1
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de Melo VS, de Melo RR, Rade LL, Miyamoto RY, Milan N, de Souza CM, de Oliveira VM, Simões IT, de Lima EA, Guilherme EPX, Pinheiro GMS, Inacio Ramos CH, Persinoti GF, Generoso WC, Zanphorlin LM. Thermoascus aurantiacus harbors an esterase/lipase that is highly activated by anionic surfactant. Biochem Biophys Res Commun 2024; 733:150572. [PMID: 39191187 DOI: 10.1016/j.bbrc.2024.150572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Revised: 08/06/2024] [Accepted: 08/19/2024] [Indexed: 08/29/2024]
Abstract
Fungal lipolytic enzymes play crucial roles in various lipid bio-industry processes. Here, we elucidated the biochemical and structural characteristics of an unexplored fungal lipolytic enzyme (TaLip) from Thermoascus aurantiacus var. levisporus, a strain renowned for its significant industrial relevance in carbohydrate-active enzyme production. TaLip belongs to a poorly understood phylogenetic branch within the class 3 lipase family and prefers to hydrolyze mainly short-chain esters. Nonetheless, it also displays activity against natural long-chain triacylglycerols. Furthermore, our analyses revealed that the surfactant sodium dodecyl sulfate (SDS) enhances the hydrolytic activity of TaLip on pNP butyrate by up to 5.0-fold. Biophysical studies suggest that interactions with SDS may prevent TaLip aggregation, thereby preserving the integrity and stability of its monomeric form and improving its performance. These findings highlight the resilience of TaLip as a lipolytic enzyme capable of functioning in tandem with surfactants, offering an intriguing enzymatic model for further exploration of surfactant tolerance and activation in biotechnological applications.
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Affiliation(s)
- Vandierly Sampaio de Melo
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil; Faculty of Food Engineering, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Ricardo Rodrigues de Melo
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Letícia Leandro Rade
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Renan Yuji Miyamoto
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Natalia Milan
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil; Faculty of Food Engineering, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Claudia Maria de Souza
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Vinicius Martins de Oliveira
- Brazilian Biosciences National Laboratory (LNBIO), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Isabelle Taira Simões
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil; Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Evandro Antonio de Lima
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Ederson Paulo Xavier Guilherme
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | | | | | - Gabriela Felix Persinoti
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Wesley Cardoso Generoso
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Leticia Maria Zanphorlin
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil.
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2
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Liow MY, Chan ES, Ng WZ, Song CP. Stabilization of Eversa® Transform 2.0 lipase with sorbitol to enhance the efficiency of ultrasound-assisted biodiesel production. Int J Biol Macromol 2024; 276:133817. [PMID: 39002902 DOI: 10.1016/j.ijbiomac.2024.133817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/26/2024] [Accepted: 07/09/2024] [Indexed: 07/15/2024]
Abstract
Ultrasound technology has emerged as a promising tool for enhancing enzymatic biodiesel production, yet the cavitation effect induced can compromise enzyme stability. This study explored the efficiency of polyols in enhancing lipase stability under ultrasound conditions to further improve biodiesel yield. The incorporation of sorbitol resulted in the highest fatty acid methyl ester (FAME) content in the ultrasound-assisted biodiesel production catalyzed by Eversa® Transform 2.0 among the investigated polyols. Furthermore, sorbitol enhanced the stability of the lipase, allowing it to tolerate up to 100 % ultrasound amplitude, compared to 60 % amplitude in its absence. Enzyme activity assays revealed that sorbitol preserved 99 % of the lipase activity, in contrast to 84 % retention observed without sorbitol under an 80 % ultrasound amplitude. Circular dichroism (CD) and fluorescence spectroscopy analyses confirmed that sorbitol enhanced lipase rigidity and preserved its conformational structure under ultrasound exposure. Furthermore, employing a stepwise methanol addition strategy in ultrasound-assisted reactions with sorbitol achieved an 81.2 wt% FAME content in 8 h with only 0.2 wt% enzyme concentration. This promising result highlights the potential of sorbitol as a stabilizing agent in ultrasound-assisted enzymatic biodiesel production, offering a viable approach for enhancing biodiesel yield and enzyme stability in industrial applications.
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Affiliation(s)
- Min Ying Liow
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia
| | - Eng-Seng Chan
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia.
| | - Wei Zhe Ng
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia
| | - Cher Pin Song
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia.
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3
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Nie H, Zhang Y, Li M, Wang W, Wang Z, Zheng J. Expression of microbial lipase in filamentous fungus Aspergillus niger: a review. 3 Biotech 2024; 14:172. [PMID: 38841267 PMCID: PMC11147998 DOI: 10.1007/s13205-024-03998-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/28/2024] [Indexed: 06/07/2024] Open
Abstract
Lipase has high economic importance and is widely used in biodiesel, food, detergents, cosmetics, and pharmaceutical industries. The rapid development of synthetic biology and system biology has not only paved the way for comprehensively understanding the efficient operation mechanism of Aspergillus niger cell factories but also introduced a new technological system for creating and optimizing high-efficiency A. niger cell factories. In this review, all relevant data on microbial lipase enzyme sources and general properties are gathered and updated. The relationship between A. niger strain morphology and protein production is discussed. The safety of A. niger strain is investigated to ensure product safety. The biotechnologies and factors influencing lipase expression in A. niger are summarized. This review focuses on various strategies to improve lipase expression in A. niger. The summary of these methods and the application of the gene editing technology CRISPR/Cas9 system can further improve the efficiency of constructing the engineered lipase-producing A. niger.
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Affiliation(s)
- Hongmei Nie
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 China
| | - Yueting Zhang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 China
| | - Mengjiao Li
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 China
| | - Weili Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 China
| | - Zhao Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 China
| | - Jianyong Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 China
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4
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Liow MY, Chan ES, Ng WZ, Song CP. Enhancing efficiency of ultrasound-assisted biodiesel production catalyzed by Eversa® Transform 2.0 at low lipase concentration: Enzyme characterization and process optimization. Int J Biol Macromol 2024; 271:132538. [PMID: 38782325 DOI: 10.1016/j.ijbiomac.2024.132538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/29/2024] [Accepted: 05/19/2024] [Indexed: 05/25/2024]
Abstract
This study focused on the ultrasound-assisted transesterification of simulated low-quality feedstocks using a low-cost liquid lipase Eversa® Transform 2.0 (ET2). Enzyme characterization was also performed to investigate the effect of ultrasound parameters on enzyme structure. The optimal ultrasound parameters, 40 % amplitude, and 5 % duty cycle effectively enhanced the reaction rate compared to the conventional stirring method while retaining 95 % of the enzyme activity. Analysis of circular dichroism (CD) spectra revealed the preservation of the secondary structure of ET2 under the optimal ultrasound intensities, while fluorescence spectra indicated a slight change in its tertiary structure. The implementation of a two-stage methanol dosing strategy in the ultrasound-assisted reaction effectively mitigated lipase inhibition, yielding a remarkable fatty acid methyl ester (FAME) content of 92.2 % achieved within a 12-h reaction time. Notable, this high FAME content was achieved with only a 4:1 methanol-to-oil molar ratio and a 0.5 wt% enzyme concentration. Under these optimized conditions, the ultrasound-assisted reaction also demonstrated a 15 % improvement in the final FAME content compared to the conventional stirring method. These promising results hold significant potential for advancing the field of biodiesel production via ultrasound technology, contributing substantively to sustainable energy sources.
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Affiliation(s)
- Min Ying Liow
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia
| | - Eng-Seng Chan
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia.
| | - Wei Zhe Ng
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia
| | - Cher Pin Song
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia.
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5
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Mateos PS, Casella ML, Briand LE, Matkovic SR. Transesterification of waste cooking oil with a commercial liquid biocatalyst: Key information revised and new insights. J AM OIL CHEM SOC 2023. [DOI: 10.1002/aocs.12683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- Paula S. Mateos
- Centro de Investigación y Desarrollo en Ciencias Aplicadas “Dr Jorge J. Ronco” CINDECA, CCT La Plata‐CONICET UNLP Buenos Aires Argentina
| | - Mónica L. Casella
- Centro de Investigación y Desarrollo en Ciencias Aplicadas “Dr Jorge J. Ronco” CINDECA, CCT La Plata‐CONICET UNLP Buenos Aires Argentina
| | - Laura E. Briand
- Centro de Investigación y Desarrollo en Ciencias Aplicadas “Dr Jorge J. Ronco” CINDECA, CCT La Plata‐CONICET UNLP Buenos Aires Argentina
| | - Silvana R. Matkovic
- Centro de Investigación y Desarrollo en Ciencias Aplicadas “Dr Jorge J. Ronco” CINDECA, CCT La Plata‐CONICET UNLP Buenos Aires Argentina
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6
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Zhang J, Wang Z, Zhuang W, Rabiee H, Zhu C, Deng J, Ge L, Ying H. Amphiphilic Nanointerface: Inducing the Interfacial Activation for Lipase. ACS APPLIED MATERIALS & INTERFACES 2022; 14:39622-39636. [PMID: 35980131 DOI: 10.1021/acsami.2c11500] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Graphene-based materials are widely used in the field of immobilized enzymes due to their easily tunable interfacial properties. We designed amphiphilic nanobiological interfaces between graphene oxide (GO) and lipase TL (Thermomyces lanuginosus) with tunable reduction degrees through molecular dynamics simulations and a facile chemical modulation, thus revealing the optimal interface for the interfacial activation of lipase TL and addressing the weakness of lipase TL, which exhibits weak catalytic activity due to an inconspicuous active site lid. It was demonstrated that the reduced graphene oxide (rGO) after 4 h of ascorbic acid reduction could boost the relative enzyme activity of lipase TL to reach 208%, which was 48% higher than the pristine GO and 120% higher than the rGO after 48 h of reduction. Moreover, TL-GO-4 h's tolerance against heat, organic solvent, and long-term storage environment was higher than that of free TL. The drawbacks of strong hydrophobic nanomaterials on lipase production were explored in depth with the help of molecular dynamics simulations, which explained the mechanism of enzyme activity enhancement. We demonstrated that nanomaterials with certain hydrophilicity could facilitate the lipase to undergo interfacial activation and improve its stability and protein loading rate, displaying the potential of the extensive application.
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Affiliation(s)
- Jihang Zhang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
| | - Zhaoxin Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Wei Zhuang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Hesamoddin Rabiee
- Centre for Future Materials, University of Southern Queensland, Springfield, QLD 4300, Australia
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Chenjie Zhu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
| | - Jiawei Deng
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Lei Ge
- Centre for Future Materials, University of Southern Queensland, Springfield, QLD 4300, Australia
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Hanjie Ying
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Technique Research Center for Biotechnology, Nanjing Tech University, No. 30, Puzhu South Road, Nanjing 211816, China
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
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7
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The changing face of SDS denaturation: Complexes of Thermomyces lanuginosus lipase with SDS at pH 4.0, 6.0 and 8.0. J Colloid Interface Sci 2022; 614:214-232. [DOI: 10.1016/j.jcis.2021.12.188] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/16/2021] [Accepted: 12/29/2021] [Indexed: 12/15/2022]
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8
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Ramakrishna TRB, Ashton TD, Marshall SN, Nalder TD, Yang W, Barrow CJ. Effect of Triton X-100 on the Activity and Selectivity of Lipase Immobilized on Chemically Reduced Graphene Oxides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9202-9214. [PMID: 34286574 DOI: 10.1021/acs.langmuir.1c01386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The effect of support hydrophobicity on lipase activity and substrate selectivity was investigated with and without Triton X-100 (TX-100). Lipases from Thermomyces lanuginosa (TL) and Alcaligenes sp. (QLM) were immobilized on graphene oxide (GO) and a range of chemically reduced graphene oxides (CRGOs) with different levels of surface hydrophobicity. Activity assays using 4-hydroxy-N-propyl-1,8-naphthalimide (NAP) esters of varying chain lengths (NAP-butyrate (NAP-B), NAP-octanoate (NAP-O), and NAP-palmitate (NAP-P)) showed that the activity of immobilized QLM and TL decreased by more than 60% on GO and 80% on CRGO (2 h), with activity decreasing further as surface hydrophobicity of the CRGOs increased. Across the hydrophobicity range of GO/CRGOs, the substrate selectivity of QLM shifted from more readily hydrolyzing NAP-P to NAP-B, while TL retained its substrate selectivity for NAP-O. Lipase TL was also shown to desorb from GO and 2 h CRGO when mixed with NAP-O and NAP-P, whereas QLM did not. Circular dichroism analyses of the lipase α-helix content correlate to the observed activity data, with decreases in the α-helical content (40% in TL and 20% in QLM relative to free lipase) consistent with decreases in activity after immobilization on GO. α-Helical content decreased even further as the surface hydrophobicity of CRGOs increased. Attenuated total reflectance-Fourier transform infrared spectroscopy also showed significant changes to the lipase secondary structure upon immobilization. The addition of TX-100 into the activity assay modified the substrate selectivity of immobilized QLM, improving the activity against NAP-O (90%) and NAP-P (67%) compared to the activity measured without TX-100. It was shown that TX-100 primarily affected the activity of QLM by interacting with the ester substrate and the lipase itself. This study provides an improved understanding of how support hydrophobicity and the presence of TX-100 can affect activity/selectivity of lipases immobilized on hydrophobic supports.
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Affiliation(s)
- Tejaswini R B Ramakrishna
- School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
- Seafood Unit, The New Zealand Institute for Plant & Food Research Limited, 293-297 Akersten Street, Nelson 7010, New Zealand
| | - Trent D Ashton
- School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
| | - Susan N Marshall
- Seafood Unit, The New Zealand Institute for Plant & Food Research Limited, 293-297 Akersten Street, Nelson 7010, New Zealand
| | - Tim D Nalder
- School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
- Seafood Unit, The New Zealand Institute for Plant & Food Research Limited, 293-297 Akersten Street, Nelson 7010, New Zealand
| | - Wenrong Yang
- School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
| | - Colin J Barrow
- School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
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Zhang J, Tian M, Lv P, Luo W, Wang Z, Xu J, Wang Z. High-efficiency expression of the thermophilic lipase from Geobacillus thermocatenulatus in Escherichia coli and its application in the enzymatic hydrolysis of rapeseed oil. 3 Biotech 2020; 10:523. [PMID: 33194527 DOI: 10.1007/s13205-020-02517-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 10/27/2020] [Indexed: 11/24/2022] Open
Abstract
Long-chain fatty acids are widely used in food and chemical industries, and the enzymatic preparation of fatty acids is considered an environmentally friendly process. In the present study, long-chain fatty acids were prepared by the enzymatic hydrolysis of rapeseed oil with a genetically engineered lipase. Because thermophilic lipase has strong stability at higher temperatures, it was more suitable for the industrial production of long-chain fatty acids. Therefore, the thermophilic lipase BTL2 from Geobacillus thermocatenulatus was efficiently expressed in E. coli BL21(DE3) cells with an enzyme activity of 39.50 U/mg followed by gene codon optimisation. Experimental results showed that the recombinant lipase BTL2 exhibited excellent resistance to certain organic solvents (n-hexane, benzene, ethanol, and butanol). The metal cation Ca2+ and the non-ionic surfactant Triton-100X enhanced enzyme activity by 7.36% and 56.21% respectively. Moreover, the acid value of the liberated long-chain fatty acids by hydrolysing rapeseed oil was approximately 161.64 mg KOH/g at 50 °C in 24 h, the hydrolytic conversion rate was 91.45%, and the productivity was approximately 6.735 mg KOH/g h. These results suggested that the recombinant lipase BTL2 has excellent hydrolytic performance for rapeseed oil and showed great potential for the enzymatic preparation of long-chain fatty acids.
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Affiliation(s)
- Jun Zhang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 China
- University of China Academy of Sciences, Beijing, 100049 China
| | - Miao Tian
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 China
- University of China Academy of Sciences, Beijing, 100049 China
| | - Pengmei Lv
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 China
| | - Wen Luo
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 China
| | - Zhiyuan Wang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 China
| | - Jingliang Xu
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 China
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001 China
| | - Zhongming Wang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640 China
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10
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Šibalić D, Šalić A, Tušek AJ, Sokač T, Brekalo K, Zelić B, Tran NN, Hessel V, Tišma M. Sustainable Production of Lipase from Thermomyces lanuginosus: Process Optimization and Enzyme Characterization. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04329] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Darijo Šibalić
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 18, Osijek HR-31000, Croatia
| | - Anita Šalić
- University of Zagreb, Faculty of Chemical Engineering and Technology, Marulićev trg 19, Zagreb HR-10000, Croatia
| | - Ana Jurinjak Tušek
- University of Zagreb, Faculty of Food Technology and Biotechnology, Pierottijeva 6, Zagreb HR-10000, Croatia
| | - Tea Sokač
- University of Zagreb, Faculty of Chemical Engineering and Technology, Marulićev trg 19, Zagreb HR-10000, Croatia
| | - Klara Brekalo
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 18, Osijek HR-31000, Croatia
| | - Bruno Zelić
- University of Zagreb, Faculty of Chemical Engineering and Technology, Marulićev trg 19, Zagreb HR-10000, Croatia
| | - Nghiep Nam Tran
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, North Terrace Campus, Adelaide 5005, Australia
- School of Chemical Engineering, Can Tho University, Campus 2, Can Tho 900000, Vietnam
| | - Volker Hessel
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, North Terrace Campus, Adelaide 5005, Australia
| | - Marina Tišma
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, Franje Kuhača 18, Osijek HR-31000, Croatia
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11
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Co-Expression of a Thermally Stable and Methanol-Resistant Lipase and Its Chaperone from Burkholderia cepacia G63 in Escherichia coli. Appl Biochem Biotechnol 2020; 193:717-729. [PMID: 33184764 DOI: 10.1007/s12010-020-03453-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/08/2020] [Indexed: 12/30/2022]
Abstract
Biodiesel biosynthesis with enzymatic transesterification is considered green, sustainable, and environmentally friendly method. Lipase from Burkholderia cepacia G63 has excellent catalytic properties in biodiesel production. Lipase chaperones promote secretion and folding of enzymes, thereby enhancing enzymatic activity. In the current study, heterologous co-expression of lipase (lipA) and chaperone (lipB) was achieved in Escherichia coli through codon optimization. The enzymatic activity of purified and renatured lipAB was 2080.23 ± 19.18 U/g at 50 °C and pH 8.0. Moreover, lipAB showed increased resistance to pH and temperature changes, and lipAB retained stable catalytic properties after treatment with metal ions, organic solvents, and surfactants, namely Mg2+, methanol, and Triton-100X. Besides, using recombinant lipase lipAB as catalysts, biodiesel was synthesized using rapeseed oil under 50 °C for 72 h with a yield of 90.23%. Thus, the current study confirmed that co-expression of lipase and its chaperone is an effective strategy to enhance enzyme activity and improve the biochemical profile, meanwhile, showing that lipAB is a promising biocatalyst for biodiesel production.
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12
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Noro J, Castro TG, Cavaco-Paulo A, Silva C. Substrate hydrophobicity and enzyme modifiers play a major role in the activity of lipase from Thermomyces lanuginosus. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00912a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Lipase fromThermomyces lanuginosusdisplays high affinity for long-chain substrates. The chemical modification of this lipase with isothiocyanates and aldehydes was explored to broadening its specificity to chain-length differentiated substrates.
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Affiliation(s)
- Jennifer Noro
- Center of Biological Engineering
- Campus de Gualtar
- University of Minho
- Braga
- Portugal
| | - Tarsila G. Castro
- Center of Biological Engineering
- Campus de Gualtar
- University of Minho
- Braga
- Portugal
| | - Artur Cavaco-Paulo
- Center of Biological Engineering
- Campus de Gualtar
- University of Minho
- Braga
- Portugal
| | - Carla Silva
- Center of Biological Engineering
- Campus de Gualtar
- University of Minho
- Braga
- Portugal
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13
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Effect of magnetic field on the Eversa® Transform 2.0 enzyme: Enzymatic activity and structural conformation. Int J Biol Macromol 2018; 122:653-658. [PMID: 30416097 DOI: 10.1016/j.ijbiomac.2018.10.171] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 10/23/2018] [Accepted: 10/23/2018] [Indexed: 11/22/2022]
Abstract
Alternatives to improve the stability and activity of enzymes have been rising in the last years due to the potential industrial application of these catalysts. However, the enzymes characteristics in terms of stability and catalytic efficiency can reduce, in some cases, due to the reaction conditions. Due to a lack in the literature concerning structural information related to the new commercial Eversa® Transform 2.0 enzyme (NS-40116) we investigated the conformational structure by spectroscopic and mass spectrometry techniques after exposure in permanent magnetic flux density (0.7 and 1.34 T) in recirculation mode (1, 2, and 4 h) at 0.06 L·min-1. The influence of pH on the enzymatic solution associated with the magnetic flux (pH 5, 7, and 9) was also evaluated. Under the best reaction condition (pH 7 after 4 h in a recirculation mode at 1.34 T), enzyme activity 77% higher than the control sample was obtained. Mass spectrometry techniques showed changes in the NS-40116 tertiary structure. Thus, the application of magnetic fields as an enzymatic pre-treatment showed to be a promising technique and a viable alternative to increase the enzymatic activity since it is a low cost, environmentally friendly, and ease operation process.
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14
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Álvarez-Cao ME, González R, Pernas MA, Rúa ML. Contribution of the Oligomeric State to the Thermostability of Isoenzyme 3 from Candida rugosa. Microorganisms 2018; 6:E108. [PMID: 30347699 PMCID: PMC6313406 DOI: 10.3390/microorganisms6040108] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 01/06/2023] Open
Abstract
Thermophilic proteins have evolved different strategies to maintain structure and function at high temperatures; they have large, hydrophobic cores, and feature increased electrostatic interactions, with disulfide bonds, salt-bridging, and surface charges. Oligomerization is also recognized as a mechanism for protein stabilization to confer a thermophilic adaptation. Mesophilic proteins are less thermostable than their thermophilic homologs, but oligomerization plays an important role in biological processes on a wide variety of mesophilic enzymes, including thermostabilization. The mesophilic yeast Candida rugosa contains a complex family of highly related lipase isoenzymes. Lip3 has been purified and characterized in two oligomeric states, monomer (mLip3) and dimer (dLip3), and crystallized in a dimeric conformation, providing a perfect model for studying the effects of homodimerization on mesophilic enzymes. We studied kinetics and stability at different pHs and temperatures, using the response surface methodology to compare both forms. At the kinetic level, homodimerization expanded Lip3 specificity (serving as a better catalyst on soluble substrates). Indeed, dimerization increased its thermostability by more than 15 °C (maximum temperature for dLip3 was out of the experimental range; >50 °C), and increased the pH stability by nearly one pH unit, demonstrating that oligomerization is a viable strategy for the stabilization of mesophilic enzymes.
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Affiliation(s)
- María-Efigenia Álvarez-Cao
- Department of Food and Analytical Chemistry, Sciences Faculty of Ourense, University of Vigo, As Lagoas s/n, 32004 Ourense, Spain.
| | - Roberto González
- Department of Food and Analytical Chemistry, Sciences Faculty of Ourense, University of Vigo, As Lagoas s/n, 32004 Ourense, Spain.
| | - María A Pernas
- Department of Food and Analytical Chemistry, Sciences Faculty of Ourense, University of Vigo, As Lagoas s/n, 32004 Ourense, Spain.
| | - María Luisa Rúa
- Department of Food and Analytical Chemistry, Sciences Faculty of Ourense, University of Vigo, As Lagoas s/n, 32004 Ourense, Spain.
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15
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Mesa M, Pereañez JA, Preciado LM, Bernal C. How the Triton X-100 modulates the activity/stability of the Thermomyces lanuginose lipase: Insights from experimental and molecular docking approaches. Int J Biol Macromol 2018; 120:2410-2417. [PMID: 30193918 DOI: 10.1016/j.ijbiomac.2018.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 08/06/2018] [Accepted: 09/03/2018] [Indexed: 12/28/2022]
Abstract
The lipase and Triton X-100 mixture is common for stabilization, immobilization and application processes of these kinds of enzymes. The objective of this article was to study the structural behavior and catalytic performance of Thermomyces lanuginose lipase in the presence of Triton X-100 at 25 °C and different pHs. The structural changes were followed by circular dichroism, correlating them with the catalytic performance, which is reported as the initial lipase activity in the hydrolysis of p‑nitro phenyl butyrate at zero time and residual activity after 48 h of incubation in the absence or presence of surfactant, at the selected pHs. Computational simulations allowed to explain the correlations between the physicochemical changes and the formation of surfactant protein complex, leading to the elucidation of the main interactions that drive activity and stability of this lipase in presence of the Triton X-100 surfactant. Main results showed the Triton X-100-enzyme complex modulates the site active geometry, favoring a better substrate-enzyme adjustment, which influences the activity and stability at evaluated pHs. This study contributes to understand the effect of some additives commonly used to improve the biocatalytic performance on several applications for different industrial fields.
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Affiliation(s)
- Monica Mesa
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia - UdeA, Calle 70 No. 52 - 21, Medellín, Colombia.
| | - Jaime Andres Pereañez
- Programa de Ofidismo/Escorpionismo, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Lina María Preciado
- Programa de Ofidismo/Escorpionismo, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Claudia Bernal
- Instituto de Investigación Multidisciplinario en Ciencia y Tecnología, Universidad de La Serena, Raul Bitran 1305, La Serena, Chile; Tecnología Enzimática para Bioprocesos, Departamento de Ingeniería de Alimentos, Universidad de La Serena, Raul Bitran 1305, La Serena, Chile
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16
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Kovaliov M, Cheng C, Cheng B, Averick S. Grafting-from lipase: utilization of a common amino acid residue as a new grafting site. Polym Chem 2018. [DOI: 10.1039/c8py01026a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A previously overlooked amino acid residue was utilized to grow polymers from proteins.
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Affiliation(s)
- Marina Kovaliov
- Neuroscience Disruptive Research Lab
- Allegheny Health Network Research Institute
- Allegheny General Hospital
- Pitts-burgh
- USA
| | - Cooper Cheng
- Neuroscience Disruptive Research Lab
- Allegheny Health Network Research Institute
- Allegheny General Hospital
- Pitts-burgh
- USA
| | - Boyle Cheng
- Neuroscience Institute
- Allegheny Health Network
- Allegheny General Hospital
- Pittsburgh
- USA
| | - Saadyah Averick
- Neuroscience Disruptive Research Lab
- Allegheny Health Network Research Institute
- Allegheny General Hospital
- Pitts-burgh
- USA
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17
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Madsen JK, Kaspersen JD, Andersen CB, Nedergaard Pedersen J, Andersen KK, Pedersen JS, Otzen DE. Glycolipid Biosurfactants Activate, Dimerize, and Stabilize Thermomyces lanuginosus Lipase in a pH-Dependent Fashion. Biochemistry 2017; 56:4256-4268. [DOI: 10.1021/acs.biochem.7b00420] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jens Kvist Madsen
- Interdisciplinary
Nanoscience Centre (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Jørn Døvling Kaspersen
- Interdisciplinary
Nanoscience Centre (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Camilla Bertel Andersen
- Interdisciplinary
Nanoscience Centre (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Jannik Nedergaard Pedersen
- Interdisciplinary
Nanoscience Centre (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Kell Kleiner Andersen
- Interdisciplinary
Nanoscience Centre (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
- Agro Business Park A/S, Niels
Pedersens Alle 2, DK-8660 Tjele, Denmark
| | - Jan Skov Pedersen
- Interdisciplinary
Nanoscience Centre (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
- Department
of Chemistry, Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
| | - Daniel E. Otzen
- Interdisciplinary
Nanoscience Centre (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark
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18
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Competition of Thermomyces lanuginosus lipase with its hydrolysis products at the oil–water interface. Colloids Surf B Biointerfaces 2017; 149:280-287. [DOI: 10.1016/j.colsurfb.2016.10.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 10/06/2016] [Accepted: 10/10/2016] [Indexed: 11/22/2022]
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19
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Gonçalves KM, Junior II, Papadimitriou V, Zoumpanioti M, Leal ICR, de Souza ROMA, Cordeiro Y, Xenakis A. Nanoencapsulated Lecitase Ultra and Thermomyces lanuginosus Lipase, a Comparative Structural Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:6746-6756. [PMID: 27291999 DOI: 10.1021/acs.langmuir.6b00826] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Two commercially available and widely used enzymes, the parent Thermomyces lanuginosus lipase (TLL) and the shuffled phospholipase A1 Lecitase (Lecitase Ultra), were encapsulated in AOT/isooctane reverse micelles and evaluated regarding their structure and activity. Preparations were also tested as effective biocatalysts. Small-angle X-ray scattering (SAXS), electronic paramagnetic resonance (EPR), and fluorescence spectroscopy were the techniques applied to assess the effects of enzyme incorporation to a reverse micellar nanostructure. SAXS analysis showed that the radius of gyration (Rg) changed from 16 to 38 Å, as the water content (w0) increased. Elongated shapes were more commonly observed than spherical shapes after enzyme encapsulation. EPR studies indicated that enzymes do not participate in the interface, being located in the aqueous center. Fluorescence energy transfer showed that TLL is located in the water core, whereas Lecitase Ultra is closer to the interface. Enzymatic activity toward a standard esterification reaction endured after the enzyme was incorporated into the micelles. The activity of TLL for systems with w0 15 showed the highest conversion yield, 38% in 2 h, while the system with w0 10 showed the highest initial velocity, 0.43 μM/min. This last system had a Rg of 19.3 Å, similar to that of the TLL monomer. Lecitase Ultra showed the highest conversion yields in systems with w0 10, 55% in 2 h. However, the initial rate was much lower than that of TLL, suggesting less affinity for the substrates, which is expected since Lecitase Ultra is a phospholipase. In summary, we here used several spectroscopic and scattering techniques to reveal the shape and stability of TTL and Lecitase Ultra encapsulated systems, which allowed the selection of w0 values to provide optimized enzymatic activity.
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Affiliation(s)
- Karen M Gonçalves
- Faculty of Pharmacy, Federal University of Rio de Janeiro , Rio de Janeiro 21941-902, Brazil
| | - Ivaldo I Junior
- Biocatalysis and Organic Synthesis Group, Chemistry Institute, Federal University of Rio de Janeiro , Rio de Janeiro 21941-909, Brazil
- Department of Biochemical Engineering, School of Chemistry, Federal University of Rio de Janeiro , Rio de Janeiro 21941-909, Brazil
| | - Vassiliki Papadimitriou
- Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens 116 35, Greece
| | - Maria Zoumpanioti
- Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens 116 35, Greece
| | - Ivana C R Leal
- Faculty of Pharmacy, Federal University of Rio de Janeiro , Rio de Janeiro 21941-902, Brazil
| | - Rodrigo O M A de Souza
- Biocatalysis and Organic Synthesis Group, Chemistry Institute, Federal University of Rio de Janeiro , Rio de Janeiro 21941-909, Brazil
| | - Yraima Cordeiro
- Faculty of Pharmacy, Federal University of Rio de Janeiro , Rio de Janeiro 21941-902, Brazil
| | - Aristotelis Xenakis
- Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation , Athens 116 35, Greece
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20
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Magalhães SS, Alves L, Sebastião M, Medronho B, Almeida ZL, Faria TQ, Brito RMM, Moreno MJ, Antunes FE. Effect of ethyleneoxide groups of anionic surfactants on lipase activity. Biotechnol Prog 2016; 32:1276-1282. [PMID: 27253632 DOI: 10.1002/btpr.2310] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 04/22/2016] [Indexed: 11/08/2022]
Abstract
The use of enzymes in laundry and dish detergent products is growing. Such tendency implies dedicated studies to understand surfactant-enzyme interactions. The interactions between surfactants and enzymes and their impact on the catalytic efficiency represent a central problem and were here evaluated using circular dichroism, dynamic light scattering, and enzyme activity determinations. This work focuses on this key issue by evaluating the role of the ethyleneoxide (EO) groups of anionic surfactants on the structure and activity of a commercial lipase, and by focusing on the protein/surfactant interactions at a molecular level. The conformational changes and enzymatic activity of the protein were evaluated in the presence of sodium dodecyl sulfate (SDS also denoted as SLE0 S) and of sodium lauryl ether sulfate with two EO units (SLE2 S). The results strongly suggest that the presence of EO units in the surfactant polar headgroup determines the stability and the activity of the enzyme. While SDS promotes enzyme denaturation and consequent loss of activity, SLE2 S preserves the enzyme structure and activity. The data further highlights that the electrostatic interactions among the protein groups are changed by the presence of the adsorbed anionic surfactants being such absorption mainly driven by hydrophobic interactions. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:1276-1282, 2016.
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Affiliation(s)
- Solange S Magalhães
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal.,Mistolin Portugal, Zona Industrial De Vagos, Lote 58, Vagos, 3844-909, Portugal
| | - Luís Alves
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal.
| | - Marco Sebastião
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal.,Mistolin Portugal, Zona Industrial De Vagos, Lote 58, Vagos, 3844-909, Portugal
| | - Bruno Medronho
- Faculty of Sciences and Technology (MEDITBIO), University of Algarve, Campus De Gambelas, Ed. 8, Faro, 8005-139, Portugal
| | - Zaida L Almeida
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal
| | - Tiago Q Faria
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal
| | - Rui M M Brito
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal
| | - Maria J Moreno
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal
| | - Filipe E Antunes
- Coimbra Chemistry Centre, Dept. of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal.
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21
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Zhang X, Li X, Xia L. Expression of a thermo-alkaline lipase gene from Talaromyces thermophilus in recombinant Pichia pastoris. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2015.08.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Stability and Activity of Porcine Lipase Against Temperature and Chemical Denaturants. Appl Biochem Biotechnol 2014; 174:2711-24. [DOI: 10.1007/s12010-014-1220-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 09/02/2014] [Indexed: 10/24/2022]
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