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Kang ZL, Yao PL, Xie JJ, Li YP, Ma HJ. Effects of low-frequency magnetic field on solubility, structural and functional properties of soy 11S globulin. J Sci Food Agric 2024. [PMID: 38415770 DOI: 10.1002/jsfa.13415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 02/18/2024] [Accepted: 02/28/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Soy 11S globulin has high thermal stability, limiting its application in the production of low-temperature gel foods. In this study, the low-frequency magnetic field (LF-MF, 5 mT) treatment (time, 30, 60, 90, and 120 min) was used to improve the solubility, conformation, physicochemical properties, surface characteristics, and gel properties of soy 11S globulin. RESULTS Compared with the native soy 11S globulin, the sulfhydryl content, emulsifying capacity, gel strength, water-holding capacity, and absolute zeta potential values significantly increased (P < 0.05) after LF-MF treatment. The LF-MF treatment induced the unfolding of the protein structure and the fracture of disulfide bonds. The variations in solubility, foaming properties, viscosity, surface hydrophobicity, and rheological properties were closely related to the conformational changes of soy 11S globulin, with the optimum LF-MF modification time being 90 min. CONCLUSION LF-MF treatment is an effective method to improve various functional properties of native soy 11S globulin, and this study provides a reference for the development of plant-based proteins in the food industry. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Zhuang-Li Kang
- School of Tourism and Cuisine, Industrial Engineering Center for Huaiyang Cuisin of Jiangsu Province, Yangzhou University, Yangzhou, China
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
- Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, Ministry of Culture and Tourism, Yangzhou, China
| | - Peng-Lei Yao
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
| | - Jing-Jie Xie
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
| | - Yan-Ping Li
- Shangqiu Academy of Agricultural and Forestry Sciences, Shangqiu, China
| | - Han-Jun Ma
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
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Veselov MM, Efremova MV, Prusov AN, Klyachko NL. Up- and Down-Regulation of Enzyme Activity in Aggregates with Gold-Covered Magnetic Nanoparticles Triggered by Low-Frequency Magnetic Field. Nanomaterials (Basel) 2024; 14:411. [PMID: 38470742 DOI: 10.3390/nano14050411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/11/2024] [Accepted: 02/13/2024] [Indexed: 03/14/2024]
Abstract
The modern global trend toward sustainable processes that meet the requirements of "green chemistry" provides new opportunities for the broad application of highly active, selective, and specific enzymatic reactions. However, the effective application of enzymes in industrial processes requires the development of systems for the remote regulation of their activity triggered by external physical stimuli, one of which is a low-frequency magnetic field (LFMF). Magnetic nanoparticles (MNPs) transform the energy of an LFMF into mechanical forces and deformations applied to enzyme molecules on the surfaces of MNPs. Here, we demonstrate the up- and down-regulation of two biotechnologically important enzymes, yeast alcohol dehydrogenase (YADH) and soybean formate dehydrogenase (FDH), in aggregates with gold-covered magnetic nanoparticles (GCMNPs) triggered by an LFMF. Two types of aggregates, "dimeric" (with the enzyme attached to several GCMNPs simultaneously), with YADH or FDH, and "monomeric" (the enzyme attached to only one GCMNP), with FDH, were synthesized. Depending on the aggregate type ("dimeric" or "monomeric"), LFMF treatment led to a decrease (down-regulation) or an increase (up-regulation) in enzyme activity. For "dimeric" aggregates, we observed 67 ± 9% and 47 ± 7% decreases in enzyme activity under LFMF exposure for YADH and FDH, respectively. Moreover, in the case of YADH, varying the enzyme or the cross-linking agent concentration led to different magnitudes of the LFMF effect, which was more significant at lower enzyme and higher cross-linking agent concentrations. Different responses to LFMF exposure depending on cofactor presence were also demonstrated. This effect might result from a varying cofactor binding efficiency to enzymes. For the "monomeric" aggregates with FDH, the LFMF treatment caused a significant increase in enzyme activity; the magnitude of this effect depended on the cofactor type: we observed up to 40% enzyme up-regulation in the case of NADP+, while almost no effect was observed in the case of NAD+.
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Affiliation(s)
- Maxim M Veselov
- School of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Maria V Efremova
- School of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
- Department of Applied Physics and Science Education, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Andrey N Prusov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow 119992, Russia
| | - Natalia L Klyachko
- School of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
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Zhang J, Chen Y, Wang S, Liu Y, Li L, Gao M. Role of histone H3K4 methyltransferase in regulating Monascus pigments production by red light-coupled magnetic field. Photochem Photobiol 2024; 100:75-86. [PMID: 37032633 DOI: 10.1111/php.13809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 04/05/2023] [Accepted: 04/05/2023] [Indexed: 04/11/2023]
Abstract
Light, magnetic field, and methylation affected the growth and secondary metabolism of fungi. The regulation effect of the three factors on the growth and Monascus pigments (MPs) synthesis of Monascus purpureus was investigated in this study. 5-azacytidine (5-AzaC), DNA methylation inhibitor, was used to treat M. purpureus (wild-type, WT). Twenty micromolar 5-AzaC significantly promoted the growth, development, and MPs yield. Moreover, 250 lux red light and red light coupled magnetic field (RLCMF) significantly promoted the biomass. For WT, red light, and RLCMF significantly promoted MPs yield. But compared with red light treatment, only 0.2 mT RLCMF promoted the alcohol-soluble MPs yield. For histone H3K4 methyltransferase complex subunit Ash2 gene knockout strain (ΔAsh2), only 0.2 mT RLCMF significantly promoted water-soluble MPs yield. Yet red light, 1.0 and 0.2 mT RLCMF significantly promoted alcohol-soluble MPs yield. This indicated that methylation affected the MPs biosynthesis. Red light and weaker MF had a synergistic effect on the growth and MPs synthesis of ΔAsh2. This result was further confirmed by the expression of related genes. Therefore, histone H3K4 methyltransferase was involved in the regulation of the growth, development, and MPs synthesis of M. purpureus by the RLCMF.
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Affiliation(s)
- Jialan Zhang
- College of Animal Science, Yangtze University, Jingzhou, China
| | - Yufeng Chen
- College of Life Science, Yangtze University, Jingzhou, China
| | - Shaojin Wang
- College of Life Science, Yangtze University, Jingzhou, China
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, China
| | - Yingbao Liu
- College of Life Science, Yangtze University, Jingzhou, China
| | - Li Li
- College of Life Science, Yangtze University, Jingzhou, China
- Institute of Food Science and Technology, Yangtze University, Jingzhou, China
| | - Mengxiang Gao
- College of Life Science, Yangtze University, Jingzhou, China
- Institute of Food Science and Technology, Yangtze University, Jingzhou, China
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Voinova VV, Zhuikov VA, Zhuikova YV, Sorokina AA, Makhina TK, Bonartseva GA, Parshina EY, Hossain MA, Shaitan KV, Pryadko AS, Chernozem RV, Mukhortova YR, Shlapakova LE, Surmenev RA, Surmeneva MA, Bonartsev AP. Adhesion of Escherichia coli and Lactobacillus fermentum to Films and Electrospun Fibrous Scaffolds from Composites of Poly(3-hydroxybutyrate) with Magnetic Nanoparticles in a Low-Frequency Magnetic Field. Int J Mol Sci 2023; 25:208. [PMID: 38203380 PMCID: PMC10778586 DOI: 10.3390/ijms25010208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/06/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
The ability of materials to adhere bacteria on their surface is one of the most important aspects of their development and application in bioengineering. In this work, the effect of the properties of films and electrospun scaffolds made of composite materials based on biosynthetic poly(3-hydroxybutyrate) (PHB) with the addition of magnetite nanoparticles (MNP) and their complex with graphene oxide (MNP/GO) on the adhesion of E. coli and L. fermentum under the influence of a low-frequency magnetic field and without it was investigated. The physicochemical properties (crystallinity; surface hydrophilicity) of the materials were investigated by X-ray structural analysis, differential scanning calorimetry and "drop deposition" methods, and their surface topography was studied by scanning electron and atomic force microscopy. Crystal violet staining made it possible to reveal differences in the surface charge value and to study the adhesion of bacteria to it. It was shown that the differences in physicochemical properties of materials and the manifestation of magnetoactive properties of materials have a multidirectional effect on the adhesion of model microorganisms. Compared to pure PHB, the adhesion of E. coli to PHB-MNP/GO, and for L. fermentum to both composite materials, was higher. In the magnetic field, the adhesion of E. coli increased markedly compared to PHB-MNP/GO, whereas the effect on the adhesion of L. fermentum was reversed and was only evident in samples with PHB-MNP. Thus, the resultant factors enhancing and impairing the substrate binding of Gram-negative E. coli and Gram-positive L. fermentum turned out to be multidirectional, as they probably have different sensitivity to them. The results obtained will allow for the development of materials with externally controlled adhesion of bacteria to them for biotechnology and medicine.
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Affiliation(s)
- Vera V. Voinova
- Faculty of Biology, Lomonosov Moscow State University, Moscow 119234, Russia; (V.V.V.); (A.A.S.); (E.Y.P.); (M.A.H.); (K.V.S.)
| | - Vsevolod A. Zhuikov
- The Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow 119071, Russia; (V.A.Z.); (Y.V.Z.); (T.K.M.); (G.A.B.)
| | - Yulia V. Zhuikova
- The Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow 119071, Russia; (V.A.Z.); (Y.V.Z.); (T.K.M.); (G.A.B.)
| | - Anastasia A. Sorokina
- Faculty of Biology, Lomonosov Moscow State University, Moscow 119234, Russia; (V.V.V.); (A.A.S.); (E.Y.P.); (M.A.H.); (K.V.S.)
| | - Tatiana K. Makhina
- The Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow 119071, Russia; (V.A.Z.); (Y.V.Z.); (T.K.M.); (G.A.B.)
| | - Garina A. Bonartseva
- The Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences, Moscow 119071, Russia; (V.A.Z.); (Y.V.Z.); (T.K.M.); (G.A.B.)
| | - Evgeniia Yu. Parshina
- Faculty of Biology, Lomonosov Moscow State University, Moscow 119234, Russia; (V.V.V.); (A.A.S.); (E.Y.P.); (M.A.H.); (K.V.S.)
| | - Muhammad Asif Hossain
- Faculty of Biology, Lomonosov Moscow State University, Moscow 119234, Russia; (V.V.V.); (A.A.S.); (E.Y.P.); (M.A.H.); (K.V.S.)
| | - Konstantin V. Shaitan
- Faculty of Biology, Lomonosov Moscow State University, Moscow 119234, Russia; (V.V.V.); (A.A.S.); (E.Y.P.); (M.A.H.); (K.V.S.)
| | - Artyom S. Pryadko
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia; (A.S.P.); (Y.R.M.); (L.E.S.); (R.A.S.); (M.A.S.)
| | - Roman V. Chernozem
- International Research and Development Center “Piezo- and Magnetoelectric Materials”, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia;
| | - Yulia R. Mukhortova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia; (A.S.P.); (Y.R.M.); (L.E.S.); (R.A.S.); (M.A.S.)
- International Research and Development Center “Piezo- and Magnetoelectric Materials”, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia;
| | - Lada E. Shlapakova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia; (A.S.P.); (Y.R.M.); (L.E.S.); (R.A.S.); (M.A.S.)
| | - Roman A. Surmenev
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia; (A.S.P.); (Y.R.M.); (L.E.S.); (R.A.S.); (M.A.S.)
- International Research and Development Center “Piezo- and Magnetoelectric Materials”, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia;
| | - Maria A. Surmeneva
- Physical Materials Science and Composite Materials Center, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia; (A.S.P.); (Y.R.M.); (L.E.S.); (R.A.S.); (M.A.S.)
- International Research and Development Center “Piezo- and Magnetoelectric Materials”, Research School of Chemistry and Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia;
| | - Anton P. Bonartsev
- Faculty of Biology, Lomonosov Moscow State University, Moscow 119234, Russia; (V.V.V.); (A.A.S.); (E.Y.P.); (M.A.H.); (K.V.S.)
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Tekutskaya E, Il'chenko G, Dorohova A, Malyshko V, Baryshev M, Dzhimak S. 8-Oxoguanine-DNA-Glycosylase Gene Polymorphism and the Effects of an Alternating Magnetic Field on the Sensitivity of Peripheral Blood. FRONT BIOSCI-LANDMRK 2023; 28:252. [PMID: 37919083 DOI: 10.31083/j.fbl2810252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/24/2023] [Accepted: 09/06/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND The production of reactive oxygen species (ROS) in animals and cells often results from exposure to low-intensity factors, including magnetic fields. Much of the discussion about the initiation of oxidative stress and the role of ROS and radicals in the effects of magnetic fields has centered on radical-induced DNA damage. METHODS The DNA concentration in the final solution was determined spectrophotometrically. Typing of the polymorphic variant rs1052133 of the 8-oxoguanin DNA glycosylase (hOGG1) gene was performed by polymerase chain reaction. An enzyme immunoassay was performed to determine the level of 8-oxyguanine in DNA. To process samples exposed to an alternating magnetic field, the authors developed a device for the automated study of biological fluids in an alternating magnetic field. The content of hydrogen peroxide in aqueous solutions of DNA was determined using the spectrophotometric method. RESULTS It was experimentally determined that an increase in the concentration of hydrogen peroxide in an aqueous medium by 3-5 times under the action of a low-frequency magnetic field reduces the resistance of the genomic material to oxidative modification and the accumulation of 8-oxyguanine in DNA. A model is proposed for the mechanism of action of a low-frequency magnetic field on aqueous solutions of nucleic acids and proteins, which satisfies the model of a chemical oscillator for the transformations of reactive oxygen species in an aqueous medium. The model illustrates the oscillating nature of the processes occurring in an aqueous solution of DNA and makes it possible to predict changes in the concentration of hydrogen peroxide in an aqueous solution of biopolymers, depending on the frequency of the acting low-intensity magnetic field. CONCLUSIONS The key element in the mechanisms involved in the effects of low-intensity magnetic field on living systems is the occurrence of ROS generation in the aquatic environment of chemical oscillators, in which the competition of physical and chemical processes (electron transfers, reactions of decay and addition of radicals, spin magnetically induced conversion, synthesis, and decay of the longest-lived form-hydrogen peroxide) is controlled by a magnetic field.
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Affiliation(s)
- Elena Tekutskaya
- Department of Radiophysics and Nanotechnology, Kuban State University, 350040 Krasnodar, Russia
| | - Gennady Il'chenko
- Department of Radiophysics and Nanotechnology, Kuban State University, 350040 Krasnodar, Russia
| | - Anna Dorohova
- Laboratory of Problems of Stable Isotope Spreading in Living Systems, Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia
| | - Vadim Malyshko
- Laboratory of Problems of Stable Isotope Spreading in Living Systems, Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia
- Department of Fundamental and Clinical Biochemistry, Kuban State Medical University, 350063 Krasnodar, Russia
| | - Mikhail Baryshev
- Administrative department, All-Russian Research Institute of Phytopathology, 143050 Moscow region, Russia
| | - Stepan Dzhimak
- Department of Radiophysics and Nanotechnology, Kuban State University, 350040 Krasnodar, Russia
- Laboratory of Problems of Stable Isotope Spreading in Living Systems, Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia
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Krylov VV, Papchenkova GA, Golovanova IL. Influence of Calcium Resonance-Tuned Low-Frequency Magnetic Fields on Daphnia magna. Int J Mol Sci 2022; 23:ijms232415727. [PMID: 36555367 PMCID: PMC9779586 DOI: 10.3390/ijms232415727] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
A biophysical model for calculating the effective parameters of low-frequency magnetic fields was developed by Lednev based on summarized empirical data. According to this model, calcium ions as enzyme cofactors can be the primary target of low-frequency magnetic fields with different parameters tuned to calcium resonance. However, the effects of calcium-resonant combinations of static and alternating magnetic fields that correspond to Lednev's model and differ by order in frequency and intensity were not studied. It does not allow for confidently discussing the primary targets of low-frequency magnetic fields in terms of the magnetic influence on ions-enzyme cofactors. To clarify this issue, we examined the response of freshwater crustaceans Daphnia magna to the impact of combinations of magnetic fields targeted to calcium ions in enzymes according to Lednev's model that differ in order of magnitude. Life-history traits and biochemical parameters were evaluated. Exposure of daphnids to both combinations of magnetic fields led to a long-term delay of the first brood release, an increase in the brood size, a decrease in the number of broods, and the period between broods. The amylolytic activity, proteolytic activity, and sucrase activity significantly decreased in whole-body homogenates of crustaceans in response to both combinations of magnetic fields. The similarity in the sets of revealed effects assumes that different magnetic fields tuned to calcium ions in biomolecules can affect the same primary molecular target. The results suggest that the low-frequency magnetic fields with parameters corresponding to Lednev's model of interaction between biological molecules and ions can remain effective with a significant decrease in the static magnetic background.
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