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Fernández-Núñez A, EL Haskouri J, Amorós P, Ros-Lis JV. Graphene oxide as inhibitor on the hydrolysis of fats under simulated in vitro duodenal conditions. Heliyon 2024; 10:e28624. [PMID: 38560126 PMCID: PMC10979235 DOI: 10.1016/j.heliyon.2024.e28624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 03/21/2024] [Accepted: 03/21/2024] [Indexed: 04/04/2024] Open
Abstract
Obesity is a global pandemic, thus novel developments that reduce the absorption of fats is of interest. We have evaluated the effect of graphene oxide (GO) on the lipase catalyzed hydrolysis of fats (tributyrin, sunflower and olive oil) under simulated duodenal conditions. Results indicate that the presence of GO in the digestion mixture can inhibit lipase activity up to a 90% of the initial reaction rate, and this inhibition lasts even during 2 h of digestion. The inhibition mechanism seems non competitive and could be opposite to the effect of bile salts, although the direct interaction between GO and the enzyme cannot be discarded. The inhibition is found also in alimentary fats suggesting that GO could be a strong inhibitor for fat hydrolysis.
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Affiliation(s)
- Alberto Fernández-Núñez
- Institut de Ciència dels Materials (ICMUV), Universitat de València, c/ Catedrático José Beltrán 2, Paterna, 46980, Valencia, Spain
| | - Jamal EL Haskouri
- Institut de Ciència dels Materials (ICMUV), Universitat de València, c/ Catedrático José Beltrán 2, Paterna, 46980, Valencia, Spain
| | - Pedro Amorós
- Institut de Ciència dels Materials (ICMUV), Universitat de València, c/ Catedrático José Beltrán 2, Paterna, 46980, Valencia, Spain
| | - Jose V. Ros-Lis
- REDOLí Research Group, Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València. Doctor Moliner 50, Burjassot, Valencia, 46100, Spain
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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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Shi X, Qin X, Dai Y, Liu X, Wang W, Zhong J. Improved catalytic properties of Candida antarctica lipase B immobilized on cetyl chloroformate-modified cellulose nanocrystals. Int J Biol Macromol 2022; 220:1231-1240. [PMID: 36049567 DOI: 10.1016/j.ijbiomac.2022.08.170] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 08/19/2022] [Accepted: 08/24/2022] [Indexed: 11/05/2022]
Abstract
The catalytic activity of Candida antarctica lipase B (CALB) immobilized on modified cellulose nanocrystals (CNC) with different hydrophobicity was investigated using experimental and theoretical approaches. Firstly, the modified CNC were characterized by multi-spectroscopic methods, water contact angle, scanning electron microscopy and thermogravimetric analysis. Moderately hydrophobic CNC were found to be an optimal support for CALB immobilization. Secondly, model systems contained a CALB molecule and different numbers of modified CNC molecules (CALB@3CNC-C16, CALB@10CNC-C16 and CALB@15CNC-C16) were prepared for molecular dynamics (MD) simulation. Root-mean-square fluctuation values (0.61-2.61 Å) of lid region were relatively high in CALB@10CNC-C16, indicating that modified CNC with moderate hydrophobicity favored forming a lid-open conformation of CALB. Finally, the esterification of oleic acid catalyzed by the immobilized CALB showed higher conversion (54.68 %) than free CALB (12.98 %). Insights into modified CNC with tunable properties provided by this study may be a potential support for improving the catalytic performance of lipases.
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Affiliation(s)
- Xue Shi
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Xiaoli Qin
- College of Food Science, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
| | - Yunxiang Dai
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Xiong Liu
- College of Food Science, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
| | - Weifei Wang
- Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, China.
| | - Jinfeng Zhong
- College of Food Science, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China.
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Wang B, Fang H, Zhu W, Xu Y, Yang Y, Qian X. Dynamic Compartmentalization of Peptide-Oligonucleotide Conjugates with Reversible Nanovesicle-Microdroplet Phase Transition Behaviors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:36998-37008. [PMID: 35925804 DOI: 10.1021/acsami.2c05268] [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
Developing artificial microsystems based on liquid-liquid phase separation (LLPS) to mimic cellular dynamic compartmentalization has gained increasing attention. However, limitations including complicated components and laborious fabrication techniques have hindered their development. Herein, we describe a new single-component dynamic compartmentalization system using peptide-oligonucleotide conjugates (POCs) produced from short elastin-like polypeptides (sELPs) and oligonucleotides (ONs), which can perform thermoreversible phase transition between a nanovesicle and a microdroplet. The phase transition of sELP-ONs is thoroughly investigated, of which the transition temperature can be controlled by concentration, length of sELPs and ONs, base sequences, and salt. Moreover, the sELP-ON microcompartment can enrich a variety of functional molecules including small molecules, polysaccharides, proteins, and nucleic acids. Two sELP-ON compartments are used as nano- and microreactors for enzymatic reactions, separately, in which chemical activities are successfully regulated under different-scaled confinement effects, demonstrating their broad potential application in matter exchange and artificial cells.
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Affiliation(s)
- Bin Wang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Honglong Fang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Weiping Zhu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Yufang Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Yangyang Yang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Xuhong Qian
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
- State Key Laboratory of Bioreactor, East China University of Science and Technology, Shanghai 200237, China
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Immobilization of Lipases on Modified Silica Clay for Bio-Diesel Production: The Effect of Surface Hydrophobicity on Performance. Catalysts 2022. [DOI: 10.3390/catal12020242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The hydrophobicity of a support plays a critical role in the catalytic efficiency of immobilized lipases. 3-aminopropyltriethoxysilane (APTES)-modified silica clay (A-SC) was coupled with silane coupling agents of different alkyl chains (methyl triethoxysilane, vinyl triethoxysilane, octyl triethoxysilane, and dodecyl triethoxysilane) to prepare a series of hydrophobic support for lipase immobilization. The lipases were immobilized onto the support by conducting glutaraldehyde cross-linking processes. The results showed that the activity of the immobilized biocatalyst increased with hydrophobicity. The hydrolytic activity of Lip-Glu-C12-SC (contact angle 119.8°) can reach 5900 U/g, which was about three times that of Lip-Glu-A-SC (contact angle 46.5°). The immobilized lipase was applied as a biocatalyst for biodiesel production. The results showed that the catalytic yield of biodiesel with highly hydrophobic Lip-Glu-C12-SC could be as high as 96%, which is about 30% higher than that of Lip-Glu-A-SC. After being recycled five times, the immobilized lipase still maintained good catalytic activity and stability. This study provides a good strategy to improve the efficiency of immobilized lipases, showing great potential for future industrial application on biodiesel production.
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