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Wang Y, Wang Z, Yu H, Teng H, Wu J, Xu J, Yang L. Enhancing the Thermostability and Catalytic Activity of the Lipase from Rhizopus oryzae via Introducing N-Glycosylation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38913033 DOI: 10.1021/acs.jafc.4c02623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Lipase from Rhizopus oryzae (ROL) exhibits remarkable sn-1,3 stereoselectivity and catalytic activity, but its poor thermostability limits its applications in the production of 1,3-dioleoyl-2-palmitoyl glycerol (OPO, a high-quality substitute for human milk fat). In this work, a semirational method was proposed to engineer the thermostability and catalytic activity of 4M (ROL mutant in our previous study). First, a computer-aided design is performed using 4M as a template, and N-glycosylation mutants are then recombinantly expressed and screened in Pichia pastoris, the optimal mutant N227 exhibited a half-life of 298.8 h at 45 °C, which is 7.23-folds longer than that of 4M. Its catalytic activity also reached 1043.80 ± 61.98 U/mg, representing a 29.2% increase compared to 4M (808.02 ± 47.02 U/mg). Molecular dynamics simulations of N227 suggested that the introduction of glycan enhanced the protein rigidity, while the strong hydrogen bonds formed between the glycan and the protein stabilized the lipase structure, thereby improving its thermostability. The acidolysis reaction between oleic acid (OA) and glycerol tripalmitate (PPP) was successfully carried out using immobilized N227, achieving a molar conversion rate of 90.2% for PPP. This engineering strategy guides the modification of lipases, while the glycomutants obtained in this study have potential applications in the biosynthesis of OPO.
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Affiliation(s)
- Yong Wang
- Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, No. 38 Zhe-da Road, Hangzhou, Zhejiang 310027, China
| | - Ziyuan Wang
- Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, No. 38 Zhe-da Road, Hangzhou, Zhejiang 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Centre, No. 733 Jianshe 3rd Road, Xiaoshan District, Hangzhou, Zhejiang 311200, China
| | - Huifen Yu
- Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, No. 38 Zhe-da Road, Hangzhou, Zhejiang 310027, China
| | - Haidong Teng
- Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, No. 38 Zhe-da Road, Hangzhou, Zhejiang 310027, China
| | - Jianping Wu
- Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, No. 38 Zhe-da Road, Hangzhou, Zhejiang 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Centre, No. 733 Jianshe 3rd Road, Xiaoshan District, Hangzhou, Zhejiang 311200, China
| | - Jiaqi Xu
- Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, No. 38 Zhe-da Road, Hangzhou, Zhejiang 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Centre, No. 733 Jianshe 3rd Road, Xiaoshan District, Hangzhou, Zhejiang 311200, China
| | - Lirong Yang
- Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, No. 38 Zhe-da Road, Hangzhou, Zhejiang 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Centre, No. 733 Jianshe 3rd Road, Xiaoshan District, Hangzhou, Zhejiang 311200, China
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Ge L, Cheng K, Lu W, Cui Y, Yin X, Jiang J, Li Y, Yao H, Liao J, Xue J, Shen Q. Enzymatic Preparation, In-Depth Molecular Analysis, and In Vitro Digestion Simulation of Palmitoleic Acid (ω-7)-Enriched Fish Oil Triacylglycerols. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:8859-8870. [PMID: 38564481 DOI: 10.1021/acs.jafc.3c09159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
In this study, an enzymatic reaction was developed for synthesizing pure triacylglycerols (TAG) with a high content of palmitoleic acid (POA) using fish byproduct oil. The characteristics of synthesized structural TAGs rich in POA (POA-TAG) were analyzed in detail through ultrahigh-performance liquid chromatography Q Exactive orbitrap mass spectrometry. Optimal conditions were thoroughly investigated and determined for reaction systems, including the use of Lipozyme TL IM and Novozym 435, 15 wt % lipase loading, substrate mass ratio of 1:3, and water content of 2.5 and 0.5 wt %, respectively, resulting in yields of 67.50 and 67.45% for POA-TAG, respectively. Multivariate statistical analysis revealed that TAG 16:1/16:1/20:4, TAG 16:1/16:1/16:1, TAG 16:1/16:1/18:1, and TAG 16:0/16:1/18:1 were the main variables in Lipozyme TL IM and Novozym 435 enzyme-catalyzed products under different water content conditions. Finally, the fate of POA-TAG across the gastrointestinal tract was simulated using an in vitro digestion model. The results showed that the maximum release of free fatty acids and apparent rate constants were 71.44% and 0.0347 s-1, respectively, for POA-TAG lipids, and the physical and structural characteristics during digestion depended on their microenvironments. These findings provide a theoretical basis for studying the rational design of POA-structural lipids and exploring the nutritional and functional benefits of POA products.
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Affiliation(s)
- Lijun Ge
- Collaborative Innovation Center of Seafood Deep Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Keyun Cheng
- Panvascular Diseases Research Center, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, China
| | - Weibo Lu
- Collaborative Innovation Center of Seafood Deep Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Yiwei Cui
- Collaborative Innovation Center of Seafood Deep Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Xuelian Yin
- Collaborative Innovation Center of Seafood Deep Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Jianjun Jiang
- Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Taizhou 318020, China
| | - Yijing Li
- Department of Cardiology, Ningbo Ninth Hospital, Ningbo 315020, China
| | - Haiming Yao
- Yunhe Street Community Health Service Center, Linping, Hangzhou 311100, China
| | - Jie Liao
- Collaborative Innovation Center of Seafood Deep Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Jing Xue
- Collaborative Innovation Center of Seafood Deep Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Qing Shen
- Panvascular Diseases Research Center, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou 324000, China
- Laboratory of Food Nutrition and Clinical Research, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
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He L, Zeng C, Wei L, Xu L, Song F, Huang J, Zhong N. Fabrication of immobilized lipases for efficient preparation of 1,3-dioleoyl-2-palmitoylglycerol. Food Chem 2023; 408:135236. [PMID: 36549162 DOI: 10.1016/j.foodchem.2022.135236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/25/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
This study aims to fabricate immobilized lipases for efficient preparation of 1,3-dioleoyl-2-palmitoyl-glycerol (OPO) through acidolysis of glycerol tripalmitate (PPP). Twelve (three types) supports and five lipases were studied carefully. Among them, the immobilized Thermomyces lanuginosa lipase (TLL) samples exhibited overall better performance than that of other immobilized lipases. Particularly, organic groups functionalized SBA-15 (R-SBA-15) supported TLL (TLL@R-SBA-15) samples gave PPP conversion from 97.70 to 99.00 % and OPO content from 59.52 to 64.73 %. After optimization, PPP conversion up to 99.07 %, OPO content 73.15 % and sn-2 palmitic acid content 90.09 % were obtained with TLL@C18H37-SBA-15 as catalyst. Moreover, TLL@C18H37-SBA-15 exhibited better acidolysis performance from 50 °C than that from 60 to 80 °C, which helped inhibit acyl migration. In addition, after 5 cycles of reuse, TLL@C18H37-SBA-15 retained 81.04 % (based on OPO content) and 98.88 % (based on sn-2 palmitic acid content) of its initial activity, indicating it had an attractive prospect in future applications.
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Affiliation(s)
- Lihong He
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Can Zeng
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Lingfeng Wei
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Li Xu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Fenglin Song
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Jianrong Huang
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Nanjing Zhong
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan 528458, China.
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4
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Zhang YJ, Wei LT, Zhou MP, Wei C, Yu XJ. Enantioselective resolution of (R,S)-DMPM to prepare (R)-DMPM by an adsorbed-covalent crosslinked esterase PAE07 from Pseudochrobactrum asaccharolyticum WZZ003. Bioprocess Biosyst Eng 2023; 46:171-181. [PMID: 36464751 DOI: 10.1007/s00449-022-02821-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/16/2022] [Indexed: 12/05/2022]
Abstract
(R)-N-(2,6-dimethylphenyl) aminopropionic acid methyl ester ((R)-DMPM) is an important chiral intermediate of the fungicide N-(2,6-Dimethylphenyl)-N-(methoxyacetyl)-alanine methyl ester ((R)-Metalaxyl). In this study, (1) D3520 (macroporous acrylic anion resin), selected from the ten resins, was used to immobilize the esterase from Pseudochrobactrum asaccharolyticum WZZ003 (PAE07) for resoluting the (R,S)-DMPM to obtain (R)-DMPM. (2) Up to 20 g/L PAE07 could be immobilized onto D3520 with a high enzymatic activity of 32.4 U/g. Moreover, the Km and Vmax values of 19.1 mM and 2.8 mM/min for D3520-immobilized PAE07 indicated its high activity and stereoselectivity. (3) The optimal temperature and pH for the immobilized PAE07 were 40 ℃ and 8.0, and substrate concentration was up to 0.35 M. After 15 h reaction, the conversion rate from (R,S)-DMPM to (R)-DMPM was 48.0% and the e.e.p and E values were 99.5% and 1393.0, respectively. In scale-up resolution, 200 g/L substrate and 12.5 g immobilized esterase PAE07 condition, a conversion rate from substrate to product of 48.1% and a product e.e.p of 98% were obtained within 12 h, with the activity of immobilized PAE07 retained 80.2% after 5 cycles of reactions. These results indicated that the D3520-immobilized esterase PAE07 had great potential for enzymatic resolution of (R,S)-DMPM to prepare (R)-Metalaxyl.
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Affiliation(s)
- Yin-Jun Zhang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang, 313299, China
| | - Li-Tian Wei
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang, 313299, China
| | - Ming-Peng Zhou
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang, 313299, China
| | - Chun Wei
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang, 313299, China.
| | - Xin-Jun Yu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang, 313299, China.
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5
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Peng Y, Wang M, Huang X, Yang F, Shi Y, Liao C, Yu D. Investigation into the magnetic immobilization of lipase and its application in the synthesis of structured triacylglycerols. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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6
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Huang Y, Liu W, Luo X, Zhao M, Liu T, Feng F. Synthesis and characterization of medium- and long-chain structural lipid rich in α-linolenic acid and lauric acid. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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7
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A comparative study of human milk fat substitute from Rhodococcus opacus and plant-oil based commercial products. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Immobilization of Rhizomucor miehei lipase on magnetic multiwalled carbon nanotubes towards the synthesis of structured lipids rich in sn-2 palmitic acid and sn-1,3 oleic acid (OPO) for infant formula use. Food Chem 2022; 390:133171. [PMID: 35551020 DOI: 10.1016/j.foodchem.2022.133171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 04/30/2022] [Accepted: 05/04/2022] [Indexed: 11/24/2022]
Abstract
Nowadays, breast milk is considered as the ideal food for infants owing to the most common oleic acid-palmitic acid-oleic acid (OA-PA-OA) fatty acid distribution of the human milk fat (HMF). This study reports the synthesis of 1,3-dioleoyl-2-palmotoylglycerol (OPO)-rich human milk fat substitutes in a two-step enzymatic acidolysis reaction with Rhizomucor miehei lipase (RML) immobilized on magnetic multi-walled carbon nanotubes(mMWCNTs). The immobilized RML (RML-mMWCNTs) showed better thermal and pH stability, convenient recovery and reusability than the free soluble form. Under optimized reaction conditions (1:8 tripalmitin (PPP)/OA, 10%wt. enzyme, 50 °C, 5 h), PA content at the sn-2 position and OA incorporation at the sn-1,3 positions reached 93.46% and 59.54%, respectively. Comparison tests have also showed that RML-mMWCNTs has better catalytic activity and reusability than the commercial lipase Lipozyme RM IM. The results suggest that RML-mMWCNTs is a promising biocatalyst for the synthesis of OPO-rich TAGs with potential use in infant formulas.
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9
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Chemical modification of clay nanocomposites for the improvement of the catalytic properties of Lipase A from Candida antarctica. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.05.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Cui R, Che X, Li L, Sun-Waterhouse D, Wang J, Wang Y. Engineered lipase from Janibacter sp. with high thermal stability to efficiently produce long-medium-long triacylglycerols. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Immobilization Techniques on Bioprocesses: Current Applications Regarding Enzymes, Microorganisms, and Essential Oils. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02780-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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12
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Hussin NH, Wahab RA, Elias N, Jacob AG, Zainal-Abidin MH, Abdullah F, Sulaiman NJ, Misson M. Electrospun Magnetic Nanocellulose-Polyethersulfone-Conjugated Aspergillus oryzae Lipase for Synthesis of Ethyl Valerate. MEMBRANES 2021; 11:972. [PMID: 34940473 PMCID: PMC8707156 DOI: 10.3390/membranes11120972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 11/20/2022]
Abstract
A novel greener MNC/PES membrane was developed through an electrospinning technique for lipase immobilization to catalyze the synthesis of ethyl valerate (EV). In this study, the covalent immobilization of Aspergillus oryzae lipase (AOL) onto an electrospun nanofibrous membrane consisting of magnetic nanocellulose (MNC) and polyethersulfone (PES) to produce EV was statistically optimized. Raman spectroscopy, Fourier-transform infrared spectroscopy: attenuated total reflection, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, thermal gravimetric analysis (TGA), and differential thermal gravimetric (DTG) of MNC/PES-AOL demonstrated that AOL was successfully immobilized onto the fibers. The Taguchi design-assisted immobilization of AOL onto MNC/PES fibers identified that 1.10 mg/mL protein loading, 4 mL reaction volume, 250 rpm stirring rate, and 50 °C were optimal to yield 72.09% of EV in 24 h. The thermal stability of MNC/PES-AOL was improved by ≈20% over the free AOL, with reusability for up to five consecutive esterification cycles while demonstrating an exceptional half-life of 120 h. Briefly, the electrospun MNC/PES fibers that immobilized AOL showed promising applicability in yielding relatively good EV levels. This study suggests that using MNC as fillers in a PES to improve AOL activity and durability for a longer catalytic process could be a viable option.
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Affiliation(s)
- Nurul Hidayah Hussin
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia; (N.H.H.); (N.E.); (A.G.J.); (M.H.Z.-A.); (F.A.)
- Enzyme Technology and Green Synthesis Group, Faculty of Science, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
| | - Roswanira Abdul Wahab
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia; (N.H.H.); (N.E.); (A.G.J.); (M.H.Z.-A.); (F.A.)
- Enzyme Technology and Green Synthesis Group, Faculty of Science, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
| | - Nursyafiqah Elias
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia; (N.H.H.); (N.E.); (A.G.J.); (M.H.Z.-A.); (F.A.)
- Enzyme Technology and Green Synthesis Group, Faculty of Science, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
| | - Adikwu Gowon Jacob
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia; (N.H.H.); (N.E.); (A.G.J.); (M.H.Z.-A.); (F.A.)
- Enzyme Technology and Green Synthesis Group, Faculty of Science, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
- Department of Applied Chemistry, Federal University Dutsin-Ma (FUDMA), Dutsin-Ma P.M.B 5001, Katsina State, Nigeria
| | - Mohamad Hamdi Zainal-Abidin
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia; (N.H.H.); (N.E.); (A.G.J.); (M.H.Z.-A.); (F.A.)
| | - Faizuan Abdullah
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia; (N.H.H.); (N.E.); (A.G.J.); (M.H.Z.-A.); (F.A.)
| | - Nurul Jannah Sulaiman
- Department of Bioprocess & Polymer Engineering, School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia;
| | - Mailin Misson
- Biotechnology Research Institute, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia
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Ethanol as additive enhance the performance of immobilized lipase LipA from Pseudomonas aeruginosa on polypropylene support. ACTA ACUST UNITED AC 2021; 31:e00659. [PMID: 34367924 PMCID: PMC8326728 DOI: 10.1016/j.btre.2021.e00659] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 07/14/2021] [Indexed: 11/20/2022]
Abstract
Immobilization is practical to upgrade enzymes, increasing their performance and expanding their applications. The recombinant, solvent tolerant lipase LipA PSA01 from Pseudomonas aeruginosa was immobilized on polypropylene Accurel® MP1004 to improve its performance. We investigated the effect of ethanol as an additive during the immobilization process at three concentrations (20%, 25%, and 30%) on the operational behavior of the enzyme. The immobilization efficiency was higher than 92%, and the immobilized enzymes showed hyperactivation and thermal resistance depending on the concentration of ethanol. For example, at 70 °C, the free enzyme lost the activity, while the prepared one with ethanol 25% conserved a residual activity of up to 73.3% (∆ T15 50 = 27.1 °C). LipA immobilized had an optimal pH value lower than that of the free enzyme, and the organic solvent tolerance of the immobilized enzymes depended on the ethanol used. Hence, the immobilized enzyme with ethanol 25% showed hyperactivation to more solvents than the soluble enzyme. Remarkable stability towards methanol (up to 8 folds) was evidenced in all the immobilized preparations. The immobilized enzyme changed their chemo preference, and it hydrolyzed oils preferentially with short-chain than those with long-chain. LipA had a notable shelf-life after one year, keeping its activity up to 87%. Ethanol facilitated the access of the enzyme to the hydrophobic support and increased its activity and stability according to the amount of ethanol added.
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14
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Cui R, Xu L, Lan D, Yang B, Wang Y. A novel sn-1,3 specific lipase from Janibacter sp. as catalysts for the high-yield synthesis of long-medium-long type structured triacylglycerols. Food Chem 2021; 366:130523. [PMID: 34303206 DOI: 10.1016/j.foodchem.2021.130523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 06/20/2021] [Accepted: 07/02/2021] [Indexed: 01/08/2023]
Abstract
Our study offers a novel sn-1,3 specific lipase MAJ1 from marine member Janibacter sp. strain HTCC2649 for preparing long-medium-long (LML) type structured triacylglycerols (TAGs). Firstly, the resin ECR1030 was selected as a suitable support for the immobilization of lipase MAJ1. An efficient synthesis of LML-type structured TAGs by the immobilized lipase MAJ1-catalyzed interesterification of methyl palmitate and tricaprylin was studied in a solvent-free system. The reaction conditions, including substrate molar ratio, temperature and enzyme loading, were optimized. Under the optimum conditions (immobilized lipase MAJ1 of 45 U/g, substrate molar ratio of 4:1, temperature of 35 °C, reaction time of 24 h), the structured TAGs with double long chains (DLCST) were obtained in a yield of 44.3 mol%. Secondly, multi-dimensional mass spectrometry-based shotgun lipidomics (MDMS-SL) was employed to quantify each TAG positional isomer in DLCST. The content of 1,3-dipalmitoyl-2-capryloyl-sn-glycerol in DLCST was 97.6% determined by the MDMS-SL technology.
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Affiliation(s)
- Ruiguo Cui
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Long Xu
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China
| | - Dongming Lan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Bo Yang
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China
| | - Yonghua Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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15
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Peng B, Luo T, Chen F, Wang M, Fu JH, Zheng LF, Li J, Deng ZY. Stability comparison of four lipases and catalytic mechanism during the synthesis of 1,3-di-oleic-2-medium chain triacylglycerols in a trace water-in-oil system: Experimental analyses and computational simulations. J Food Biochem 2021; 45:e13667. [PMID: 33837552 DOI: 10.1111/jfbc.13667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/02/2021] [Accepted: 01/25/2021] [Indexed: 11/28/2022]
Abstract
In the present study, a kind of structured lipids, namely 1,3-di-oleic-2-medium chain (OMO) triacylglycerols, were synthesized through lipase-catalyzed reactions using coconut oil and rapeseed acid as materials in a trace water-in-oil system. Experimental analysis and computational simulations were undertaken to compare the stability of four lipases including Lipozyme RMIM, Lipozyme TLIM, Novozym 435, and Aspergillus oryzae immobilized lipase (AOIM), and illustrate catalytic mechanism of Novozym 435 during the synthesis of OMO. Fourier transform infrared and molecular dynamics simulation results demonstrated that a decrease in ordered structure (α-helix and β-sheet) led to a reduction in enzyme activity. Compared with Lipozyme RMIM and Novozym 435, Lipozyme TLIM and AOIM exhibited better stability due to a short-chain lid in TLIM, which covers activity sites, and hydrogen bonds formed between activity center of AOIM and water. Among four lipases, AOIM exhibited best catalytic performance: a OMO yield of 30.7% at 3 hr and a good stability of long term (48 hr). Density functional theory results demonstrated that specifically, during the synthesis of OMO triacylglycerol, the addition of Novozym 435 (derived from Candida antarctica lipase B, CALB) substantially lowered reaction barriers (64.4 KJ/mol with CALB vs. 332.7 KJ/mol with no lipase), aiding in the generation of OMO because of the formations of transitional tetrahedral intermediates. A trace water-in-oil system was a green and efficient alternative for lipase-catalyzed production of OMO, and this study provided crucial insights into the stability/instability and catalytic mechanisms of lipase in the synthesis of structured lipids. PRACTICAL APPLICATIONS: We compared the stability of Lipozyme RMIM, Lipozyme 435, Lipozyme TLIM, and AOIM during the synthesis of the OMO triacylglycerols in a trace water-in-oil system, where exhibited a high catalytic activity of lipase in water-oil interface. AOIM had the highest stability and showed the best catalytic performance due to the formation of hydrogen bonds. Besides, for the first time, the transition tetrahedral structure was revealed in the enzymatic synthesis of medium- and long-chain triacylglycerols. This study provides a rational approach to compare lipase stability and a possible hint to choose appropriate enzyme in a specific catalytic condition.
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Affiliation(s)
- Bin Peng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Ting Luo
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Fang Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China.,School of Public Health, Nanchang University, Nanchang, China
| | - Mei Wang
- The State Centre of Quality Supervision and Inspection for Camellia Products, Ganzhou, China
| | - Jin-Heng Fu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Liu-Feng Zheng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Jing Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Ze-Yuan Deng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
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16
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Li Y, Li C, Feng F, Wei W, Zhang H. Synthesis of medium and long-chain triacylglycerols by enzymatic acidolysis of algal oil and lauric acid. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110309] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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17
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Zhang LS, Chu MY, Zong MH, Yang JG, Lou WY. Facile and Green Production of Human Milk Fat Substitute through Rhodococcus opacus Fermentation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:9368-9376. [PMID: 32700528 DOI: 10.1021/acs.jafc.0c03185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Human milk fat substitute (HMFS) is a class of structured lipids widely used in infant formulas. Herein, HMFS was prepared by Rhodococcus opacus fermentation. The substrate oils suitable for HMFS production were coconut oil (66.1-57.5%), soybean oil (17.5-26.5%), high oleic acid sunflower oil (5.4-4.5%), Antarctic krill oil (9-9.5%), and fungal oil (2%). Six HMFSs were prepared, among which HMFS V and VI were similar to human milk fat from Chinese in terms of fatty acid composition and triacylglycerol species. The sn-2 position of HMFS was occupied by palmitic acid (49.31 and 43.48% in HMFS V and VI, respectively). The major triacylglycerols were OPL, OPO, and LPL, accounting for 15.90, 9.49, and 6.84 and 17.52, 8.44, and 8.55% in HMFS V and VI, respectively. This study is the first to prepare structured lipids intended for infant formula through fermentation, providing a novel strategy for the edible oil industry.
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Affiliation(s)
- Lin-Shang Zhang
- School of Food Science and Engineering, South China University of Technology, Wushan Road, Guangzhou 510641, China
| | - Mei-Yun Chu
- School of Food Science and Engineering, South China University of Technology, Wushan Road, Guangzhou 510641, China
| | - Min-Hua Zong
- School of Food Science and Engineering, South China University of Technology, Wushan Road, Guangzhou 510641, China
| | - Ji-Guo Yang
- South China Institute of Collaborative Innovation, Xincheng Road, Dongguan 523808, China
| | - Wen-Yong Lou
- School of Food Science and Engineering, South China University of Technology, Wushan Road, Guangzhou 510641, China
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18
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Zhang LS, Chu MY, Zong MH, Yang JG, Lou WY. Carbon source modify lipids composition of Rhodococcus opacus intended for infant formula. J Biotechnol 2020; 319:8-14. [PMID: 32470464 DOI: 10.1016/j.jbiotec.2020.05.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 05/04/2020] [Accepted: 05/20/2020] [Indexed: 01/24/2023]
Abstract
Human milk fat substitutes (HMFSs) are the structured lipids intended for infant formula. It provides energy and essential fatty acid for infant. HMFSs are mainly prepared by enzymatic method. In this study, we aim to explore the potential for producing HMFSs by fermentation using R. opacus. The results indicated that different compounds with chain length from 12 to 18, used as carbon source, could be incorporated into triacylglycerols directly. Polyunsaturated fatty acids in term of ARA, EPA, DHA could enter the kennedy pathway directly and involved in the biosynthesis of triacylglycerols. GC, UPLC-MS and 13C-NMR analysis demonstrated that typical structured lipids β-OPL (40.09%) was synthesized in R. opacus. Transcriptome analysis revealed that β-oxidation, fatty acid elongation and kennedy pathways existed in R. opacus. It was concluded that fatty acid supplied as carbon source could enter the kennedy pathways directly or via the de novo fatty acid biosynthesis pathway depending on the chain length, thus, affect the triacylglycerol species formed in the Rhodococcus opacus.
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Affiliation(s)
- Lin-Shang Zhang
- School of Food Science and Engineering, South China University of Technology, Wushan Road, Guangzhou 510641, China
| | - Mei-Yun Chu
- School of Food Science and Engineering, South China University of Technology, Wushan Road, Guangzhou 510641, China
| | - Min-Hua Zong
- School of Food Science and Engineering, South China University of Technology, Wushan Road, Guangzhou 510641, China
| | - Ji-Guo Yang
- South China Institute of Collaborative Innovation, Xincheng Road, Dongguan 523808, China
| | - Wen-Yong Lou
- School of Food Science and Engineering, South China University of Technology, Wushan Road, Guangzhou 510641, China.
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19
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Zhang L, Chu M, Zong M, Yang J, Lou W. Efficient Production of 1,3‐Dioleoyl‐2‐Palmitoylglycerol through
Rhodococcus opacus
Fermentation. J AM OIL CHEM SOC 2020. [DOI: 10.1002/aocs.12373] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Lin‐Shang Zhang
- School of Food Science and EngineeringSouth China University of Technology Wushan Road, Guangzhou 510641 China
| | - Mei‐Yun Chu
- School of Food Science and EngineeringSouth China University of Technology Wushan Road, Guangzhou 510641 China
| | - Min‐Hua Zong
- School of Food Science and EngineeringSouth China University of Technology Wushan Road, Guangzhou 510641 China
| | - Ji‐Guo Yang
- School of Food Science and EngineeringSouth China University of Technology Wushan Road, Guangzhou 510641 China
- South China Institute of Collaborative Innovation Xincheng Road, Dongguan 523808 China
| | - Wen‐Yong Lou
- School of Food Science and EngineeringSouth China University of Technology Wushan Road, Guangzhou 510641 China
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Gene cloning, expression, purification and characterization of a sn-1,3 extracellular lipase from Aspergillus niger GZUF36. Journal of Food Science and Technology 2020; 57:2669-2680. [PMID: 32549617 DOI: 10.1007/s13197-020-04303-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/22/2020] [Accepted: 02/18/2020] [Indexed: 01/08/2023]
Abstract
Sn-1,3 extracellular Aspergillus niger GZUF36 lipase (EXANL1) has wide application potential in the food industry. However, the A. niger strain has defects such as easy degradation and instability in the expression of sn-1,3 lipase. To obtain a stable expression of this lipase and its subsequent enzymatic properties, the gene encoding EXANL1 was cloned and expressed in Escherichia coli BL21 (DE3) cells using pET-28a as the expression vector. The temperature-induced conditions were optimized, and we successfully achieved its active expression in E. coli. These conditions significantly influenced the active expression of EXANL1 (P < 0.05), and the highest enzyme activity of the supernatant of lysis cells expressed at 20 °C was at 7.02 ± 0.05 U/mL. The expressed recombinant EXANL1 was purified using Ni-NTA, showing an estimated relative molecular mass of 35 kDa. The recombinant EXANL1 exhibited maximum activity at 35 °C and pH 4.0, with a wide acid pH range. Thin-layer chromatography analysis showed that the enzyme displayed sn-1,3 positional selectivity toward triolein. The recombinant EXANL1 could maintain its relative activities (> 80%) after 24 h of incubation at pH 3-10, suggesting its suitability for a wide range of industrial applications. After comparing these properties with those of the other A. niger lipases, we found that some key amino acids may play a decisive role in enzymology. This work laid a foundation for the stable expression of the EXANL1 gene and its potential industrial application.
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21
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Facin BR, Melchiors MS, Valério A, Oliveira JV, Oliveira DD. Driving Immobilized Lipases as Biocatalysts: 10 Years State of the Art and Future Prospects. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00448] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Bruno R. Facin
- Department of Chemical and Food Engineering, UFSC, P.O. Box 476, 88040-900, Florianópolis, Santa Catarina, Brazil
| | - Marina S. Melchiors
- Department of Chemical and Food Engineering, UFSC, P.O. Box 476, 88040-900, Florianópolis, Santa Catarina, Brazil
| | - Alexsandra Valério
- Department of Chemical and Food Engineering, UFSC, P.O. Box 476, 88040-900, Florianópolis, Santa Catarina, Brazil
| | - J. Vladimir Oliveira
- Department of Chemical and Food Engineering, UFSC, P.O. Box 476, 88040-900, Florianópolis, Santa Catarina, Brazil
| | - Débora de Oliveira
- Department of Chemical and Food Engineering, UFSC, P.O. Box 476, 88040-900, Florianópolis, Santa Catarina, Brazil
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22
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Park JY, Park KM, Yoo Y, Yu H, Lee CJ, Jung HS, Kim K, Chang PS. Catalytic characteristics of a sn-1(3) regioselective lipase from Cordyceps militaris. Biotechnol Prog 2018; 35:e2744. [PMID: 30421587 DOI: 10.1002/btpr.2744] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 08/10/2018] [Indexed: 11/06/2022]
Abstract
A total of 39 agricultural products were screened for natural sources of lipases with distinctive positional specificity. Based on this, Cordyceps militaris lipase (CML) was selected and subsequently purified by sequential chromatography involving anion-exchange, hydrophobic-interaction, and gel-permeation columns. As a result of the overall purification procedure, a remarkable increase in the specific activity of the CML (4.733 U/mg protein) was achieved, with a yield of 2.47% (purification fold of 94.54). The purified CML has a monomeric structure with a molecular mass of approximately 62 kDa. It was further identified as a putative extracellular lipase from C. militaris by the partial sequence analysis using ESI-Q-TOF MS. In a kinetic study of the CML-catalyzed hydrolysis, the values of Vmax , Km , and kcat were determined to be 4.86 μmol·min-1 ·mg-1 , 0.07 mM, and 0.29 min-1 , respectively. In particular, the relatively low Km value indicated that CML has a high affinity for its substrate. With regard to positional specificity, CML selectively cleaved triolein at the sn-1 or 3 positions of glycerol backbone, releasing 1,2(2,3)-diolein as the major products. Therefore, CML can be considered a distinctive biocatalyst with sn-1(3) regioselectivity. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 35: e2744, 2019.
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Affiliation(s)
- Jun-Young Park
- Dept. of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Kyung-Min Park
- Dept. of Food Science and Biotechnology, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Yoonjung Yoo
- Dept. of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hyunjong Yu
- Dept. of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Chang Joo Lee
- Dept. of Food Science and Biotechnology, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Ho-Sup Jung
- Center for Food and Bioconvergence, Seoul National University, Seoul, 08826, Republic of Korea
| | - Keesung Kim
- Research Inst. of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Pahn-Shick Chang
- Dept. of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea.,Center for Food and Bioconvergence, Seoul National University, Seoul, 08826, Republic of Korea.,Research Inst. of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
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23
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Zheng JY, Lan X, Li XJ, Huang LJ, Zhang YJ, Wang Z. High-level expression and characterization of a stereoselective lipase from Aspergillus oryzae in Pichia pastoris. Protein Expr Purif 2018; 155:1-7. [PMID: 30389593 DOI: 10.1016/j.pep.2018.10.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 09/20/2018] [Accepted: 10/30/2018] [Indexed: 11/20/2022]
Abstract
Pichia pastoris expression is a mature and efficient eukaryotic expression system. In this work, Aspergillus oryzae lipase (AOL, with the molecular mass of 28 kDa), which can perform highly stereoselective hydrolysis of (R, S)-methyl 2-(4-hydroxyphenoxy) propanoate, was expressed in P. pastoris X-33. The specific activity of AOL was 432 U/mg, which was obtained by fed-batch cultivation in a 5 L bioreactor using a methanol feeding strategy. After fermentation, the supernatant was concentrated by ultrafiltration with a 10 kDa cut-off membrane and purified with DEAE-Sepharose™ FF ion-exchange chromatography and phenyl Seflnose™ 6 FF hydrophobic interaction chromatography. The purified lipase activity reached 5509 U/mg. AOL showed high activity toward short-chain triacylglyceride (C4), and the optimum temperature and pH were 40 °C and 8.0, respectively. The purified enzyme activity was inhibited by Zn2+ and Cu2+. Moreover, the Km and Vmax values were 1 mM and 32.89 mmol/min, respectively.
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Affiliation(s)
- Jian-Yong Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China
| | - Xing Lan
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China
| | - Xiao-Jun Li
- School of Medicine and Life Sciences, Xinyu University, Xinyu, Jiangxi, 338004, China
| | - Li-Juan Huang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China
| | - Yin-Jun Zhang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China
| | - Zhao Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China.
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24
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Zheng M, Wang S, Xiang X, Shi J, Huang J, Deng Q, Huang F, Xiao J. Facile preparation of magnetic carbon nanotubes-immobilized lipase for highly efficient synthesis of 1,3-dioleoyl-2-palmitoylglycerol-rich human milk fat substitutes. Food Chem 2017; 228:476-483. [DOI: 10.1016/j.foodchem.2017.01.129] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 12/31/2016] [Accepted: 01/26/2017] [Indexed: 01/18/2023]
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25
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Aspergillus oryzaeLipase-Catalyzed Synthesis of Dioleoyl; Palmitoyl-Rich Triacylglycerols in Two Reactors. J AM OIL CHEM SOC 2016. [DOI: 10.1007/s11746-016-2887-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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