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Bian L, Zhang S, Chang T, Zhang J, Zhu X, Zhang C. Enhanced catalytic performance and pH stability of Streptomyces Laccase Y230R and its degradation of malachite green. Int J Biol Macromol 2024; 277:134108. [PMID: 39048010 DOI: 10.1016/j.ijbiomac.2024.134108] [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: 03/18/2024] [Revised: 07/11/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
The escalating threat of malachite green (MG) pollution poses significant risks to ecosystems. Saturation mutation targeting Tyr230 of small laccase (SLAC) from Streptomyces coelicolor yielded Y230R, exhibiting a remarkable 104 % increase in specific activity. Notably, this mutation achieved dual enhancements in both activity and pH stability. Molecular dynamics simulation revealed higher structural stability of Y230R compared to wild-type (WT) across varying pH levels. The increased count of hydrogen bonds in Y230R compared to WT may be contribute to its stability. Y230R demonstrated superior catalytic efficiency (67.0 %) in MG decolorization, maintaining over 90 % activity after 30 min incubation in MG solution (500 mg/L), highlighting enhanced tolerance compared to WT. Molecular docking analysis attributed the differential catalytic effects on MG and ABTS to structural disparities and hydrogen bonding. Y230R stands as a promising composite mutant for future laccase engineering and industrial applications.
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Affiliation(s)
- Luyao Bian
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Silu Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Tingting Chang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jiacheng Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xiaoyu Zhu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Chong Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China.
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Bian L, Zhang S, Chang T, Zhang J, Zhang C. Engineering Site 228 of Streptomyces coelicolor Laccase for Optimizing Catalytic Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6019-6027. [PMID: 38447069 DOI: 10.1021/acs.jafc.4c00189] [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: 03/08/2024]
Abstract
Malachite green (MG) poses a formidable threat to ecosystems and human health. Laccase emerges as a promising candidate for MG degradation, prompting an investigation into the catalytic activity modulation of a small laccase (SLAC) from Streptomyces coelicolor, with a focus on amino acid position 228. Through saturation mutagenesis, five mutants with a 50% increase in the specific activity were generated. Characterization revealed notable properties, Km of E228F was 8.8% of the wild type (WT), and E288T exhibited a 133% kcat compared to WT. Structural analyses indicated improved hydrophobicity and electrostatic potential on the mutants' surfaces, with the stable E228F-ABTS complex exhibiting reduced flexibility, possibly contributing to the observed decrease in turnover rate. Mutants demonstrated enhanced MG decolorization, particularly E228G. Site 228 acts as a crucial functional control switch, suggesting its potential role in SLAC engineering. This study provides insights into laccase modulation and offers promising avenues for enzymatic bioremediation applications.
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Affiliation(s)
- Luyao Bian
- Laboratory of Food Industrial Enzyme Technology, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Silu Zhang
- Laboratory of Food Industrial Enzyme Technology, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Tingting Chang
- Laboratory of Food Industrial Enzyme Technology, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Jiacheng Zhang
- Laboratory of Food Industrial Enzyme Technology, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Chong Zhang
- Laboratory of Food Industrial Enzyme Technology, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China
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Zhang W, Hedayati S, Tarahi M, Can Karaca A, Hadidi M, Assadpour E, Jafari SM. Advances in transglutaminase cross-linked protein-based food packaging films; a review. Int J Biol Macromol 2023; 253:127399. [PMID: 37827415 DOI: 10.1016/j.ijbiomac.2023.127399] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/20/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
Pushed by the environmental pollution and health hazards of plastic packaging, the development of biodegradable food packaging films (FPFs) is a necessary and sustainable trend for social development. Most protein molecules have excellent film-forming properties as natural polymer matrices, and the assembled films have excellent barrier properties, but show defects such as low water resistance and poor mechanical properties. In order to improve the performance of protein-based films, transglutaminase (TG) is used as a safe and green cross-linking (CL) agent. This work covers recent developments on TG cross-linked protein-based FPFs, mainly comprising proteins of animal and plant origin, including gelatin, whey protein, zein, soy proteins, bitter vetch protein, etc. The chemical properties and reaction mechanism of TG are briefly introduced, focusing on the effects of TG CL on the physicochemical properties of different protein-based FPFs, including barrier properties, water resistance, mechanical properties and thermal stability. It is concluded that the addition of TG can significantly improve the physical and mechanical properties of protein-based films, mainly improving their water resistance, barrier, mechanical and thermal properties. It is worth noting that the effect of TG on the properties of protein-based films is not only related to the concentration of TG added, but also related to CL temperature and other factors. Moreover, TG can also be used in combination with other strategies to improve the properties of protein-based films.
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Affiliation(s)
- Wanli Zhang
- School of Food Science and Engineering, Hainan University, Haikou 570228, PR China
| | - Sara Hedayati
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Tarahi
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Asli Can Karaca
- Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, 34469 Istanbul, Turkey
| | - Milad Hadidi
- Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Elham Assadpour
- Food Industry Research Co., Gorgan, Iran; Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran; Halal Research Center of IRI, Iran Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran.
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Enhancement of Antioxidant Property of N-Carboxymethyl Chitosan and Its Application in Strawberry Preservation. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238496. [PMID: 36500590 PMCID: PMC9735828 DOI: 10.3390/molecules27238496] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/25/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Bio-enzymatic grafting phenolic acid to chitosan derivative is an efficient and environmentally friendly molecular synthesis technology. In the present study, N-carboxymethyl chitosan (CMCS) was grafted with gallic acid (GA) using recombinant bacterial laccase from Streptomyces coelicolor as a catalyst. GA and CMCS were successfully grafted as determined by measuring amino acid content, Fourier transform infrared (FTIR) spectroscopy and ultraviolet-visible (UV-Vis) spectroscopy. Then, the effect of GA-g-CMCS coating on the freshness of strawberries at 20 ± 2 °C was explored. The physiological and biochemical quality indicators of strawberries during storage were monitored. The 1.5% GA-g-CMCS coating helped to protect the antioxidant properties and nutrients of strawberries and extend the shelf life. Specifically, it reduced the weight loss of strawberries during preservation (originally 12.7%) to 8.4%, maintained titratable acidity content (TA) residuals above 60% and reduced decay rate from 36.7% to 8.9%. As a bioactive compound, GA-g-CMCS has the potential to become an emerging food packing method. These results provide a theoretical basis and reference method for the subsequent synthesis and application of CMCS derivatives.
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Garavand F, Jafarzadeh S, Cacciotti I, Vahedikia N, Sarlak Z, Tarhan Ö, Yousefi S, Rouhi M, Castro-Muñoz R, Jafari SM. Different strategies to reinforce the milk protein-based packaging composites. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.03.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Development and characterization of whey protein isolate and xylan composite films with and without enzymatic crosslinking. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106847] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Delgado JF, Salvay AG, de la Osa O, Wagner JR, Peltzer MA. Impact of the film-forming dispersion pH on the properties of yeast biomass films. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:5636-5644. [PMID: 33709441 DOI: 10.1002/jsfa.11216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 03/03/2021] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Yeast biomass, mainly composed of proteins and polysaccharides (mannans and β-glucans), has been proposed to develop films. pH can affect the solubility of polysaccharides, the structure of the cell wall, and the interactions between proteins. Considering the potential impact of these effects, the pH of yeast film-forming dispersions was studied from 4 to 11. RESULTS In tensile tests, samples increased their elongation by increasing pH, from 7 ± 2% (pH 4) to 29 ± 5% (pH 11), but Young's modulus was not significantly modified. Regarding thermal degradation, the maximum degradation rate temperature was shifted 46 °C from pH 4 to 11. Differences in water vapour permeability, colour, opacity, and roughness of films were also found. According to the results of differential protein solubility assay, hydrophobic interactions and hydrogen bonding were promoted at pH 4, but disulfide bonds were benefited at pH 11, in addition to partial β-glucan dissolution and break-up of the alkali-sensitive linkage in molecules from the cell wall. CONCLUSION The results lead to the conclusion that film-functional characteristics were greatly benefited at pH 11 in comparison with the regular pH of dispersion (pH 6). These results could help in understanding and selecting the pH conditions to enhance the desired properties of yeast biomass films. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Juan F Delgado
- Laboratorio de Obtención, Modificación, Caracterización y Evaluación de Materiales (LOMCEM), Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, Provincia de Buenos Aires, 1876, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, 1425, Argentina
- Grupo de Biotecnología y Materiales Biobasados, Instituto de Tecnología en Polímeros y Nanotecnología (ITPN-UBA-CONICET), Universidad de Buenos Aires, Avenida Las Heras 2214, Ciudad Autónoma de Buenos Aires, 1127, Argentina
| | - Andrés G Salvay
- Laboratorio de Obtención, Modificación, Caracterización y Evaluación de Materiales (LOMCEM), Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, Provincia de Buenos Aires, 1876, Argentina
| | - Orlando de la Osa
- Laboratorio de Obtención, Modificación, Caracterización y Evaluación de Materiales (LOMCEM), Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, Provincia de Buenos Aires, 1876, Argentina
| | - Jorge R Wagner
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, 1425, Argentina
- Laboratorio de Investigación en Funcionalidad y Tecnología de Alimentos (LIFTA), Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, Provincia de Buenos Aires, 1876, Argentina
| | - Mercedes A Peltzer
- Laboratorio de Obtención, Modificación, Caracterización y Evaluación de Materiales (LOMCEM), Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal, Provincia de Buenos Aires, 1876, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, 1425, Argentina
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Wu G, Hui X, Gong X, Tran KN, Stipkovits L, Mohan MS, Brennan MA, Brennan CS. Functionalization of bovine whey proteins by dietary phenolics from molecular-level fabrications and mixture-level combinations. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.072] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Liu Q, Cui H, Muhoza B, Duhoranimana E, Hayat K, Zhang X, Ho CT. Mild Enzyme-Induced Gelation Method for Nanoparticle Stabilization: Effect of Transglutaminase and Laccase Cross-Linking. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1348-1358. [PMID: 33492149 DOI: 10.1021/acs.jafc.0c05444] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Low-environment-sensitive nanoparticles were prepared by enzymatic cross-linking of electrostatic complexes of dextran-grafted whey protein isolate (WPI-Dextran) and chondroitin sulfate (ChS). The effect of transglutaminase (TG) and laccase cross-linking on nanoparticle stability was investigated. Covalent TG cross-linking and grafted dextran cooperatively contributed to the stability of nanoparticles against dissociation and aggregation under various harsh environmental conditions (sharply varying pH, high ionic strength, high temperature, and their combined effects). However, fragmentation induced by laccase treatment did not promote nanoparticle stability. Structural characterization showed that the compact structure promoted by TG-induced covalent isopeptide bonds repressed dissociation against varying environmental conditions and thermal-induced aggregation. Furthermore, the increasing α-helix and decreasing random coil contents benefited the formation of disulfide bonds, further contributing to the enhanced stability of nanoparticles cross-linked by TG, whereas weak hydrophobic interactions and hydrogen bonding as evidenced by the increase in β-sheet and microenvironmental changes were not able to maintain the stability of nanoparticles treated with laccase. Encapsulated cinnamaldehyde presented sustained release from TG-cross-linked nanoparticles, and the bioaccessibility was considerably enhanced to 50.7%. This research developed a novel mild strategy to enhance nanoparticle stability in harsh environments and digestive conditions, which could be an effective delivery vehicle for hydrophobic nutrients and drug applications in food and pharmaceutical industries.
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Affiliation(s)
- Qian Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, China
| | - Heping Cui
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, China
| | - Bertrand Muhoza
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, China
| | - Emmanuel Duhoranimana
- Department of Biotechnologies, Faculty of Applied Fundamental Sciences, Institutes of Applied Sciences, Ruhengeri Institute of Higher Education (INES-Ruhengeri), Musanze NM155, Ruhengeri 155, Republic of Rwanda
| | - Khizar Hayat
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
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Ma L, Li A, Li T, Li M, Wang X, Hussain MA, Qayum A, Jiang Z, Hou J. Structure and characterization of laccase-crosslinked α-lactalbumin: Impacts of high pressure homogenization pretreatment. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108843] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Xu L, Cao W, Li R, Zhang H, Xia N, Li T, Liu X, Zhao X. Properties of soy protein isolate/nano‐silica films and their applications in the preservation of
Flammulina velutipes. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.14177] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Lina Xu
- College of Food Science Northeast Agricultural University Harbin People's Republic of China
| | - Wenhui Cao
- College of Food Science Northeast Agricultural University Harbin People's Republic of China
| | - Rui Li
- College of Food Science Northeast Agricultural University Harbin People's Republic of China
| | - Huajiang Zhang
- College of Food Science Northeast Agricultural University Harbin People's Republic of China
| | - Ning Xia
- College of Food Science Northeast Agricultural University Harbin People's Republic of China
| | - Tong Li
- College of Food Science Northeast Agricultural University Harbin People's Republic of China
| | - Xixin Liu
- College of Food Science Northeast Agricultural University Harbin People's Republic of China
| | - Xiaotong Zhao
- College of Food Science Northeast Agricultural University Harbin People's Republic of China
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Quan W, Zhang C, Zheng M, Lu Z, Zhao H, Lu F. Effects of small laccase from Streptomyces coelicolor on the solution and gel properties of whey protein isolate. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.11.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Xu L, Liu Y, Yang M, Cao W, Zhang H, Xia N, Li T, Zhao X. Properties of soy protein isolate/nano‐silica bilayer films during storage. J FOOD PROCESS ENG 2018. [DOI: 10.1111/jfpe.12984] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Lina Xu
- College of Food ScienceNortheast Agricultural University Harbin 150030, People's Republic of China
| | - Yuanyuan Liu
- College of Food ScienceChina Agricultural University Beijing 100083, People's Republic of China
| | - Mingming Yang
- College of Food ScienceNortheast Agricultural University Harbin 150030, People's Republic of China
| | - Wenhui Cao
- College of Food ScienceNortheast Agricultural University Harbin 150030, People's Republic of China
| | - Huajiang Zhang
- College of Food ScienceNortheast Agricultural University Harbin 150030, People's Republic of China
| | - Ning Xia
- College of Food ScienceNortheast Agricultural University Harbin 150030, People's Republic of China
| | - Tong Li
- College of Food ScienceNortheast Agricultural University Harbin 150030, People's Republic of China
| | - Xiaotong Zhao
- College of Food ScienceNortheast Agricultural University Harbin 150030, People's Republic of China
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