoxy group donor used, proving that it is unsuitable for carboxylic acids possessing tertiary chiral centers.
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Borowiecki P, Zdun B, Dranka M. Chemoenzymatic enantioselective and stereo-convergent syntheses of lisofylline enantiomers via lipase-catalyzed kinetic resolution and optical inversion approach. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111451] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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4
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Unugul T, Kutluk T, Gürkaya Kutluk B, Kapucu N. Environmentally friendly processes from coffee wastes to trimethylolpropane esters to be considered biolubricants. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2020; 70:1198-1215. [PMID: 32644908 DOI: 10.1080/10962247.2020.1788664] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 06/18/2020] [Accepted: 06/21/2020] [Indexed: 06/11/2023]
Abstract
In this study, an eco-friendly renewable biodegradable alternative to petroleum-based oil lubricants was produced using espresso coffee wastes. Waste coffee oil used as raw material was extracted from Espresso coffee wastes by Soxhlet and conventional solvent extraction. Free fatty acids (FFA) were obtained by hydrolysis of the obtained waste oil using Lipozyme TL IM (Thermomyces lanuginosus). The byproduct, glycerol, was also separated from the reaction medium using a separatory funnel. The obtained FFA was used as a raw material in the production of TMP esters. Polyol esters of fatty acids were synthesized as a result of the esterification reaction between FFA and polyol alcohol (trimethylolpropane (TMP)) using Novozyme 435 (Candida antarctica). The amount of FFA in the medium and the FFA conversion was determined by titration with NaOH solution according to ASTM D 5555-95 standard and the FFA composition of espresso coffee oil by GC. The oil content of espresso coffee extract was found to be rich by 16% and the FFA composition was rich in palmitic acid (C16:0 43% by weight) and linoleic acid (C18:2 31% by weight). 31% of FFA was obtained from the coffee oil. Experimental studies have shown that the highest FFA conversion of 88% with 93% TMP tri-ester content was obtained at a temperature of 55°C, 5% enzyme (w/w), non-aqueous media, 3/1 FFA/TMP mole ratio, 500 rpm mixing speed and 24 hours. Implications: Filter coffee wastes, which have become one of the most important biological wastes with an annual production capacity of 6 million tons worldwide; It is targeted to be transformed into environmentally friendly products, as it is important in terms of economy and policies of many developing countries, it is a renewable resource and there is a high amount of waste accumulation day by day. Evaluation of waste filter coffees and oils with this research article; It is envisaged that the bio-lubricating oil used in many sectors will be synthesized and commercialized with an environmentally friendly process.
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Affiliation(s)
- Tuba Unugul
- Department of Chemical Engineering, Kocaeli University , Kocaeli, Turkey
| | - Togayhan Kutluk
- Department of Chemical Engineering, Kocaeli University , Kocaeli, Turkey
| | | | - Nurcan Kapucu
- Department of Chemical Engineering, Kocaeli University , Kocaeli, Turkey
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Yan HD, Guo BH, Wang Z, Qian JQ. Surfactant-modified Aspergillus oryzae lipase as a highly active and enantioselective catalyst for the kinetic resolution of ( RS)-1-phenylethanol. 3 Biotech 2019; 9:265. [PMID: 31218176 PMCID: PMC6562008 DOI: 10.1007/s13205-019-1796-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 06/03/2019] [Indexed: 12/18/2022] Open
Abstract
The lipase from Aspergillus oryzae was modified with a surfactant and then observed to exhibit high catalytic efficiency and enantioselectivity for the kinetic resolution of (RS)-1-phenylethanol. The influential factors of the modified-lipase preparation were investigated, including the surfactant source, the organic cosolvent, and the buffer pH. The optimum modification conditions were found with a surfactant of polyoxyethylene sorbitan monopalmitate, an organic cosolvent of tetrahydrofuran and a phosphate buffer of pH 7.0. In the transesterification of (RS)-1-phenylethanol with vinyl acetate, the surfactant-modified lipase showed excellent enantioselectivity for the R-isomer (E > 200), giving an enantiomeric excess of higher than 99% for (R)-1-phenylethyl acetate at 46.8% conversion with the reaction time of 2 h at 30 °C. The enzymatic activity had barely altered after 30 days even at 50 °C when it was saved in a powdered state. The results indicated that the modification strategy was useful and highly efficient, and that modified A. oryzae lipase was a promising biocatalyst in the kinetic resolution of (RS)-1-phenylethanol.
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Affiliation(s)
- Hong De Yan
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Bing Han Guo
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Zhao Wang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
| | - Jun Qing Qian
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014 People’s Republic of China
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6
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Yuan X, Kang S, Zhang P, Xu W, Tang K. Experiment and simulation on kinetic resolution of (
R,S
)‐2‐chloromandelic acid by enzymatic transesterification. Biotechnol Prog 2019; 35:e2815. [DOI: 10.1002/btpr.2815] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/17/2019] [Accepted: 03/23/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Xin Yuan
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan China
| | - Shuangjian Kang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan China
| | - Panliang Zhang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan China
| | - Weifeng Xu
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan China
| | - Kewen Tang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan China
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7
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One pot kinetic resolution and product separation with corn germ oil and supercritical carbon dioxide. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2018.01.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Mathpati AC, Bhanage BM. Prediction of enantioselectivity of lipase catalyzed kinetic resolution using umbrella sampling. J Biotechnol 2018; 283:70-80. [DOI: 10.1016/j.jbiotec.2018.07.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/21/2018] [Accepted: 07/18/2018] [Indexed: 12/21/2022]
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9
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Belkacemi FZ, Merabet-Khelassi M, Aribi-Zouioueche L, Riant O. Production of l-menthyl acetate through kinetic resolution by Candida cylindracea lipase: effects of alkaloids as additives. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3525-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Zhang K, Pan Z, Diao Z, Liang S, Han S, Zheng S, Lin Y. Kinetic resolution of sec -alcohols catalysed by Candida antarctica lipase B displaying Pichia pastoris whole-cell biocatalyst. Enzyme Microb Technol 2018; 110:8-13. [DOI: 10.1016/j.enzmictec.2017.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/05/2017] [Accepted: 11/13/2017] [Indexed: 11/30/2022]
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11
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Magadum DB, Yadav GD. Design of tandem catalyst by co-immobilization of metal and enzyme on mesoporous foam for cascaded synthesis of (R)-phenyl ethyl acetate. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2017.10.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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12
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Kinetic resolution of 1,2-diols using immobilized Burkholderia cepacia lipase: A combined experimental and molecular dynamics investigation. J Biotechnol 2017; 262:1-10. [DOI: 10.1016/j.jbiotec.2017.09.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/11/2017] [Accepted: 09/23/2017] [Indexed: 11/20/2022]
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13
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Zhang Y, Gao X, Wang C, Zheng Z, Wang L, Liu J. One-pot stereoselective synthesis of chiral 1, 3-oxathiolane by Trichosporon laibachii lipase: Optimization by response surface methodology integrated a desirability function approach. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.07.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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14
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Mathpati AC, Bhanage BM. Combined docking and molecular dynamics study of lipase catalyzed kinetic resolution of 1-phenylethanol in organic solvents. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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15
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The effect of the migrating group structure on enantioselectivity in lipase-catalyzed kinetic resolution of 1-phenylethanol. CR CHIM 2016. [DOI: 10.1016/j.crci.2016.05.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Yan HD, Wang Z, Qian JQ. Efficient kinetic resolution of (RS
)-1-phenylethanol by a mycelium-bound lipase from a wild-type Aspergillus oryzae
strain. Biotechnol Appl Biochem 2016; 64:251-258. [DOI: 10.1002/bab.1484] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 02/01/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Hong-De Yan
- College of Biological and Environmental Engineering; Zhejiang University of Technology; Hangzhou People's Republic of China
| | - Zhao Wang
- College of Biological and Environmental Engineering; Zhejiang University of Technology; Hangzhou People's Republic of China
| | - Jun-Qing Qian
- College of Biological and Environmental Engineering; Zhejiang University of Technology; Hangzhou People's Republic of China
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17
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Zinc Oxide Nanoparticles Supported Lipase Immobilization for Biotransformation in Organic Solvents: A Facile Synthesis of Geranyl Acetate, Effect of Operative Variables and Kinetic Study. Appl Biochem Biotechnol 2016; 178:1630-51. [DOI: 10.1007/s12010-015-1972-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/28/2015] [Indexed: 10/22/2022]
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18
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De Yan H, Li Q, Wang Z. Efficient kinetic resolution of (±)-menthol by a lipase from Thermomyces lanuginosus. Biotechnol Appl Biochem 2015; 64:87-91. [PMID: 26549685 DOI: 10.1002/bab.1457] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 11/03/2015] [Indexed: 12/30/2022]
Abstract
A lipase from Thermomyces lanuginosus (Lipozyme TL IM) exhibited high enantioselectivity for kinetic resolution of (±)-menthol in organic solvent. The various reaction parameters affecting the conversion and enantioselectivity were studied. The optimum reaction conditions for the transesterification reaction were found with vinyl acetate in the solvent of methyl tert-butyl ether with a vinyl acetate:(±)-menthol molar ratio of 5:1 and an enzyme concentration of 200 g/L at 30 °C. In these conditions, (-)-menthyl acetate with 99.3% enantiomeric excess was obtained, whereas the conversion was 34.7% with the reaction time of 12 H at the substrate concentration of 0.5 M. In addition, the enzyme allowed the substrate loading to be increased up to 1.5 M without the decrease of the enantioselectivity. These results indicated that Lipozyme TL IM was a promising biocatalyst in the resolution of (±)-menthol.
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Affiliation(s)
- Hong De Yan
- College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Qin Li
- College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Zhao Wang
- College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
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19
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He W, Fang Z, Zhu N, Ji D, Li Z, Guo K. Ring-opening polymerization of ɛ-caprolactone catalyzed by a novel lipaseCandidasp. 99-125. BIOCATAL BIOTRANSFOR 2015. [DOI: 10.3109/10242422.2015.1089864] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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20
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Vrutika P, Datta M. Lipase from Solvent-Tolerant Pseudomonas sp. DMVR46 Strain Adsorb on Multiwalled Carbon Nanotubes: Application for Enzymatic Biotransformation in Organic Solvents. Appl Biochem Biotechnol 2015; 177:1313-26. [DOI: 10.1007/s12010-015-1816-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 08/17/2015] [Indexed: 12/22/2022]
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21
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Delgado-Povedano M, Luque de Castro M. A review on enzyme and ultrasound: A controversial but fruitful relationship. Anal Chim Acta 2015; 889:1-21. [DOI: 10.1016/j.aca.2015.05.004] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 05/02/2015] [Accepted: 05/05/2015] [Indexed: 10/23/2022]
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22
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Cui C, Xie R, Tao Y, Zeng Q, Chen B. Improving performance ofYarrowia lipolyticalipase lip2-catalyzed kinetic resolution of (R, S)-1-phenylethanol by solvent engineering. BIOCATAL BIOTRANSFOR 2015. [DOI: 10.3109/10242422.2015.1018190] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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23
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Kitamoto Y, Kuruma Y, Suzuki K, Hattori T. Effect of Solvent Polarity on Enantioselectivity in Candida Antarctica Lipase B Catalyzed Kinetic Resolution of Primary and Secondary Alcohols. J Org Chem 2014; 80:521-7. [DOI: 10.1021/jo502521e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Yuichi Kitamoto
- Department of Biomolecular
Engineering, Graduate School of Engineering, Tohoku University, 6-6-11
Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Yosuke Kuruma
- Department of Biomolecular
Engineering, Graduate School of Engineering, Tohoku University, 6-6-11
Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Kazumi Suzuki
- Department of Biomolecular
Engineering, Graduate School of Engineering, Tohoku University, 6-6-11
Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Tetsutaro Hattori
- Department of Biomolecular
Engineering, Graduate School of Engineering, Tohoku University, 6-6-11
Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan
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24
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Ren H, Zhan Y, Fang X, Yu D. Enhanced catalytic activity and thermal stability of 2,4-dichlorophenol hydroxylase by using microwave irradiation and imidazolium ionic liquid for 2,4-dichlorophenol removal. RSC Adv 2014. [DOI: 10.1039/c4ra10637g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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25
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Glutaraldehyde cross-linking of immobilized thermophilic esterase on hydrophobic macroporous resin for application in poly(ε-caprolactone) synthesis. Molecules 2014; 19:9838-49. [PMID: 25006789 PMCID: PMC6270815 DOI: 10.3390/molecules19079838] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/03/2014] [Accepted: 07/04/2014] [Indexed: 11/24/2022] Open
Abstract
The immobilized thermophilic esterase from Archaeoglobus fulgidus was successfully constructed through the glutaraldehyde-mediated covalent coupling after its physical adsorption on a hydrophobic macroporous resin, Sepabeads EC-OD. Through 0.05% glutaraldehyde treatment, the prevention of enzyme leaching and the maintenance of catalytic activity could be simultaneously realized. Using the enzymatic ring-opening polymerization of ε-caprolactone as a model, effects of organic solvents and reaction temperature on the monomer conversion and product molecular weight were systematically investigated. After the optimization of reaction conditions, products were obtained with 100% monomer conversion and Mn values lower than 1010 g/mol. Furthermore, the cross‑linked immobilized thermophilic esterase exhibited an excellent operational stability, with monomer conversion values exceeding 90% over the course of 12 batch reactions, still more than 80% after 16 batch reactions.
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26
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Shang CY, Li WX, Zhang RF. Immobilized Candida antarctica lipase B on ZnO nanowires/macroporous silica composites for catalyzing chiral resolution of (R,S)-2-octanol. Enzyme Microb Technol 2014; 61-62:28-34. [DOI: 10.1016/j.enzmictec.2014.04.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 04/18/2014] [Accepted: 04/23/2014] [Indexed: 01/20/2023]
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27
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Moure VR, Fabrício C, Frensch G, Marques FA, Mitchell DA, Krieger N. Enhancing the enantioselectivity of the lipase from Burkholderia cepacia LTEB11 towards the resolution of secondary allylic alcohols. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2014. [DOI: 10.1016/j.bcab.2013.09.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Liu Y, Guo C, Liu CZ. Development of a mixed solvent system for the efficient resolution of (R, S)-2-octanol catalyzed by magnetite-immobilized lipase. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2013.12.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Aithal M, Belur PD. Enhancement of propyl gallate yield in nonaqueous medium using novel cell-associated tannase of Bacillus massiliensis. Prep Biochem Biotechnol 2013; 43:445-55. [PMID: 23581780 DOI: 10.1080/10826068.2012.745873] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Enzymatic synthesis of propyl gallate in organic solvent was studied using cell-associated tannase (EC 3.1.1.20) of Bacillus massiliensis. Lyophilized biomass showing tannase activity was used as the biocatalyst. The effects of solvent, surfactant treatment, and bioimprinting on the propyl gallate synthesis were studied and subsequently optimized. Among various solvents, benzene followed by hexane was found to be the most favorable. Treatment of the biocatalyst with Triton X-100 at a lower concentration (0.2% w/v), before lyophilization, increased the propyl gallate yield by 24.5% compared to the untreated biocatalyst. The biocatalyst was imprinted with various concentrations of gallic acid and tannic acid. Biocatalyst imprinted with tannic acid showed 50% enhancement in the propyl gallate yield compared to the non-imprinted biocatalyst.
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Affiliation(s)
- Mahesh Aithal
- Department of Chemical Engineering, National Institute of Technology Karnataka, Surathkal, Srinivasnagar, India
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30
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Li X, Xu L, Wang G, Zhang H, Yan Y. Conformation studies on Burkholderia cenocepacia lipase via resolution of racemic 1-phenylethanol in non-aqueous medium and its process optimization. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.09.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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31
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Stepankova V, Damborsky J, Chaloupkova R. Organic co-solvents affect activity, stability and enantioselectivity of haloalkane dehalogenases. Biotechnol J 2013; 8:719-29. [PMID: 23420811 DOI: 10.1002/biot.201200378] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 01/21/2013] [Accepted: 02/12/2013] [Indexed: 01/12/2023]
Abstract
Haloalkane dehalogenases are microbial enzymes with a wide range of biotechnological applications, including biocatalysis. The use of organic co-solvents to solubilize their hydrophobic substrates is often necessary. In order to choose the most compatible co-solvent, the effects of 14 co-solvents on activity, stability and enantioselectivity of three model enzymes, DbjA, DhaA, and LinB, were evaluated. All co-solvents caused at high concentration loss of activity and conformational changes. The highest inactivation was induced by tetrahydrofuran, while more hydrophilic co-solvents, such as ethylene glycol and dimethyl sulfoxide, were better tolerated. The effects of co-solvents at low concentration were different for each enzyme-solvent pair. An increase in DbjA activity was induced by the majority of organic co-solvents tested, while activities of DhaA and LinB decreased at comparable concentrations of the same co-solvent. Moreover, a high increase of DbjA enantioselectivity was observed. Ethylene glycol and 1,4-dioxane were shown to have the most positive impact on the enantioselectivity. The favorable influence of these co-solvents on both activity and enantioselectivity makes DbjA suitable for biocatalytic applications. This study represents the first investigation of the effects of organic co-solvents on the biocatalytic performance of haloalkane dehalogenases and will pave the way for their broader use in industrial processes.
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Affiliation(s)
- Veronika Stepankova
- Loschmidt Laboratories, Department of Experimental Biology and Research Centre for Toxic Compounds in the Environment, Masaryk University, Brno, Czech Republic
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32
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Effect of Additives and Process Variables on Enzymatic Hydrolysis of Macauba Kernel Oil (Acrocomia aculeata). INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2013. [DOI: 10.1155/2013/438270] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This work investigates the production of free fatty acids (FFAs) from the enzymatic hydrolysis of macauba kernel oil. Experiments evaluate the effect of different enzymes and the addition of salts, surfactants, and solvents to the reaction medium, as well as the effect of process variables. Results showed that FFA yields obtained for use of Lipozyme RM IM were higher than those obtained from Lipozyme TL IM and Lipozyme 435. The addition of salts and surfactants did not promote increased production of FFAs, while addingn-hexane and heptane to the reaction medium led to an increased reaction rate. It can be observed for the results that the temperature, water : oil mass ratio, and enzyme percentage had positive effects on the FFA yield in the range of 35°C to 55°C, 1 : 20 to 1 : 2, and 1 to 15%, respectively, and that, from these limits, increases in these variables did not cause significant increase in FFA yields. The addition of buffer promoted an increase in yield FFAs, as well as the pH of the buffer, and it was reported that an agitation of 400 rpm resulted in the highest yields in the investigated range.
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Biocatalytic synthesis of poly(δ-valerolactone) using a thermophilic esterase from archaeoglobus fulgidus as catalyst. Int J Mol Sci 2012. [PMID: 23202895 PMCID: PMC3497269 DOI: 10.3390/ijms131012232] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The ring-opening polymerization of δ-valerolactone catalyzed by a thermophilic esterase from the archaeon Archaeoglobus fulgidus was successfully conducted in organic solvents. The effects of enzyme concentration, temperature, reaction time and reaction medium on monomer conversion and product molecular weight were systematically evaluated. Through the optimization of reaction conditions, poly(δ-valerolactone) was produced in 97% monomer conversion, with a number-average molecular weight of 2225 g/mol, in toluene at 70 °C for 72 h. This paper has produced a new biocatalyst for the synthesis of poly(δ-valerolactone), and also deeper insight has been gained into the mechanism of thermophilic esterase-catalyzed ring-opening polymerization.
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Hydrolysis of virgin coconut oil using immobilized lipase in a batch reactor. Enzyme Res 2012; 2012:542589. [PMID: 22953055 PMCID: PMC3431091 DOI: 10.1155/2012/542589] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Accepted: 07/22/2012] [Indexed: 11/18/2022] Open
Abstract
Hydrolysis of virgin coconut oil (VCO) had been carried out by using an immobilised lipase from Mucor miehei (Lipozyme) in a water-jacketed batch reactor. The kinetic of the hydrolysis was investigated by varying the parameters such as VCO concentration, enzyme loading, water content, and reaction temperature. It was found that VCO exhibited substrate inhibition at the concentration more than 40% (v/v). Lipozyme also achieved the highest production of free fatty acids, 4.56 mM at 1% (w/v) of enzyme loading. The optimum water content for VCO hydrolysis was 7% (v/v). A relatively high content of water was required because water was one of the reactants in the hydrolysis. The progress curve and the temperature profile of the enzymatic hydrolysis also showed that Lipozyme could be used for free fatty acid production at the temperature up to 50°C. However, the highest initial reaction rate and the highest yield of free fatty acid production were at 45 and 40°C, respectively. A 100 hours of initial reaction time has to be compensated in order to obtain the highest yield of free fatty acid production at 40°C.
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Yu D, Wang Y, Wang C, Ma D, Fang X. Combination use of microwave irradiation and ionic liquid in enzymatic isomerization of xylose to xylulose. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2012.04.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wang Y, Pan Y, Zhang Z, Sun R, Fang X, Yu D. Combination use of ultrasound irradiation and ionic liquid in enzymatic isomerization of glucose to fructose. Process Biochem 2012. [DOI: 10.1016/j.procbio.2012.03.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Lipase entrapment in protamine-induced bio-zirconia particles: Characterization and application to the resolution of (R,S)-1-phenylethanol. Enzyme Microb Technol 2012; 51:40-6. [DOI: 10.1016/j.enzmictec.2012.03.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 03/15/2012] [Accepted: 03/29/2012] [Indexed: 11/18/2022]
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Yang Y, Ge Y, Zhao H, Shi W, Li Q. Lipase-catalyzed synthesis of poly(ε-caprolactone) and characterization of its solid-state properties. BIOCATAL BIOTRANSFOR 2011. [DOI: 10.3109/10242422.2011.638057] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Li Q, Li G, Yu S, Zhang Z, Ma F, Feng Y. Ring-opening polymerization of ɛ-caprolactone catalyzed by a novel thermophilic lipase from Fervidobacterium nodosum. Process Biochem 2011. [DOI: 10.1016/j.procbio.2010.08.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bitencourt TB, Nascimento MDG. The influence of organic solvent and ionic liquids on the selective formation of 2-(2-ethylhexyl)-3-phenyl-1,2-oxaziridine mediated by lipases. J PHYS ORG CHEM 2010. [DOI: 10.1002/poc.1778] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kirilin A, Sahin S, Mäki-Arvela P, Wärnå J, Salmi T, Murzin DY. Kinetics and modeling of (R,S)-1-phenylethanol acylation over lipase. INT J CHEM KINET 2010. [DOI: 10.1002/kin.20504] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Aziah Serri N, Kamaruddin A, Len KT. A continuous esterification of malonic acid with citronellol using packed bed reactor: Investigation of parameter and kinetics study. FOOD AND BIOPRODUCTS PROCESSING 2010. [DOI: 10.1016/j.fbp.2008.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Enantioselective transesterification of glycidol catalysed by a novel lipase expressed fromBacillus subtilis. Biotechnol Appl Biochem 2010; 56:1-6. [DOI: 10.1042/ba20100029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Xia X, Wang C, Yang B, Wang YH, Wang X. Water Activity Dependence of Lipases in Non-aqueous Biocatalysis. Appl Biochem Biotechnol 2009; 159:759-67. [PMID: 19455434 DOI: 10.1007/s12010-009-8618-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2008] [Accepted: 03/16/2009] [Indexed: 12/01/2022]
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Solvent effects on the enantioselectivity of the thermophilic lipase QLM in the resolution of (R, S)-2-octanol and (R, S)-2-pentanol. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2008.01.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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One-pot utilization of heterogeneous and enzymatic catalysis: Synthesis of R-1-phenylethyl acetate from acetophenone. Catal Today 2009. [DOI: 10.1016/j.cattod.2008.07.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ring-opening polymerization of ɛ-caprolactone catalyzed by a novel thermophilic esterase from the archaeon Archaeoglobus fulgidus. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2008.03.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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50
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