1
|
Ahmad MS, Shah N, Akbar Z, Khan T, Ali A. Simple two-step purification and characterisation of peroxidase from Citrullus colocynthis. Nat Prod Res 2024; 38:3374-3383. [PMID: 37621192 DOI: 10.1080/14786419.2023.2248644] [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: 05/10/2023] [Revised: 07/20/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
Peroxidase is a biotechnologically important enzyme. The purification of peroxidase from the root of Citrullus colocynthis was carried out in a simple two-step process with maximum purity level. The sample was extracted in a high salt buffer, and the enzyme was partially purified with a Q-Sepharose anion exchange column. Final purification was carried out with HighLoad 16/600 Superdex G-75 column. The purified protein was analysed with SDS gel electrophoresis, which suggested a single band of approximately 35 kDa. Further, the enzyme was identified with the help of Mass spectrometric analysis using an ESI-QTOF Mass spectrometer. The study will be helpful for the isolation and its commercial uses in biotechnology.
Collapse
Affiliation(s)
- Malik Shoaib Ahmad
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Nayab Shah
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Zeeshan Akbar
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Tajwali Khan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Arslan Ali
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| |
Collapse
|
2
|
Jiang F, Wang Z, Cong Z. Tuning the peroxidase activity of artificial P450 peroxygenase by engineering redox-sensitive residues. Faraday Discuss 2024; 252:52-68. [PMID: 38836616 DOI: 10.1039/d4fd00008k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Cytochrome P450 monooxygenases (P450s) are well recognized as versatile bio-oxidation catalysts. However, the catalytic functions of P450s are highly dependent on NAD(P)H and redox partner proteins. Our group has recently reported the use of a dual-functional small molecule (DFSM) for generating peroxygenase activity of P450BM3, a long-chain fatty acid hydroxylase from Bacillus megaterium. The DFSM-facilitated P450BM3 peroxygenase system exhibited excellent peroxygenation activity and regio-/enantioselectivity for various organic substrates, such as styrenes, thioanisole, small alkanes, and alkylbenzenes. Very recently, we demonstrated that the DFSM-facilitated P450BM3 peroxygenase could be switched to a peroxidase by engineering the redox-sensitive tyrosine residues in P450BM3. Given the great potential of P450 peroxidase for C-H oxyfunctionalization, we herein report scrutiny of the effect of mutating redox-sensitive residues on peroxidase activity by deeply screening all redox-sensitive residues of P450BM3, namely methionines, tryptophans, cysteines, and phenylalanines. As a result, six beneficial mutations at positions M212, F81, M112, F173, M177, and F77 were screened out from 78 constructed mutants, and significantly enhanced the peroxidase activity of P450BM3 in the presence of Im-C6-Phe, a typical DFSM molecule. Further combination of the beneficial mutations resulted in a more than 100-fold improvement in peroxidase activity compared with that of the combined parent enzyme and DFSM, comparable to or better than most natural peroxidases. In addition, mutations of redox-sensitive residues even dramatically increased, by more than 300-fold, the peroxidase activity of the starting F87A enzyme in the absence of the DFSM, despite the far lower apparent catalytic turnover number compared with the DFSM-P450 system. This study provides new insights and a potential strategy for regulating the catalytic promiscuity of P450 enzymes for multiple functional oxidations.
Collapse
Affiliation(s)
- Fengjie Jiang
- CAS Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zihan Wang
- CAS Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiqi Cong
- CAS Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
- Shandong Energy Institute, Qingdao 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao 266101, China
| |
Collapse
|
3
|
Ngo ACR, Celebi B, Hermann Hadewig SN, Mügge C, Tischler D. Selective pressure leads to an improved synthetic consortium fit for dye degradation. CHEMOSPHERE 2024; 361:142489. [PMID: 38825247 DOI: 10.1016/j.chemosphere.2024.142489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/17/2024] [Accepted: 05/29/2024] [Indexed: 06/04/2024]
Abstract
Microorganisms have great potential for bioremediation as they have powerful enzymes and machineries that can transform xenobiotics. The use of a microbial consortium provides more advantages in application point of view than pure cultures due to cross-feeding, adaptations, functional redundancies, and positive interactions among the organisms. In this study, we screened about 107 isolates for their ability to degrade dyes in aerobic conditions and without additional carbon source. From our screening results, we finally limited our synthetic consortium to Gordonia and Rhodococcus isolates. The synthetic consortium was trained and optimized for azo dye degradation using sequential treatment of small aromatic compounds such as phenols that act as selective pressure agents. After four rounds of optimization with different aims for each round, the consortium was able to decolorize and degrade various dyes after 48 h (80%-100% for brilliant black bn, methyl orange, and chromotrop 2b; 50-70% for orange II and reactive orange 16; 15-30% for chlorazol black e, reactive red 120, and allura red ac). Through rational approaches, we can show that treatment with phenolic compounds at micromolar dosages can significantly improve the degradation of bulky dyes and increase its substrate scope. Moreover, our selective pressure approach led to the production of various dye-degrading enzymes as azoreductase, laccase-like, and peroxidase-like activities were detected from the phenol-treated consortium. Evidence of degradation was also shown as metabolites arising from the degradation of methyl red and brilliant black bn were detected using HPLC and LC-MS analysis. Therefore, this study establishes the importance of rational and systematic screening and optimization of a consortium. Not only can this approach be applied to dye degradation, but this study also offers insights into how we can fully maximize microbial consortium activity for other applications, especially in biodegradation and biotransformation.
Collapse
Affiliation(s)
| | - Beyzanur Celebi
- Microbial Biotechnology, Ruhr Universität Bochum, Bochum, Germany
| | | | - Carolin Mügge
- Microbial Biotechnology, Ruhr Universität Bochum, Bochum, Germany
| | - Dirk Tischler
- Microbial Biotechnology, Ruhr Universität Bochum, Bochum, Germany
| |
Collapse
|
4
|
Perez AV, Gaitan-Oyola JA, Vargas-Delgadillo DP, Castillo JJ, Barbosa O, Fernandez-Lafuente R. Synthesis and Characterization of Cross-Linked Aggregates of Peroxidase from Megathyrsus maximus (Guinea Grass) and Their Application for Indigo Carmine Decolorization. Molecules 2024; 29:2696. [PMID: 38893568 PMCID: PMC11173754 DOI: 10.3390/molecules29112696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/16/2024] [Accepted: 05/31/2024] [Indexed: 06/21/2024] Open
Abstract
We present the synthesis of a cross-linking enzyme aggregate (CLEAS) of a peroxidase from Megathyrsus maximus (Guinea Grass) (GGP). The biocatalyst was produced using 50%v/v ethanol and 0.88%w/v glutaraldehyde for 1 h under stirring. The immobilization yield was 93.74% and the specific activity was 36.75 U mg-1. The biocatalyst surpassed by 61% the free enzyme activity at the optimal pH value (pH 6 for both preparations), becoming this increase in activity almost 10-fold at pH 9. GGP-CLEAS exhibited a higher thermal stability (2-4 folds) and was more stable towards hydrogen peroxide than the free enzyme (2-3 folds). GGP-CLEAS removes over 80% of 0.05 mM indigo carmine at pH 5, in the presence of 0.55 mM H2O2 after 60 min of reaction, a much higher value than when using the free enzyme. The operational stability showed a decrease of enzyme activity (over 60% in 4 cycles), very likely related to suicide inhibition.
Collapse
Affiliation(s)
- Angie V. Perez
- Grupo de Investigación en Materiales Porosos con Aplicaciones Ambientales y Tecnológicas, Departamento de Química, Universidad del Tolima, Ibagué 730006299, Colombia; (A.V.P.); (J.A.G.-O.); (D.P.V.-D.)
| | - Jorge A. Gaitan-Oyola
- Grupo de Investigación en Materiales Porosos con Aplicaciones Ambientales y Tecnológicas, Departamento de Química, Universidad del Tolima, Ibagué 730006299, Colombia; (A.V.P.); (J.A.G.-O.); (D.P.V.-D.)
| | - Diana P. Vargas-Delgadillo
- Grupo de Investigación en Materiales Porosos con Aplicaciones Ambientales y Tecnológicas, Departamento de Química, Universidad del Tolima, Ibagué 730006299, Colombia; (A.V.P.); (J.A.G.-O.); (D.P.V.-D.)
| | - John J. Castillo
- Grupo de Investigación en Bioquímica y Microbiología, Escuela de Química, Universidad Industrial de Santander, Bucaramanga 680002, Colombia;
| | - Oveimar Barbosa
- Grupo de Investigación en Materiales Porosos con Aplicaciones Ambientales y Tecnológicas, Departamento de Química, Universidad del Tolima, Ibagué 730006299, Colombia; (A.V.P.); (J.A.G.-O.); (D.P.V.-D.)
| | - Roberto Fernandez-Lafuente
- Departamento de Biocatálisis, ICP-CSIC, Campus Cantoblanco UAM-CSIC, C/Marie Curie 2, 28049 Madrid, Spain
| |
Collapse
|
5
|
Freitas CDT, Costa JH, Germano TA, de O Rocha R, Ramos MV, Bezerra LP. Class III plant peroxidases: From classification to physiological functions. Int J Biol Macromol 2024; 263:130306. [PMID: 38387641 DOI: 10.1016/j.ijbiomac.2024.130306] [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: 09/28/2023] [Revised: 02/14/2024] [Accepted: 02/18/2024] [Indexed: 02/24/2024]
Abstract
Peroxidases (EC 1.11.1.7) are involved in a wide range of physiological processes, hence their broad distribution across biological systems. These proteins can be classified as haem or non-haem enzymes. According to the RedOxiBase database, haem peroxidases are approximately 84 % of all known peroxidase enzymes. Class III plant peroxidases are haem-enzymes that share similar three-dimensional structures and a common catalytic mechanism for hydrogen peroxide degradation. They exist as large multigene families and are involved in metabolizing Reactive Oxygen Species (ROS), hormone synthesis and decomposition, fruit growth, defense, and cell wall synthesis and maintenance. As a result, plant peroxidases gained attention in research and became one of the most extensively studied groups of enzymes. This review provides an update on the database, classification, phylogeny, mechanism of action, structure, and physiological functions of class III plant peroxidases.
Collapse
Affiliation(s)
- Cleverson D T Freitas
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, Fortaleza, Ceará CEP 60451-970, Brazil.
| | - José H Costa
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, Fortaleza, Ceará CEP 60451-970, Brazil
| | - Thais A Germano
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, Fortaleza, Ceará CEP 60451-970, Brazil
| | - Raquel de O Rocha
- Department of Plant Pathology and Ecology, The Connecticut Agricultural Experiment Station, New Haven 06511, CT, USA
| | - Márcio V Ramos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, Fortaleza, Ceará CEP 60451-970, Brazil
| | - Leandro P Bezerra
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, Fortaleza, Ceará CEP 60451-970, Brazil
| |
Collapse
|
6
|
Maucourt F, Doumèche B, Nazaret S, Fraissinet-Tachet L. Under explored roles of microbial ligninolytic enzymes in aerobic polychlorinated biphenyl transformation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:19071-19084. [PMID: 38372925 DOI: 10.1007/s11356-024-32291-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 01/28/2024] [Indexed: 02/20/2024]
Abstract
Polychlorinated biphenyls (PCBs) are persistent organic pollutants in the environment that are responsible for many adverse health effects. Bioremediation appears to be a healthy and cost-effective alternative for remediating PCB-contaminated environments. While some microbial species have been observed to be capable of transforming PCBs, only two different microbial pathways (rdh and bph pathways) have been described to be involved in PCB transformations. Ligninolytic enzymes have been observed or are under suspicion in some microbial PCB transformations. However, the role of these promising PCB-transforming enzymes, which are produced by fungi and some aerobic bacteria, is still unclear. The present review describes their role by identifying microbial PCB-transforming species and their reported ligninolytic enzymes whether proven or suspected to be involved in PCB transformations. There are several lines of evidence that ligninolytic enzymes are responsible for PCB transformations such as (1) the ability of purified laccases from Myceliophthora thermophila, Pycnoporus cinnabarinus, Trametes versicolor, Cladosporium sp, and Coprinus cumatus to transform hydroxy-PCBs; (2) the increased production of laccases and peroxidases by many fungi in the presence of PCBs; and (3) the enhanced PCB transformation by Pseudomonas stutzeri and Sinorhizobium meliloti NM after the addition of ligninolytic enzyme enhancers. However, if the involvement of ligninolytic enzymes in PCB transformation is clearly demonstrated in some fungal species, it does not seem to be implicated in all microbial species suggesting other still unknown metabolic pathways involved in PCB transformation and different from the bph and rdh pathways. Therefore, PCB transformation may involve several metabolic pathways, some involving ligninolytic enzymes, bph or rdh genes, and some still unknown, depending on the microbial species. In addition, current knowledge does not fully clarify the role of ligninolytic enzymes in PCB oxidation and dechlorination. Therefore, further studies focusing on purified ligninolytic enzymes are needed to clearly elucidate their role in PCB transformation.
Collapse
Affiliation(s)
- Flavien Maucourt
- Université Claude Bernard Lyon 1, CNRS, INRAE, VetAgro Sup, UMR Ecologie Microbienne, F-7 69622, Villeurbanne, France
- ENVISOL, 2-4 rue Hector Berlioz, F-38110, La Tour du Pin, France
| | - Bastien Doumèche
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS 5246 ICBMS, F-7 69622, Villeurbanne, France
| | - Sylvie Nazaret
- Université Claude Bernard Lyon 1, CNRS, INRAE, VetAgro Sup, UMR Ecologie Microbienne, F-7 69622, Villeurbanne, France
| | - Laurence Fraissinet-Tachet
- Université Claude Bernard Lyon 1, CNRS, INRAE, VetAgro Sup, UMR Ecologie Microbienne, F-7 69622, Villeurbanne, France.
| |
Collapse
|
7
|
Gerni S, Özdemir H. Development of a new affinity chromatography method for purification of horseradish peroxidase enzyme. Biotechnol Appl Biochem 2024; 71:202-212. [PMID: 37904288 DOI: 10.1002/bab.2532] [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: 06/09/2023] [Accepted: 10/15/2023] [Indexed: 11/01/2023]
Abstract
In this study, benzohydroxamic acid molecules were synthesized from methyl 4-amino-2-methoxy, methyl 4-amino-3-nitro, methyl 4-amino-3-methyl, and methyl 4-amino-3-chloro benzoate molecules, and the horseradish peroxidase (HRP) enzyme was purified in one step using the affinity chromatography technique for the first time. The IC50 and Ki values for the 4-amino 3-methyl benzohydroxamic acid molecule were 0.136 and 0.132 ± 0.054 μM, respectively, while the IC50 and Ki values for the 4-amino-3-nitro benzohydroxamic acid molecule were 56.00 and 51.90 ± 9.90 μM, respectively. It was found that the IC50 and Ki values for the 4-amino-3-chloro benzohydroxamic acid molecule were 218.33 and 175.67 ± 43.78 μM, respectively, whereas the IC50 and Ki values for the 4-amino-2-methoxy benzohydroxamic acid molecule were 306.00 and 218.00 ± 68.80 μM, respectively. The HRP enzyme was synthesized from 4-amino-2-methoxy hydroxamic acid column with a 35.97% yield 601.13 times, 4-amino-3-nitro hydroxamic acid column, with a 14.00% yield 404.11 times, 4-amino-3-methyl hydroxamic acid column with an 8.70% yield 394.88 times, and 4-amino-3-chloro hydroxamic acid column with a 4.48% yield 284.85 times. Thus, the HRP enzyme was purified in a single step with hydroxamic acids, and its molecular weight was found to be 44 kDa. The optimum pH was 8.0, the optimum temperature was 15°C, and the optimum ionic strength was 0.4 M for the purified HRP enzyme.
Collapse
Affiliation(s)
- Serpil Gerni
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Hasan Özdemir
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey
| |
Collapse
|
8
|
Tang S, Sun LJ, Pan AQ, Huang J, Wang H, Lin YW. Application of engineered myoglobins for biosynthesis of clofazimine by integration with chemical synthesis. Org Biomol Chem 2023; 21:9603-9609. [PMID: 38014756 DOI: 10.1039/d3ob01687k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Significant efforts have been made in the design of artificial metalloenzymes. Myoglobin (Mb), an O2 carrier, has been engineered to exhibit different functions. Herein, we applied a series of engineered Mb mutants with peroxidase activity for biosynthesis of clofazimine (CFZ), a potential drug with a broad-spectrum antiviral activity, by integration with chemical synthesis. Two of those mutants, F43Y Mb and F43Y/T67R Mb, have been shown to efficiently catalyze the oxidative coupling of 2-N-(4-chlorophenyl) benzene-1,2-diamine (N-4-CPBDA) in the presence of H2O2, with 97% yields. The overall catalytic efficiency (kcat/Km) is 46-fold and 82-fold higher than that of WT Mb, respectively. By further combination of this reaction with chemical synthesis, the production of CFZ was accomplished with an isolated yield of 72%. These results showed that engineered Mbs containing the Tyr-heme cross-link (F43Y Mb and F43Y/T67R Mb) exhibit enhanced activity in the oxidative coupling reaction. This study also indicates that the combination of biocatalysis and chemical synthesis avoids the need for the separation of intermediate products, which offers a convenient approach for the total synthesis of the biological compound CFZ.
Collapse
Affiliation(s)
- Shuai Tang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China.
| | - Li-Juan Sun
- Hengyang Medical College, University of South China, Hengyang 421001, China
| | - Ai-Qun Pan
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China.
| | - Jun Huang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China.
| | - Huamin Wang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China.
| | - Ying-Wu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China.
- Hengyang Medical College, University of South China, Hengyang 421001, China
- Key Lab of Protein Structure and Function of Universities in Hunan Province, University of South China, Hengyang 421001, China
| |
Collapse
|
9
|
Ma L, Tao X, Wang W, Jiao J, Pu Y, Yang G, Liu L, Fang Y, Wu J, Sun W. Genome-wide identification of RNA recognition motif (RRM1) in Brassica rapa and functional analysis of RNA-binding protein (BrRBP) under low-temperature stress. BMC PLANT BIOLOGY 2023; 23:621. [PMID: 38057714 DOI: 10.1186/s12870-023-04639-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/29/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND The RNA recognition motif (RRM) is primarily engaged in the processing of mRNA and rRNA following gene transcription as well as the regulation of RNA transport; it is critical in preserving RNA stability. RESULTS In this study, we identified 102 members of the RRM1 gene family in Brassica rapa, which were dispersed across 10 chromosomes with the ninth chromosome being the most extensively distributed. The RRM1 gene family members of Brassica rapa and Arabidopsis thaliana were grouped into 14 subclades (I-XIV) using phylogenetic analysis. Moreover, the results of transcriptome analysis and RT-qPCR indicated that the expression of Brapa05T000840 was upregulated in the cultivars 'Longyou 7' and 'Longyou 99' following exposure to cold stress at a temperature of 4 °C for 24 h. The levels of expression in the leaves and growth cones of the 'Longyou 7' variety were found to be significantly higher than those observed in the 'Longyou 99' variety under conditions of low temperature and NaCl stress. It illustrates the involvement of the RRM1 gene in the physiological response to both low temperature and salt stress. In addition, it was observed that the survival rate of transgenic BrRBP (Brapa05T000840) Arabidopsis thaliana plants was notably higher compared to that of wild-type plants when subjected to varying durations of low temperature treatment. Furthermore, the expression of the BrRBP gene in transgenic plants exhibited an upward trend as the duration of low temperature treatment increased, reaching its peak at 24 h. The in-vivo enzymatic activity of reactive oxygen species-scavenging enzymes were found to be significantly elevated in comparison to wild-type plants, suggesting that the BrRBP gene may enhance the cold tolerance of Arabidopsis thaliana. CONCLUSIONS This study offers a significant foundation for comprehending the regulation mechanism of the RRM1 gene family in winter Brassica rapa subjected to cold stress, as well as for finding key genes associated with cold resistance.
Collapse
Affiliation(s)
- Li Ma
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
| | - Xiaolei Tao
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
- College of Agronomy, Gansu Agricultural University, Lanzhou, 730070, China
| | - Wangtian Wang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
| | - Jintang Jiao
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
- College of Agronomy, Gansu Agricultural University, Lanzhou, 730070, China
| | - Yuanyuan Pu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
- College of Agronomy, Gansu Agricultural University, Lanzhou, 730070, China
| | - Gang Yang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
- College of Agronomy, Gansu Agricultural University, Lanzhou, 730070, China
| | - Lijun Liu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
| | - Yan Fang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, 730070, China
| | - Junyan Wu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, 730070, China.
- College of Agronomy, Gansu Agricultural University, Lanzhou, 730070, China.
| | - Wancang Sun
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, 730070, China.
- College of Agronomy, Gansu Agricultural University, Lanzhou, 730070, China.
| |
Collapse
|
10
|
Silva MC, de Castro AA, Lopes KL, Ferreira IFL, Bretz RR, Ramalho TC. Combining computational tools and experimental studies towards endocrine disruptors mitigation: A review of biocatalytic and adsorptive processes. CHEMOSPHERE 2023; 344:140302. [PMID: 37788749 DOI: 10.1016/j.chemosphere.2023.140302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/05/2023]
Abstract
The endocrine disruptors (EDCs) are an important group of emerging contaminants, and their mitigation has been a huge challenge due to their chemistry complexity and variety of these compounds. The traditional treatments are inefficient to completely remove EDCs, and adsorptive processes are the major alternative investigated on their removal. Also, the use of EDCs degrading enzymes has been encouraged due to ecofriendly approach of biocatalytic processes. This paper highlights the occurrence, classification, and toxicity of EDCs with special focus in the use of enzyme-based and adsorptive technologies in the elimination of EDCs from ambiental matrices. Numerous prior reviews have focused on the discussions toward these technologies. However, the literature lacks theoretical discussions about important aspects of these methods such as the mechanisms of EDCs adsorption on the adsorbent surface or the interactions between degrading enzymes - EDCs. In this sense, theoretical calculations combined to experimental studies may help in the development of more efficient technologies to EDCs mitigation. In this review, we point out how computational tools such as molecular docking and molecular dynamics have to contribute to the design of new adsorbents and efficient catalytic processes towards endocrine disruptors mitigation.
Collapse
Affiliation(s)
- Maria Cristina Silva
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil.
| | | | - Karla Lara Lopes
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil
| | - Igor F Lara Ferreira
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil
| | - Raphael Resende Bretz
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil
| | - Teodorico C Ramalho
- Department of Chemistry, Federal University of Lavras, Lavras, Brazil; Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| |
Collapse
|
11
|
Nogueira WV, Aznar-García MJ, Martínez-Antequera FP, de Las Heras AMB, Tesser MB, Garda-Buffon J, Moyano FJ. Evaluation of Interactions of Added Soybean Peroxidase with Other Nutrients Present in Fish Feeds Using an In Vitro Digestive Simulation. Animals (Basel) 2023; 13:3046. [PMID: 37835652 PMCID: PMC10572071 DOI: 10.3390/ani13193046] [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: 09/02/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Peroxidase (PO) has been applied in different areas of industrial biotechnology, including the control of contaminants like aflatoxin B1 in fish feeds. However, its potential negative interactions with the macro and micro components of feeds have not been evaluated. The aim of this study was to evaluate the impact of PO's addition to a feed on compounds like fatty acids and polyphenols using an in vitro simulation of the digestive tract of the tilapia. The influence on fatty acids was determined by changes in the peroxide index, with the feed including PO presenting values four times higher than those of the control feed. On the other hand, the in vitro digestive simulation also evidenced an effect of PO on the bioaccessibility of polyphenols significantly influenced by the total digestion time and temperature. The bioaccessibility of polyphenol ranged from 2.09 to 16.23 μmol of the total Trolox equivalent antioxidant capacity for the combinations evaluated in the study. The greatest bioaccessibility was observed at the central point under the following conditions of digestive hydrolysis: pH of 7, 30 °C, 4.5 h of digestive hydrolysis and an absence of PO.
Collapse
Affiliation(s)
- Wesclen Vilar Nogueira
- Escola de Química e Alimentos, Universidade Federal do Rio Grande, Rio Grande 96203-900, RS, Brazil;
| | - María Jesús Aznar-García
- Departamento de Biología y Geología, Universidad de Almería, 04120 Almería, Spain; (M.J.A.-G.); (F.P.M.-A.); (A.M.B.d.L.H.)
| | | | - Antonia M. Barros de Las Heras
- Departamento de Biología y Geología, Universidad de Almería, 04120 Almería, Spain; (M.J.A.-G.); (F.P.M.-A.); (A.M.B.d.L.H.)
| | - Marcelo Borges Tesser
- Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande 96203-900, RS, Brazil;
| | - Jaqueline Garda-Buffon
- Escola de Química e Alimentos, Universidade Federal do Rio Grande, Rio Grande 96203-900, RS, Brazil;
| | - Francisco Javier Moyano
- Departamento de Biología y Geología, Universidad de Almería, 04120 Almería, Spain; (M.J.A.-G.); (F.P.M.-A.); (A.M.B.d.L.H.)
| |
Collapse
|
12
|
D'Alonzo D, De Fenza M, Pavone V, Lombardi A, Nastri F. Selective Oxidation of Halophenols Catalyzed by an Artificial Miniaturized Peroxidase. Int J Mol Sci 2023; 24:ijms24098058. [PMID: 37175773 PMCID: PMC10178546 DOI: 10.3390/ijms24098058] [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: 03/27/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
The development of artificial enzymes for application in sustainable technologies, such as the transformation of environmental pollutants or biomass, is one of the most challenging goals in metalloenzyme design. In this work, we describe the oxidation of mono-, di-, tri- and penta-halogenated phenols catalyzed by the artificial metalloenzyme Fe-MC6*a. It promoted the dehalogenation of 4-fluorophenol into the corresponding 1,4-benzoquinone, while under the same experimental conditions, 4-chloro, 4-bromo and 4-iodophenol were selectively converted into higher molecular weight compounds. Analysis of the 4-chlorophenol oxidation products clarified that oligomers based on C-O bonds were exclusively formed in this case. All results show that Fe-MC6*a holds intriguing enzymatic properties, as it catalyzes halophenol oxidation with substrate-dependent chemoselectivity.
Collapse
Affiliation(s)
- Daniele D'Alonzo
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Maria De Fenza
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Vincenzo Pavone
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Angela Lombardi
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Flavia Nastri
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| |
Collapse
|
13
|
Weng Y, Wan A, Li Y, Liu Y, Chen X, Song H, Zhao CX. Scalable manufacturing of enzyme loaded alginate particles with excellent thermal and storage stability for industrial applications. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
|
14
|
Fabbri F, Bischof S, Mayr S, Gritsch S, Jimenez Bartolome M, Schwaiger N, Guebitz GM, Weiss R. The Biomodified Lignin Platform: A Review. Polymers (Basel) 2023; 15:polym15071694. [PMID: 37050308 PMCID: PMC10096731 DOI: 10.3390/polym15071694] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/23/2023] [Accepted: 03/23/2023] [Indexed: 03/31/2023] Open
Abstract
A reliance on fossil fuel has led to the increased emission of greenhouse gases (GHGs). The excessive consumption of raw materials today makes the search for sustainable resources more pressing than ever. Technical lignins are mainly used in low-value applications such as heat and electricity generation. Green enzyme-based modifications of technical lignin have generated a number of functional lignin-based polymers, fillers, coatings, and many other applications and materials. These bio-modified technical lignins often display similar properties in terms of their durability and elasticity as fossil-based materials while also being biodegradable. Therefore, it is possible to replace a wide range of environmentally damaging materials with lignin-based ones. By researching publications from the last 20 years focusing on the latest findings utilizing databases, a comprehensive collection on this topic was crafted. This review summarizes the recent progress made in enzymatically modifying technical lignins utilizing laccases, peroxidases, and lipases. The underlying enzymatic reaction mechanisms and processes are being elucidated and the application possibilities discussed. In addition, the environmental assessment of novel technical lignin-based products as well as the developments, opportunities, and challenges are highlighted.
Collapse
|
15
|
Dan J, Su Z, Sun B, Wang J, Zhang W. A Polymetallic Nanozyme with High Peroxidase Mimetic Activity for Rapid Evaluation of Total Antioxidant Capacity. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
16
|
Tang M, Zhang Z, Sun T, Li B, Wu Z. Manganese-Based Nanozymes: Preparation, Catalytic Mechanisms, and Biomedical Applications. Adv Healthc Mater 2022; 11:e2201733. [PMID: 36050895 DOI: 10.1002/adhm.202201733] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/09/2022] [Indexed: 01/28/2023]
Abstract
Manganese (Mn) has attracted widespread attention due to its low-cost, nontoxicity, and valence-rich transition. Various Mn-based nanomaterials have sprung up and are employed in diverse fields, particularly Mn-based nanozymes, which combine the physicochemical properties of Mn-based nanomaterials with the catalytic activity of natural enzymes, and are attracting a surge of research, especially in the field of biomedical research. In this review, the typical preparation strategies, catalytic mechanisms, advances and perspectives of Mn-based nanozymes for biomedical applications are systematically summarized. The application of Mn-based nanozymes in tumor therapy and sensing detection, together with an overview of their mechanism of action is highlighted. Finally, the prospective directions of Mn-based nanozymes from five perspectives: innovation, activity enhancement, selectivity, biocompatibility, and application broadening are discussed.
Collapse
Affiliation(s)
- Minglu Tang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Engineering Research Center of Forest Bio-Preparation, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, P. R. China
| | - Zhaocong Zhang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Engineering Research Center of Forest Bio-Preparation, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, P. R. China
| | - Tiedong Sun
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Engineering Research Center of Forest Bio-Preparation, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, P. R. China
| | - Bin Li
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Engineering Research Center of Forest Bio-Preparation, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, P. R. China
| | - Zhiguang Wu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, P. R. China
| |
Collapse
|
17
|
Bioremoval and Detoxification of the Anticancer Drug Mitoxantrone Using Immobilized Crude Versatile Peroxidase (icVP/Ba) Bjerkandera adusta CCBAS 930. BIOLOGY 2022; 11:biology11111553. [PMID: 36358256 PMCID: PMC9687630 DOI: 10.3390/biology11111553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 11/29/2022]
Abstract
The aim of this study was to evaluate the biodecolorization and detoxification of the anticancer drug mitoxantron (MTX) by immobilized crude versatile peroxidase of Bjerkandera adusta CCBAS 930 (icVP/Ba). The concentrated crude VP was obtained from B. adusta CCBAS 930 culture on medium with MTX (µg/mL) addition, immobilized with 4% sodium alginate. MTX removal degree (decolorization), levels of phenolic compounds and free radicals were determined during MTX biotransformation. Moreover, the phytotoxicity (Lepidium sativum L.), biotoxicity (multi-species microbial assay, MARA), and genotoxicity (SOS Chromotest) of MTX were evaluated before and after the biological treatment. The use of icVP/Ba (95 U/mL) significantly shortened the bioremoval of 10 µg/mL MTX (95.57% after 72 h). MTX removal by icVP/Ba was correlated with an 85% and 90% decrease in the levels of phenolic compounds and free radicals, respectively. In addition, the use of icVP/Ba contributed to a decrease in the phyto-, bio-, and genotoxicity of MTX. This is the first study to describe the possibility of removing MTX using immobilized crude fungal peroxidase.
Collapse
|
18
|
da Silva FG, Formo EV, Camargo PHC. Achieving enhanced peroxidase-like activity in multimetallic nanorattles. Dalton Trans 2022; 51:15133-15141. [PMID: 36129247 DOI: 10.1039/d2dt02389j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold nanoparticles (Au NPs) have been extensively used as artificial enzymes, but their performance is still limited. We address this challenge by focusing on multimetallic nanorattles comprising an Au core inside a bimetallic AgAu shell, separated by a void (Au@AgAu NRs). They were prepared by a galvanic replacement approach and contained an ultrathin and porous shell comprising an AgAu alloy. By investigating the peroxide-like activity using TMB oxidation as a model transformation, we have found an increase of 152 fold in activities for the NRs relative to conventional Au NPs. Based on the kinetics results, the NRs also showed the lowest Km, indicating better interaction with the substrate and faster product formation. We also observed a linear relationship between the concentration of the product and oxTMB as a function of H2O2 concentration, which could be further applied for H2O2 sensing applications (colorimetric detection). These data suggest that the NRs enable the combined effect of an increased surface area relative to solid counterparts, the possibility of exposing highly active surface sites, and the exploitation of nanoconfinement effects due to the void regions between the core and shell components. These results provide important insights into the optimization of peroxidase-like performances beyond what can be achieved in conventional NPs and may inspire the development of better-performing artificial enzymes.
Collapse
Affiliation(s)
- Flavia G da Silva
- University of Helsinki, Department of Chemistry, A.I. Virtasen aukio 1, Helsinki, Finland.
| | - Eric V Formo
- University of Georgia, Georgia Electron Microscopy, Athens, Georgia 30602, USA
| | - Pedro H C Camargo
- University of Helsinki, Department of Chemistry, A.I. Virtasen aukio 1, Helsinki, Finland.
| |
Collapse
|
19
|
Li YS, Wang B, Zhao Y, Gao XF. Simultaneous quantification of peroxidase/ascorbate in vegetables with slope and intercept of kinetic curves in a flow-injection recirculating-catalysis system. Food Chem 2022; 388:133053. [PMID: 35483291 DOI: 10.1016/j.foodchem.2022.133053] [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: 01/16/2022] [Revised: 03/31/2022] [Accepted: 04/21/2022] [Indexed: 11/04/2022]
Abstract
In using a flow-injection recirculating-catalysis system developed by us to research the simultaneous quantification for peroxidase and ascorbate, it was discovered that the concentrations of peroxidase activity and ascorbate are correlative with the slope and the negative intercept of the linear response curve during a peroxidase-catalyzed kinetic course. Therefore, based on this finding, a new analytical method and a simplified equation for quantifying the peroxidase activity concentration were proposed, Then, test conditions were optimized, finally the use of the method has realized the simultaneous determination for peroxidase of 2-40 U/L and ascorbate of 0.4-12 mg/L in various vegetables (60 μL). The assayed results were consistent with the comparison method, in which the repeatability (RSD < 1.43%, n = 11) was satisfactory. Another important conclusion obtained in this study is that the determination of the peroxidase activity in biosamples must use the kinetic curve method for fear of the influence from the ascorbate's lag phase.
Collapse
Affiliation(s)
- Yong-Sheng Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| | - Ben Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yang Zhao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiu-Feng Gao
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610065, China.
| |
Collapse
|
20
|
Lyu Z, Ding S, Du D, Qiu K, Liu J, Hayashi K, Zhang X, Lin Y. Recent advances in biomedical applications of 2D nanomaterials with peroxidase-like properties. Adv Drug Deliv Rev 2022; 185:114269. [PMID: 35398244 DOI: 10.1016/j.addr.2022.114269] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/20/2022] [Accepted: 04/02/2022] [Indexed: 01/10/2023]
Abstract
Significant progress has been made in developing two-dimensional (2D) nanomaterials owing to their ultra-thin structure, high specific surface area, and many other advantages. Recently, 2D nanomaterials with enzyme-like properties, especially peroxidase (POD)-like activity, are highly desirable for many biomedical applications. In this review, we first classify the types of 2D POD-like nanomaterials and then summarize various strategies for endowing 2D nanomaterials with POD-like properties. Representative examples of biomedical applications are reviewed, emphasizing in antibacterial, biosensing, and cancer therapy. Last, the future challenges and prospects of 2D POD-like nanomaterials are discussed. This review is expected to provide an in-depth understanding of 2D POD-like materials for biomedical applications.
Collapse
|
21
|
Recent Advances in Electrochemical Sensing of Hydrogen Peroxide (H 2O 2) Released from Cancer Cells. NANOMATERIALS 2022; 12:nano12091475. [PMID: 35564184 PMCID: PMC9103167 DOI: 10.3390/nano12091475] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 12/26/2022]
Abstract
Cancer is by far the most common cause of death worldwide. There are more than 200 types of cancer known hitherto depending upon the origin and type. Early diagnosis of cancer provides better disease prognosis and the best chance for a cure. This fact prompts world-leading scientists and clinicians to develop techniques for the early detection of cancer. Thus, less morbidity and lower mortality rates are envisioned. The latest advancements in the diagnosis of cancer utilizing nanotechnology have manifested encouraging results. Cancerous cells are well known for their substantial amounts of hydrogen peroxide (H2O2). The common methods for the detection of H2O2 include colorimetry, titration, chromatography, spectrophotometry, fluorimetry, and chemiluminescence. These methods commonly lack selectivity, sensitivity, and reproducibility and have prolonged analytical time. New biosensors are reported to circumvent these obstacles. The production of detectable amounts of H2O2 by cancerous cells has promoted the use of bio- and electrochemical sensors because of their high sensitivity, selectivity, robustness, and miniaturized point-of-care cancer diagnostics. Thus, this review will emphasize the principles, analytical parameters, advantages, and disadvantages of the latest electrochemical biosensors in the detection of H2O2. It will provide a summary of the latest technological advancements of biosensors based on potentiometric, impedimetric, amperometric, and voltammetric H2O2 detection. Moreover, it will critically describe the classification of biosensors based on the material, nature, conjugation, and carbon-nanocomposite electrodes for rapid and effective detection of H2O2, which can be useful in the early detection of cancerous cells.
Collapse
|
22
|
Liu J, Wang Y, Ma W, Zong S, Li J. Biomass-based Carbon Dots as Peroxidase Mimics for Colorimetric Detection of Glutathione and L-Cysteine. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2021-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
23
|
Oxidation of dobutamine and dopamine by horseradish peroxidase. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
24
|
Gong Z, Wang G, Shao S, Wang M, Lu K, Gao S. Co-degradation of coexisting pollutants methylparaben (mediators) and amlodipine in enzyme-mediator systems: Insight into the mediating mechanism. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127112. [PMID: 34523479 DOI: 10.1016/j.jhazmat.2021.127112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/24/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Catalyzed oxidative reactions mediated by enzymes have been proposed as an effective remediation strategy to remove micropollutants. However, enzyme-catalyzed oxidation processes are usually limited to the substrates of phenols and amine compounds. The addition of synthetic redox mediators could extend the types of enzyme-catalyzed substrates. However, the actual applications were hindered by the high cost and potential toxicity of mediators. Here, we discovered a potential HRP-mediator system by exploring the removal of co-existing pollutants amlodipine (AML) and methylparaben (MeP). It was found that MeP served as a redox mediator could efficiently mediate the removal of AML by HRP/H2O2 system. Surface electrostatic potential analysis of AML molecule suggested that MeP radicals (MePOX) could abstract hydrogen from the N-H site on dihydropyridine moiety of AML and then be reduced to MeP. By exploring the mediating effects of substances with MeP-like structure, Hirshfeld charge was used to evaluate the mediating efficiency of mediators. For mediating the degradation of AML, when the Hirshfeld charge of mediator radical was around - 0.3000, the mediating efficiency was the highest. This study improved the HRP-mediated system and provided an efficient and green method for the degradation of co-existing pollutants AML and MeP.
Collapse
Affiliation(s)
- Zhimin Gong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China
| | - Gaobo Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing 210093, PR China
| | - Shuai Shao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China
| | - Mengjie Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China
| | - Kun Lu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China.
| | - Shixiang Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China.
| |
Collapse
|
25
|
Pauli MC, Kanemaru MYS, Francisco Vieira-Junior W, Lima DANL, Bicas JL, Leonardi GR. Current status of whitening agents and enzymes in Dentistry. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-979020201000x32e19501] [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] Open
|
26
|
Chai J, Yuan L, Wang S, Li T, Wu M, Huang Z, Yin H. A series of novel Cu-based MOFs: syntheses, structural diversity, catalytic properties and mimic peroxidase activity for colorimetric detection of H 2O 2. NEW J CHEM 2022. [DOI: 10.1039/d2nj01981g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Three MOFs with three different types of Cu clusters have been synthesized. MOFs 1–3 efficiently catalyze the oxidation of cycloalkanes under mild conditions. Besides, MOFs 1–3 exhibited high peroxidase-like activity and could be applied for colorimetric detection of H2O2.
Collapse
Affiliation(s)
- Juan Chai
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, P. R. China
| | - Luohao Yuan
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, P. R. China
- Institute of Industrial Catalysis, College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Shiwei Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, P. R. China
| | - Tong Li
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, P. R. China
| | - Mingxue Wu
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Zhiwei Huang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, P. R. China
| | - Hongfeng Yin
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, P. R. China
| |
Collapse
|
27
|
Yacon (Smallanthus sonchifolius) peel as a promising peroxidase source for the treatment of phenolic wastewater. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2021.102254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
28
|
Wu Y, Fu C, Shi W, Chen J. Recent advances in catalytic hairpin assembly signal amplification-based sensing strategies for microRNA detection. Talanta 2021; 235:122735. [PMID: 34517602 DOI: 10.1016/j.talanta.2021.122735] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/20/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022]
Abstract
Accumulative evidences have indicated that abnormal expression of microRNAs (miRNAs) is closely associated with many health disorders, making them be regarded as potentialbiomarkers for early clinical diagnosis. Therefore, it is extremely necessary to develop a highly sensitive, specific and reliable approach for miRNA analysis. Catalytic hairpin assembly (CHA) signal amplification is an enzyme-free toehold-mediated strand displacement method, exhibiting significant potential in improving the sensitivity of miRNA detection strategies. In this review, we first describe the potential of miRNAs as disease biomarkers and therapeutics, and summarize the latest advances in CHA signal amplification-based sensing strategies for miRNA monitoring. We describe the characteristics and mechanism of CHA signal amplification and classify the CHA-based miRNA sensing strategies into several categories based on the "signal conversion substance", including fluorophores, enzymes, nanomaterials, and nucleotide sequences. Sensing performance, limit of detection, merits and disadvantages of these miRNA sensing strategies are discussed. Moreover, the current challenges and prospects are also presented.
Collapse
Affiliation(s)
- Yan Wu
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China.
| | - Cuicui Fu
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China
| | - Wenbing Shi
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China
| | - Jinyang Chen
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China.
| |
Collapse
|
29
|
Lee A, Kang W, Choi JS. Highly Enhanced Enzymatic Activity of Mn-Induced Carbon Dots and Their Application as Colorimetric Sensor Probes. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3046. [PMID: 34835810 PMCID: PMC8625186 DOI: 10.3390/nano11113046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/29/2021] [Accepted: 11/09/2021] [Indexed: 11/28/2022]
Abstract
Nanomaterial-based enzyme mimetics (nanozymes) have attracted significant interest because of their lower cost and higher stability compared to natural enzymes. In this study, we focused on improving the enzymatic properties of metal induced N-doped carbon dots (N-CDs), which are nanozymes of interest, and their applications for sensory systems. For this purpose, Mn(acetate)2 was introduced during the synthetic step of N-doped carbon dots, and its influence on the enzymatic properties of Mn-induced N-CDs (Mn:N-CDs) was investigated. Their chemical structure was analyzed through infrared spectroscopy and X-ray photoelectron spectrometry; the results suggest that Mn ions lead to the variation in the population of chemical bonding in Mn:N-CDs, whereas these ions were not incorporated into N-CD frameworks. This structural change improved the enzymatic properties of Mn:N-CDs with respect to those of N-CDs when the color change of a 3,3',5,5'-tetramethylbenzidine/H2O2 solution was examined in the presence of Mn:N-CDs and N-CDs. Based on this enhanced enzymatic property, a simple colorimetric system with Mn:N-CDs was used for the detection of γ-aminobutyric acid, which is an indicator of brain-related disease. Therefore, we believe that Mn:N-CDs will be an excellent enzymatic probe for the colorimetric sensor system.
Collapse
Affiliation(s)
| | | | - Jin-sil Choi
- Department of Chemical and Biological Engineering, Hanbat National University, Daejeon 34158, Korea; (A.L.); (W.K.)
| |
Collapse
|
30
|
Głowacka J, Strzelak K, Koncki R. Multicommutated Flow Analysis System for Determination of Horseradish Peroxidase and Its Inhibitors. Molecules 2021; 26:molecules26185630. [PMID: 34577101 PMCID: PMC8465280 DOI: 10.3390/molecules26185630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/08/2021] [Accepted: 09/13/2021] [Indexed: 11/16/2022] Open
Abstract
A fully mechanized multicommutated flow analysis (MCFA) system dedicated to determining horseradish peroxidase (HRP) activity was developed. Detection was conducted using a flow-through optoelectronic detector-constructed of paired LEDs operating according to the paired emitter-detector diode (PEDD) principle. The PEDD-MCFA system is dedicated to monitoring the enzyme-catalyzed oxidation of p-phenylenediamine (pPD) by a hydrogen peroxide. Under optimized conditions, the presented bioanalytical system was characterized by a linear response range (33.47-200 U/L) with a detection limit at 10.54 U/L HRP activity and 1.66 mV·L/U sensitivity, relatively high throughput (12 signals recordings per hour), and acceptable precision (RSD below 6%). Additionally, the utility of the developed PEDD-MCFA system for the determination of HRP inhibitors allowing the detection of selected thiols at micromolar levels, is demonstrated. The practical utility of the flow system was illustrated by the analysis of some dietary supplements containing L-cysteine, N-acetylcysteine, and L-glutathione.
Collapse
|
31
|
Li X, Chen D, Yang Y, Liu Y, Luo L, Chen Q, Yang Y. Comparative transcriptomics analysis reveals differential Cd response processes in roots of two turnip landraces with different Cd accumulation capacities. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 220:112392. [PMID: 34102395 DOI: 10.1016/j.ecoenv.2021.112392] [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: 03/10/2021] [Revised: 05/05/2021] [Accepted: 05/28/2021] [Indexed: 06/12/2023]
Abstract
Understanding the molecular mechanisms of cadmium (Cd) tolerance and accumulation in plants is important to address Cd pollution. In the present study, we performed comparative transcriptome analysis to identify the Cd response processes in the roots of two turnip landraces, KTRG-B14 (high-Cd accumulation) and KTRG-B36 (low-Cd accumulation). Two common enhanced processes, glutathione metabolism and antioxidant system, were identified in both landraces. However, some differential antioxidant processes are likely employed by two landraces, namely, several genes encoding peptide methionine sulfoxide reductases and thioredoxins were up-regulated in B14, whereas flavonoid synthesis was potentially induced to fight against oxidative stress in B36. In addition to the commonly upregulated ZINC INDUCED FACILITATOR 1-like gene in two landraces, different metal transporter-encoding genes identified in B14 (DETOXIFICATION 1) and B36 (PLANT CADMIUM RESISTANCE 2-like, probable zinc transporter 10, and ABC transporter C family member 3) were responsible for Cd accumulation and distribution in cells. Several genes that encode extensins were specifically upregulated in B14, which may improve Cd accumulation in cell walls or regulate root development to absorb more Cd. Meanwhile, the induced high-affinity nitrate transporter 2.1-like gene was also likely to contribute to the higher Cd accumulation in B14. However, Cd also caused some toxic symptoms in both landraces. Cd stress might inhibit iron uptake in both landraces whereas many apoenzyme-encoding genes were influenced in B36, which may be attributed to the interaction between Cd and other metal ions. This study provides novel insights into the molecular mechanism of plant root response to Cd at an early stage. The transporters and key enzymes identified in this study are helpful for the molecular-assisted breeding of low- or high-Cd-accumulating plant resources.
Collapse
Affiliation(s)
- Xiong Li
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Di Chen
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ya Yang
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yuanyuan Liu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Landi Luo
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China
| | - Qian Chen
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yongping Yang
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Xishuangbanna 666303, China.
| |
Collapse
|
32
|
Hamedi S, Afsahi MM, Riahi-Madvar A, Mohebbi A. Modeling and optimization of radish root extract drying as peroxidase source using spouted bed dryer. Sci Rep 2021; 11:14362. [PMID: 34257335 PMCID: PMC8277770 DOI: 10.1038/s41598-021-93563-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 06/28/2021] [Indexed: 11/29/2022] Open
Abstract
The main advantages of the dried enzymes are the lower cost of storage and longer time of preservation for industrial applications. In this study, the spouted bed dryer was utilized for drying the garden radish (Raphanus sativus L.) root extract as a cost-effective source of the peroxidase enzyme. The response surface methodology (RSM) was used to evaluate the individual and interactive effects of main parameters (the inlet air temperature (T) and the ratio of air flow rate to the minimum spouting air flow rate (Q)) on the residual enzyme activity (REA). The maximum REA of 38.7% was obtained at T = 50 °C and Q = 1.4. To investigate the drying effect on the catalytic activity, the optimum reaction conditions (pH and temperature), as well as kinetic parameters, were investigated for the fresh and dried enzyme extracts (FEE and DEE). The obtained results showed that the optimum pH of DEE was decreased by 12.3% compared to FEE, while the optimum temperature of DEE compared to FEE increased by a factor of 85.7%. Moreover, kinetic parameters, thermal-stability, and shelf life of the enzyme were considerably improved after drying by the spouted bed. Overall, the results confirmed that a spouted bed reactor can be used as a promising method for drying heat-sensitive materials such as peroxidase enzyme.
Collapse
Affiliation(s)
- Shahrbanoo Hamedi
- Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
| | - M Mehdi Afsahi
- Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Ali Riahi-Madvar
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, Kosar University of Bojnord, Bojnord, Iran.
| | - Ali Mohebbi
- Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
| |
Collapse
|
33
|
Kirsanov D, Mukherjee S, Pal S, Ghosh K, Bhattacharyya N, Bandyopadhyay R, Jendrlin M, Radu A, Zholobenko V, Dehabadi M, Legin A. A Pencil-Drawn Electronic Tongue for Environmental Applications. SENSORS 2021; 21:s21134471. [PMID: 34210087 PMCID: PMC8272086 DOI: 10.3390/s21134471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/18/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022]
Abstract
We report on the development of a simple and cost-effective potentiometric sensor array that is based on manual “drawing” on the polymeric support with the pencils composed of graphite and different types of zeolites. The sensor array demonstrates distinct sensitivity towards a variety of inorganic ions in aqueous media. This multisensor system has been successfully applied to quantitative analysis of 100 real-life surface waters sampled in Mahananda and Hooghly rivers in the West Bengal state (India). Partial least squares regression has been utilized to relate responses of the sensors to the values of different water quality parameters. It has been found that the developed sensor array, or electronic tongue, is capable of quantifying total hardness, total alkalinity, and calcium content in the samples, with the mean relative errors below 18%.
Collapse
Affiliation(s)
- Dmitry Kirsanov
- Institute of Chemistry, Mendeleev Center, St. Petersburg State University, Universitetskaya nab. 7/9, St Petersburg 199034, Russia; (M.D.); (A.L.)
- Laboratory of Artificial Sensory Systems, ITMO University, Kronversky pr. 49, St Petersburg 197101, Russia
- Correspondence:
| | - Subhankar Mukherjee
- Agri and Environmental Electronics (AEE) Group, Centre for Development of Advanced Computing (C-DAC), Sector—V, Salt Lake, Kolkata 700091, India; (S.M.); (S.P.); (K.G.); (N.B.)
| | - Souvik Pal
- Agri and Environmental Electronics (AEE) Group, Centre for Development of Advanced Computing (C-DAC), Sector—V, Salt Lake, Kolkata 700091, India; (S.M.); (S.P.); (K.G.); (N.B.)
| | - Koustuv Ghosh
- Agri and Environmental Electronics (AEE) Group, Centre for Development of Advanced Computing (C-DAC), Sector—V, Salt Lake, Kolkata 700091, India; (S.M.); (S.P.); (K.G.); (N.B.)
| | - Nabarun Bhattacharyya
- Agri and Environmental Electronics (AEE) Group, Centre for Development of Advanced Computing (C-DAC), Sector—V, Salt Lake, Kolkata 700091, India; (S.M.); (S.P.); (K.G.); (N.B.)
| | - Rajib Bandyopadhyay
- Department of Instrumentation & Electronics Engg, Jadavpur University, Salt Lake Campus, Block LB, Sector III, Kolkata 700098, India;
| | - Martin Jendrlin
- Lennard-Jones Laboratories, Birchall Centre, Keele University, Keele, Staffordshire ST5 5BG, UK; (M.J.); (A.R.); (V.Z.)
| | - Aleksandar Radu
- Lennard-Jones Laboratories, Birchall Centre, Keele University, Keele, Staffordshire ST5 5BG, UK; (M.J.); (A.R.); (V.Z.)
| | - Vladimir Zholobenko
- Lennard-Jones Laboratories, Birchall Centre, Keele University, Keele, Staffordshire ST5 5BG, UK; (M.J.); (A.R.); (V.Z.)
| | - Monireh Dehabadi
- Institute of Chemistry, Mendeleev Center, St. Petersburg State University, Universitetskaya nab. 7/9, St Petersburg 199034, Russia; (M.D.); (A.L.)
| | - Andrey Legin
- Institute of Chemistry, Mendeleev Center, St. Petersburg State University, Universitetskaya nab. 7/9, St Petersburg 199034, Russia; (M.D.); (A.L.)
- Laboratory of Artificial Sensory Systems, ITMO University, Kronversky pr. 49, St Petersburg 197101, Russia
| |
Collapse
|
34
|
Ma N, Fang W, Liu C, Qin X, Wang X, Jin L, Wang B, Cong Z. Switching an Artificial P450 Peroxygenase into Peroxidase via Mechanism-Guided Protein Engineering. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02698] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nana Ma
- CAS Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenhan Fang
- Department of Chemistry, Xiamen University, Xiamen, Fujian 361005, China
| | - Chuanfei Liu
- CAS Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China
| | - Xiangquan Qin
- CAS Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China
- Department of Chemistry, College of Science, Yanbian University, Yanji, Jilin 133002, China
| | - Xiling Wang
- CAS Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China
| | - Longyi Jin
- Department of Chemistry, College of Science, Yanbian University, Yanji, Jilin 133002, China
| | - Binju Wang
- Department of Chemistry, Xiamen University, Xiamen, Fujian 361005, China
| | - Zhiqi Cong
- CAS Key Laboratory of Biofuels and Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
35
|
Maryskova M, Linhartova L, Novotny V, Rysova M, Cajthaml T, Sevcu A. Laccase and horseradish peroxidase for green treatment of phenolic micropollutants in real drinking water and wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:31566-31574. [PMID: 33606164 DOI: 10.1007/s11356-021-12910-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
Biologically active micropollutants that contain diverse phenolic/aromatic structures are regularly present in wastewater effluents and are even found in drinking water. Advanced green technologies utilizing immobilized laccase and/or peroxidase, which target these micropollutants directly, may provide a reasonable alternative to standard treatments. Nevertheless, the use of these enzymes is associated with several issues that may prevent their application, such as the low activity of laccase at neutral and basic pH or the necessity of hydrogen peroxide addition as a co-substrate for peroxidases. In this study, the activity of laccase from Trametes versicolor and horseradish peroxidase was evaluated across a range of commonly used substrates (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), syringaldazine, and guaiacol). Moreover, conditions for their optimal performance were explored along with an assessment of whether these conditions accurately reflect the effectivity of both enzymes in the degradation of a mixture of bisphenol A, 17α-ethinylestradiol, triclosan, and diclofenac in tap drinking water and secondary wastewater effluent. Laccase and horseradish peroxidase showed optimal activity at strongly acidic pH if ABTS was used as a substrate. Correspondingly, the activities of both enzymes detected using ABTS in real waters were significantly enhanced by adding approximately 2.5% (v/v) of McIlvaine's buffer. Degradation of a mixture of micropollutants in wastewater with 2.5% McIlvaine's buffer (pH 7) resulted in a substantial decrease in estrogenic activity. Low degradation efficiency of micropollutants by laccase was observed in pure McIlvaine's buffer of pH 3 and 7, compared with efficient degradation in tap water of pH 7.5 without buffer. This study clearly shows that enzyme activity needs to be evaluated on micropollutants in real waters as the assessment of optimal conditions based on commonly used substrates in pure buffer or deionized water can be misleading.
Collapse
Affiliation(s)
- Milena Maryskova
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 1409/7, 461 17, Liberec, Czech Republic.
- Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, Studentska 1402/2, 461 17, Liberec, Czech Republic.
| | - Lucie Linhartova
- Institute for Environmental Studies, Faculty of Science, Charles University, Benatska 2, 128 01, Prague 2, Czech Republic
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 4, Czech Republic
| | - Vit Novotny
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 1409/7, 461 17, Liberec, Czech Republic
| | - Miroslava Rysova
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 1409/7, 461 17, Liberec, Czech Republic
| | - Tomas Cajthaml
- Institute for Environmental Studies, Faculty of Science, Charles University, Benatska 2, 128 01, Prague 2, Czech Republic
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 4, Czech Republic
| | - Alena Sevcu
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 1409/7, 461 17, Liberec, Czech Republic.
| |
Collapse
|
36
|
Zhang C, Hu C, Sun Y, Zhang X, Wang Y, Fu H, Chen X, Wang Y. Blanching effects of radio frequency heating on enzyme inactivation, physiochemical properties of green peas (Pisum sativum L.) and the underlying mechanism in relation to cellular microstructure. Food Chem 2021; 345:128756. [PMID: 33302106 DOI: 10.1016/j.foodchem.2020.128756] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/26/2020] [Accepted: 11/26/2020] [Indexed: 11/19/2022]
Abstract
Fresh green peas require blanching to terminate enzymatic reaction induced quality deterioration before frozen storage. Radio frequency (RF) heating is a novel way of dry blanching for fruits and vegetables with high processing efficiency. In this study, blanching effects of RF heating on relative activities of lipoxygenase (LOX) and peroxidase (POD), physiochemical properties as well as cellular morphology changes of green peas were investigated. Results showed relative activities of pea LOX and POD reduced to 0.90 ± 0.78% and 1.10 ± 0.71%, respectively at 85 °C by RF heating with an electrode gap 105 mm. Weight loss, color, texture and electrolyte leakage of peas changed significantly with increasing temperature (60-85 °C). Ascorbic acid, chlorophyll and mineral contents had different loss after RF processing and long term heating at 115 mm exacerbated the loss of nutrients. Microstructure features showed the deconstruction of pea cell well and starch granule gelatinization.
Collapse
Affiliation(s)
- Caiyue Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chenchen Hu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yanan Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xueying Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yequn Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hongfei Fu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiangwei Chen
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yunyang Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
| |
Collapse
|
37
|
Mechanism of action, sources, and application of peroxidases. Food Res Int 2021; 143:110266. [PMID: 33992367 DOI: 10.1016/j.foodres.2021.110266] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/28/2021] [Accepted: 02/21/2021] [Indexed: 02/06/2023]
Abstract
Peroxidase is an enzyme in the group of oxidoreductases that is widely distributed in nature. It can catalyze the oxidation of various organic and inorganic substrates by reacting with hydrogen peroxide and similar molecules. Due to its wide catalytic activity, peroxidases can act in the removal of both phenolic compounds and peroxides, in chemical synthesis and, according to recent studies, in mycotoxin degradation. Therefore, this study aimed at introducing an overview of the mechanism of peroxidase action, extraction sources, mycotoxin degradation capacity and other potential applications in the food industry.
Collapse
|
38
|
Lin YW. Biodegradation of aromatic pollutants by metalloenzymes: A structural-functional-environmental perspective. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213774] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
39
|
Abstract
Microalgae have become an attractive natural source of a diverse range of biomolecules, including enzymatic and non-enzymatic antioxidants; nevertheless, economically sustainable production of such compounds from microalgae biomass is still challenging. The main hurdles are: (a) increasing microalgae yield; (b) achieving optimal cultivation conditions; (c) energy-efficient and cost-effective downstream processing (extraction and purification); (d) optimal storage of post-processed antioxidant molecules. This review provides a detailed overview of enzymatic and non-enzymatic antioxidants in the cellular metabolism of the commercially important microalgae Dunaliella, industrial applications of antioxidant enzymes, strategies to enhanced antioxidant accumulation in cells, and the opportunities and limitations of current technologies for antioxidant enzymes production from microalgae biomass as an alternative to common microbial sources.
Collapse
|
40
|
Baydemir Peşint G, Zenger O, Perçin I, Denizli A. Spongy membranes for peroxidase purification from Brassica oleracea roots. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
41
|
Extraction of ingredients from tea leaves using oxidative enzymatic reaction and optimization of extraction conditions. Sci Rep 2021; 11:4094. [PMID: 33602953 PMCID: PMC7892889 DOI: 10.1038/s41598-021-83232-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 02/01/2021] [Indexed: 11/27/2022] Open
Abstract
Peroxidase (POD) and polyphenol oxidase (PPO) are used as biocatalyst in many processes such as oxidization reactions, wastewater treatment, phenol synthesis and so on. The purpose of current study is enzymes extraction from biomass (tea leaves) as well as evaluation of their activation. Different parameters including temperature, buffer concentration, buffer type, buffer/tea leaves ratio, addition of high molecular weight polymers and emulsifiers, and pH were optimized in order to obtain the highest enzymes activity. Response Surface Methodology (RSM) procedure is employed for statistical analysis of enzymes extraction. It is understood from the result that PPO and POD possess the highest activity at temperatures of 25 °C and 50 °C, pH 7 and 5, buffer molarity of 0.1, and 0.05, buffer/tea leaves ratio = 5 for both, contact time = 20 min and 10 min, and presence of 6% and 3% PVP, 5% and 0% Tween 80 for PPO and POD, respectively. Amounts of highest activity for PPO and POD biocatalysts were calculated 0.42 U/mL and 0.025493 U/mL, respectively. Moreover, the entire inactivation of PPO took place after 30 min at 40 °C and 60 °C and 20 min at 80 °C. However, POD lost 35% of its activity after 30 min at 40 °C and 60 °C. The amount of 6% POD activity was kept after 45 min at 80 °C. Generally, it was indicated that POD was more resistant to thermal treatment than PPO.
Collapse
|
42
|
Chen SF, Liu XC, Xu JK, Li L, Lang JJ, Wen GB, Lin YW. Conversion of Human Neuroglobin into a Multifunctional Peroxidase by Rational Design. Inorg Chem 2021; 60:2839-2845. [PMID: 33539081 DOI: 10.1021/acs.inorgchem.0c03777] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Protein design has received much attention in the last decades. With an additional disulfide bond to enhance the protein stability, human A15C neuroglobin (Ngb) is an ideal protein scaffold for heme enzyme design. In this study, we rationally converted A15C Ngb into a multifunctional peroxidase by replacing the heme axial His64 with an Asp residue, where Asp64 and the native Lys67 at the heme distal site were proposed to act as an acid-base catalytic couple for H2O2 activation. Kinetic studies showed that the catalytic efficiency of A15C/H64D Ngb was much higher (∼50-80-fold) than that of native dehaloperoxidase, which even exceeds (∼3-fold) that of the most efficient native horseradish peroxidase. Moreover, the dye-decolorizing peroxidase activity was also comparable to that of some native enzymes. Electron paramagnetic resonance, molecular docking, and isothermal titration calorimetry studies provided valuable information for the substrate-protein interactions. Therefore, this study presents the rational design of an efficient multifunctional peroxidase based on Ngb with potential applications such as in bioremediation for environmental sustainability.
Collapse
Affiliation(s)
- Shun-Fa Chen
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Xi-Chun Liu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Jia-Kun Xu
- Key Lab of Sustainable Development of Polar Fisheries, Ministry of Agriculture and Rural Affairs, Lab for Marine Drugs and Byproducts of Pilot National Lab for Marine Science and Technology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Lianzhi Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China
| | - Jia-Jia Lang
- Laboratory of Protein Structure and Function, University of South China Medical School, Hengyang 421001, China
| | - Ge-Bo Wen
- Laboratory of Protein Structure and Function, University of South China Medical School, Hengyang 421001, China
| | - Ying-Wu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China.,Laboratory of Protein Structure and Function, University of South China Medical School, Hengyang 421001, China
| |
Collapse
|
43
|
da Silva Freires A, Botelho CN, Silva SM, Goulart MOF, Damos FS, Luz RDCS. Photoelectrochemical biosensor for 1,4-dihydroxybenzene based on copper sulfide and horseradish peroxidase enzyme: Application in skin cream samples. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
44
|
Koohi S, Nasernejad B, Zare MH, Elahifard M, Shirazian S, Ghadiri M. Extraction of Oxidative Enzymes from Green Tea Leaves and Optimization of Extraction Conditions. Chem Eng Technol 2020. [DOI: 10.1002/ceat.202000344] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Saleh Koohi
- Amirkabir University of Technology Chemical Engineering Department Tehran Iran
| | - Bahram Nasernejad
- Amirkabir University of Technology Chemical Engineering Department Tehran Iran
| | - Masoud Habibi Zare
- Isfahan University of Technology Department of Chemical Engineering 84156-83111 Isfahan Iran
| | - Maryam Elahifard
- Islamic Azad University Department of Food Technology, Mahallat Branch Mahallat Iran
| | - Saeed Shirazian
- University of Limerick Department of Chemical Sciences Bernal Institute Limerick Ireland
- South Ural State University Laboratory of Computational Modeling of Drugs 76 Lenin prospekt 454080 Chelyabinsk Russia
| | - Mahdi Ghadiri
- Duy Tan University Institute of Research and Development 550000 Da Nang Vietnam
- Duy Tan University The Faculty of Environment and Chemical Engineering 550000 Da Nang Vietnam
| |
Collapse
|
45
|
Peroxidase from waste cabbage (Brassica oleracea capitata L.) exhibits the potential to biodegrade phenol and synthetic dyes from wastewater. SCIENTIFIC AFRICAN 2020. [DOI: 10.1016/j.sciaf.2020.e00608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
|
46
|
Wu Y, Cui S, Li Q, Zhang R, Song Z, Gao Y, Chen W, Xing D. Recent advances in duplex-specific nuclease-based signal amplification strategies for microRNA detection. Biosens Bioelectron 2020; 165:112449. [DOI: 10.1016/j.bios.2020.112449] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/06/2020] [Accepted: 07/12/2020] [Indexed: 02/06/2023]
|
47
|
Zeyadi M, Almulaiky YQ. A novel peroxidase from Ziziphus jujuba fruit: purification, thermodynamics and biochemical characterization properties. Sci Rep 2020; 10:8007. [PMID: 32409642 PMCID: PMC7224213 DOI: 10.1038/s41598-020-64599-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 04/16/2020] [Indexed: 12/14/2022] Open
Abstract
In this study, peroxidase from Ziziphus jujuba was purified using ion exchange, and gel filtration chromatography resulting in an 18.9-fold enhancement of activity with a recovery of 20%. The molecular weight of Z. jujuba peroxidase was 56 kDa, as estimated by Sephacryl S-200. The purity was evaluated by SDS, which showed a single prominent band. The optimal activity of the peroxidase was achieved at pH 7.5 and 50 °C. Z. jujuba peroxidase showed catalytic efficiency (Kcat/Km) values of 25 and 43 for guaiacol and H2O2, respectively. It was completely inactivated when incubated with β-mercaptoethanol for 15 min. Hg2+, Zn2+, Cd2+, and NaN3 (5 mM) were effective peroxidase inhibitors, whereas Cu2+ and Ca2+ enhanced the peroxidase activity. The activation energy (Ea) for substrate hydrolysis was 43.89 kJ mol−1, while the Z value and temperature quotient (Q10) were found to be 17.3 °C and 2, respectively. The half-life of the peroxidase was between 117.46 and 14.15 min. For denaturation of the peroxidase, the activation energy for irreversible inactivation Ea*(d) was 120.9 kJmol−1. Thermodynamic experiments suggested a non-spontaneous (∆G*d > 0) and endothermic reaction phase. Other thermodynamic parameters of the irreversible inactivation of the purified enzyme, such as ∆H* and ∆S*, were also studied. Based on these results, the purified peroxidase has a potential role in some industrial applications.
Collapse
Affiliation(s)
- Mustafa Zeyadi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, P. O. Box 80200, Jeddah, 21589, Saudi Arabia
| | - Yaaser Q Almulaiky
- University of Jeddah, College of Sciences and Arts at Khulais, Department of Chemistry, Jeddah, Saudi Arabia. .,Chemistry Department, Faculty of Applied Science, Taiz University, Taiz, Yemen.
| |
Collapse
|
48
|
Nguyen LT, Ho WF, Yang KL. Copper-tripeptides (cuzymes) with peroxidase-mimetic activity. RSC Adv 2020; 10:17408-17415. [PMID: 35515638 PMCID: PMC9053452 DOI: 10.1039/d0ra02472d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 04/24/2020] [Indexed: 11/21/2022] Open
Abstract
Peroxidases are enzymes that use hydrogen peroxide to oxidize substrates such as 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ATBS). In this study, we showed that copper-tripeptide complexes ("cuzymes") also exhibited peroxidase-like activities. Different cuzymes could be formed by using various tripeptide ligands, such as GGG, GGH or HGG. However, the peroxidase-like activity of cuzymes depends on the sequence of the tripeptide (Cu-GGG > Cu-HGG > Cu-GGH). When ABTS was used as the substrate, the activity of Cu-GGG was 326 ± 1.5 U mg-1 which was 2.5 times higher than that of horseradish peroxidase (HRP). Copper-tripeptide complexes were also used to degrade trypan blue dye. By using 0.2 mM Cu-GGG and 0.2% H2O2, 200 μM trypan blue could be degraded in 15 min at 50 °C. The degradation reaction followed second-order kinetics; the reaction rate was proportional to both H2O2 concentration and the copper-tripeptide concentration, but it was independent of the trypan blue concentration. Because copper-tripeptides catalyzed the oxidation reactions involving H2O2 effectively, they may have potential applications in biochemical assays and environmental remediation.
Collapse
Affiliation(s)
- Le Truc Nguyen
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585
| | - Wing Fat Ho
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585
| | - Kun-Lin Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore 4 Engineering Drive 4 Singapore 117585
| |
Collapse
|
49
|
Bin-Dahman OA, Saleh TA. Synthesis of carbon nanotubes grafted with PEG and its efficiency for the removal of phenol from industrial wastewater. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.enmm.2020.100286] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
50
|
Almaz Z, Oztekin A, Abul N, Gerni S, Erel D, Kocak SM, Sengül ME, Ozdemir H. A new approach for affinity-based purification of horseradish peroxidase. Biotechnol Appl Biochem 2020; 68:102-113. [PMID: 32060967 DOI: 10.1002/bab.1899] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/13/2020] [Indexed: 01/10/2023]
Abstract
We have developed efficient procedure for isolation of horseradish peroxidase (HRP) using aminobenzohydrazide-based affinity chromatography. Sepharose 4B-bounded aminobenzohydrazides are suitable for long-term use and large-scale purification. In this study, 26 aminobenzohydrazide derivatives were synthesized, characterized and defined as new HRP inhibitors. In addition, detailed inhibition effects of these molecules on HRP enzyme were investigated. Affinity matrix was formed by bonding aminobenzohydrazides, which exhibited inhibitory activity to sepharose-4B-l-tyrosine. HRP was isolated from crude homogenate in single step and purification factors were recorded as 1,151-fold (recovery of 8.5%) with 4-amino 3-bromo benzohydrazide and as 166.16-fold (recovery of 16.67 %) with 3-amino 4-chloro benzohydrazide.
Collapse
Affiliation(s)
- Zuleyha Almaz
- Molecular Biology and Genetics Department, Faculty of Science and Literature, Mus Alparslan University, Mus, Turkey
| | - Aykut Oztekin
- Department of Medical Services and Techniques, Vocational School of Health Services, Agri Ibrahim Cecen University, Agri, Turkey
| | - Nurgul Abul
- Department of Chemistry, Science Faculty, Atatürk University, Erzurum, Turkey
| | - Serpil Gerni
- Department of Chemistry, Science Faculty, Atatürk University, Erzurum, Turkey
| | - Deniz Erel
- Department of Chemistry, Science Faculty, Atatürk University, Erzurum, Turkey
| | - Seyma Mehtap Kocak
- Department of Chemistry, Science Faculty, Atatürk University, Erzurum, Turkey
| | - Mehmet Emin Sengül
- Department of Chemistry, Science Faculty, Atatürk University, Erzurum, Turkey
| | - Hasan Ozdemir
- Department of Chemistry, Science Faculty, Atatürk University, Erzurum, Turkey
| |
Collapse
|