Pub Date : 2023-01-01DOI: 10.56304/s0234275823020035
Е. А. Гузов, М. А. Цирулева, А. В. Исеркапов, А. П. Тюкова, В. Н. Казин, В. М. Колышкин, В. Г. Игнатьев
{"title":"Влияние глюкозамина и ионов меди на формирование профиля гликозилирования моноклональных антител в клетках CHO","authors":"Е. А. Гузов, М. А. Цирулева, А. В. Исеркапов, А. П. Тюкова, В. Н. Казин, В. М. Колышкин, В. Г. Игнатьев","doi":"10.56304/s0234275823020035","DOIUrl":"https://doi.org/10.56304/s0234275823020035","url":null,"abstract":"","PeriodicalId":8850,"journal":{"name":"Biotekhnologiya","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135749265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.21519/0234-2758-2021-37-4-96-105
E. Kozhevnikova, A. Shnyreva, A. Barkov, Y. Topolyuk, I. Grishina, L. Magadova, D. Voronin
Guar gum is a polymer that is widely used as a gelling agent for technological liquids in the petroleum industry. In this paper, we have studied the potential for the environmentally friendly biodegradation of guar gum by enzymes of basidiomycetes for efficient disposal of oil industry wastes. For the first time, we compared the enzymatic activity towards guar gum of seven basidiomycete strains, namely Trametes hirsuta MT-24.24, Lactarius necator, Trametes hirsuta MT-17.24, Schizophyllum commune MT-33.01, Fomes fomentarius MT-4.05, Fomitopsis pinicola MT-5.21, and Trametes versicolor It-1. This comparison showed that the preparation based on Fomitopsis pinicola MT-5.21 fungal mycelium at a concentration of 0.05% provides the most efficient decomposition of a frac fluid containing guar gum. By varying the enzyme concentration in this fluid it is possible to control the decrease in its viscosity over time. The developed enzyme preparation is an efficient and environmentally friendly guar gum biodegradant and can be used to process waste fracturing fluids based on polysaccharides in order to reuse water resources. Key words: biodegradants, basidiomycetes, guar gum, enzymatic hydrolysis, enzyme destructors, fracturing fluids. Funding - The work was financially supported by the National University of Oil and Gas "Gubkin University" (Internal grant no. 120720 "Development of New Biotechnological Methods and Materials for Environmental Protection and Biomedicine").
{"title":"Biodegradation of Guar Gum in Hydraulic Fracturing Fluid under the Action of Enzyme Preparations of Basidiomycetes","authors":"E. Kozhevnikova, A. Shnyreva, A. Barkov, Y. Topolyuk, I. Grishina, L. Magadova, D. Voronin","doi":"10.21519/0234-2758-2021-37-4-96-105","DOIUrl":"https://doi.org/10.21519/0234-2758-2021-37-4-96-105","url":null,"abstract":"Guar gum is a polymer that is widely used as a gelling agent for technological liquids in the petroleum industry. In this paper, we have studied the potential for the environmentally friendly biodegradation of guar gum by enzymes of basidiomycetes for efficient disposal of oil industry wastes. For the first time, we compared the enzymatic activity towards guar gum of seven basidiomycete strains, namely Trametes hirsuta MT-24.24, Lactarius necator, Trametes hirsuta MT-17.24, Schizophyllum commune MT-33.01, Fomes fomentarius MT-4.05, Fomitopsis pinicola MT-5.21, and Trametes versicolor It-1. This comparison showed that the preparation based on Fomitopsis pinicola MT-5.21 fungal mycelium at a concentration of 0.05% provides the most efficient decomposition of a frac fluid containing guar gum. By varying the enzyme concentration in this fluid it is possible to control the decrease in its viscosity over time. The developed enzyme preparation is an efficient and environmentally friendly guar gum biodegradant and can be used to process waste fracturing fluids based on polysaccharides in order to reuse water resources.\u0000\u0000Key words: biodegradants, basidiomycetes, guar gum, enzymatic hydrolysis, enzyme destructors, fracturing fluids.\u0000\u0000Funding - The work was financially supported by the National University of Oil and Gas \"Gubkin University\" (Internal grant no. 120720 \"Development of New Biotechnological Methods and Materials for Environmental Protection and Biomedicine\").","PeriodicalId":8850,"journal":{"name":"Biotekhnologiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48664299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.21519/0234-2758-2021-37-4-51-59
N. L. Eremeev, N. G. Balabushevich, D. Volodkin, N. Klyachko
A new technique has been developed for the synthesis of cross-linked catalase aggregates by treatment of the enzyme incorporated into the pores of vaterite microspheres with glutaraldehyde and subsequent dissolving of the inorganic matrix. The resulting aggregates have a spherical shape, a narrow particle size distribution and a high specific activity of the enzyme. The number and enzymatic activity of the cross-linked aggregates strongly depends on the rate of the matrix dissolution: mild dissolution conditions made it possible to increase the number of formed protein particles, the residual specific catalase activity of which is only 2 times less than that of the native enzyme. The storage stability of the cross-linked aggregates is comparable to that of the native enzyme of the same concentration. Key words: vaterite, glutaraldehyde, immobilized preparations, intermolecular cross-linking, co-precipitation, CLEAs. Acknowledgment - The authors are grateful to the staff of the M.V. Lomonosov Moscow State University A.N. Prusov for help in obtaining TEM images and A.A. Tatarintseva for assistance in obtaining SEM images. Funding - This work was supported in part by Lomonosov Moscow State University (Registration Theme АААА-А21-121011290089-4). The authors also acknowledge Lomonosov Moscow State University Development Program PNR 5.13.
{"title":"Preparation of Catalase Cross-Linked Aggregates Based on Vaterite Matrix","authors":"N. L. Eremeev, N. G. Balabushevich, D. Volodkin, N. Klyachko","doi":"10.21519/0234-2758-2021-37-4-51-59","DOIUrl":"https://doi.org/10.21519/0234-2758-2021-37-4-51-59","url":null,"abstract":"A new technique has been developed for the synthesis of cross-linked catalase aggregates by treatment of the enzyme incorporated into the pores of vaterite microspheres with glutaraldehyde and subsequent dissolving of the inorganic matrix. The resulting aggregates have a spherical shape, a narrow particle size distribution and a high specific activity of the enzyme. The number and enzymatic activity of the cross-linked aggregates strongly depends on the rate of the matrix dissolution: mild dissolution conditions made it possible to increase the number of formed protein particles, the residual specific catalase activity of which is only 2 times less than that of the native enzyme. The storage stability of the cross-linked aggregates is comparable to that of the native enzyme of the same concentration.\u0000\u0000Key words: vaterite, glutaraldehyde, immobilized preparations, intermolecular cross-linking, co-precipitation, CLEAs.\u0000\u0000Acknowledgment - The authors are grateful to the staff of the M.V. Lomonosov Moscow State University A.N. Prusov for help in obtaining TEM images and A.A. Tatarintseva for assistance in obtaining SEM images.\u0000\u0000Funding - This work was supported in part by Lomonosov Moscow State University (Registration Theme АААА-А21-121011290089-4). The authors also acknowledge Lomonosov Moscow State University Development Program PNR 5.13.","PeriodicalId":8850,"journal":{"name":"Biotekhnologiya","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44032576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.21519/0234-2758-2021-37-2-65-75
A. S. Kartseva, A. K. Ryabko, M. A. Mar’in, Y. Romanenko, O. V. Kalmantaeva, A. E. Khlyntseva, I. Shemyakin, I. Dyatlov, V. V. Firstova
Monoclonal antibodies are an established treatment for many diseases, including cancer, toxic conditions and infectious diseases. The goal of this work was to optimize the conditions for obtaining hybridomas secreting human monoclonal IgG antibodies. A new protocol was developed for efficient electrofusion of human B lymphocytes with partner cells. Electrofusion parameters were optimized, and the preferred partner cell line and the ratio of cells involved in the fusion were selected. Two myeloma cell lines, K6H6/B5 and SHM-D33, were tested in detail, and the highest fusion efficiency was observed for K6H6/B5. Three hybridomas that secreted fully human monoclonal IgG antibodies were obtained using an optimized protocol electrofusion; the secretion was observed within a month, which indicates the stability of the clones and the absence of chromosome segregation. hybridoma, human monoclonal antibodies, PEG, electrofusion The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation (Agreement no. 075-15-2019-1671, October 31, 2019).
{"title":"Optimization of Electrofusion Parameters for Producing Hybridomas Synthesizing Human Monoclonal Antibodies","authors":"A. S. Kartseva, A. K. Ryabko, M. A. Mar’in, Y. Romanenko, O. V. Kalmantaeva, A. E. Khlyntseva, I. Shemyakin, I. Dyatlov, V. V. Firstova","doi":"10.21519/0234-2758-2021-37-2-65-75","DOIUrl":"https://doi.org/10.21519/0234-2758-2021-37-2-65-75","url":null,"abstract":"Monoclonal antibodies are an established treatment for many diseases, including cancer, toxic conditions and infectious diseases. The goal of this work was to optimize the conditions for obtaining hybridomas secreting human monoclonal IgG antibodies. A new protocol was developed for efficient electrofusion of human B lymphocytes with partner cells. Electrofusion parameters were optimized, and the preferred partner cell line and the ratio of cells involved in the fusion were selected. Two myeloma cell lines, K6H6/B5 and SHM-D33, were tested in detail, and the highest fusion efficiency was observed for K6H6/B5. Three hybridomas that secreted fully human monoclonal IgG antibodies were obtained using an optimized protocol electrofusion; the secretion was observed within a month, which indicates the stability of the clones and the absence of chromosome segregation.\u0000\u0000hybridoma, human monoclonal antibodies, PEG, electrofusion\u0000\u0000The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation (Agreement no. 075-15-2019-1671, October 31, 2019).","PeriodicalId":8850,"journal":{"name":"Biotekhnologiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47200323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.21519/0234-2758-2021-37-6-25-33
V. Matys, V. Nemashkalov, A. Rozhkova, I. Shashkov, A. D. Satrutdinov, E. G. Kondratyeva, A. Sinitsyn
A new recombinant Aspergillus niger tannase (tannin acyl hydrolase) produced by the Penicillium verruculosum fungus has been studied. A strain with a high level of extracellular tannase (TAN2) secretion (80% of the total extracellular protein) was obtained by cloning the tan2 gene (PDB Acc. No: MT828303) into the recipient strain. The tannase enzyme preparation degraded tannins in black tea extracts. TAN2 was isolated in homogeneous form using chromatographic methods; the enzyme had a high activity against gallotannin (53 U/mg) and less activity against propyl gallate (4.7 U/mg). Homogeneous TAN2 showed temperature and pH optima of 45 °C and 3.5, respectively. At a temperature of 50 °C, TAN2 retained above 80% activity for 3 h; at 60 °C, it retained about 75% of its activity for 90 min; at 70 °C, the enzyme was completely inactivated within 10 min. Tannase was characterized by a high tolerance to NaCl, the activity against gallotannin exceeded 50% of the initial value in solutions with a salt concentration of up to 5 M. The tannase activity was stimulated by Ca2+, Mg2+, Zn2+, Mn2+, Cu2+, Cd2+, Pb2+ by 3--64% and inhibited by 4-65% in the presence of Co2+, Fe3+ and Fe2+ ions. tannase, tannins, Aspergillus niger, Penicillium verruculosum This work was supported by the Ministry of Science and Higher Education of the Russian Federation.
{"title":"Cloning, Isolation, and Properties of a New Recombinant Tannase from the Aspergillus niger Fungus","authors":"V. Matys, V. Nemashkalov, A. Rozhkova, I. Shashkov, A. D. Satrutdinov, E. G. Kondratyeva, A. Sinitsyn","doi":"10.21519/0234-2758-2021-37-6-25-33","DOIUrl":"https://doi.org/10.21519/0234-2758-2021-37-6-25-33","url":null,"abstract":"A new recombinant Aspergillus niger tannase (tannin acyl hydrolase) produced by the Penicillium verruculosum fungus has been studied. A strain with a high level of extracellular tannase (TAN2) secretion (80% of the total extracellular protein) was obtained by cloning the tan2 gene (PDB Acc. No: MT828303) into the recipient strain. The tannase enzyme preparation degraded tannins in black tea extracts. TAN2 was isolated in homogeneous form using chromatographic methods; the enzyme had a high activity against gallotannin (53 U/mg) and less activity against propyl gallate (4.7 U/mg). Homogeneous TAN2 showed temperature and pH optima of 45 °C and 3.5, respectively. At a temperature of 50 °C, TAN2 retained above 80% activity for 3 h; at 60 °C, it retained about 75% of its activity for 90 min; at 70 °C, the enzyme was completely inactivated within 10 min. Tannase was characterized by a high tolerance to NaCl, the activity against gallotannin exceeded 50% of the initial value in solutions with a salt concentration of up to 5 M. The tannase activity was stimulated by Ca2+, Mg2+, Zn2+, Mn2+, Cu2+, Cd2+, Pb2+ by 3--64% and inhibited by 4-65% in the presence of Co2+, Fe3+ and Fe2+ ions.\u0000\u0000tannase, tannins, Aspergillus niger, Penicillium verruculosum\u0000\u0000This work was supported by the Ministry of Science and Higher Education of the Russian Federation.","PeriodicalId":8850,"journal":{"name":"Biotekhnologiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45577132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-01DOI: 10.21519/0234-2758-2021-37-3-65-74
G. Artemyev, N. Popova, A. V. Safonov
Microbial activity in engineering clay materials of safety barriers in conditions, simulating a deep underground disposal point of radioactive waste Yeniseiskii (Zheleznogorsk, Krasnoyarsk Kray) has been studied. It was established that clays with a high content of sulfur, iron and organic carbon, as well as those containing mineral phases (calcites, spars, and others) can be a source of microbial gas release, including methane, and also of products (for instance, hydrogen sulfide), which may be corrosive to steals in contact with clay materials. The microbial processes in clays rich in biogenic elements and minerals lead to the dissolution of aluminosilicate structural lattices. To prevent the microbial impact, various biocidal additives are used: Amanat, Rancid, boric acid and polyhexamethylguanidine (PHMG). The effect of these preparations at various temperatures was analyzed. It was found that PHMG was the most effective among the tested preparations over a wide temperature range. radioactive waste, microbial activity biological destruction, biocides
{"title":"Microbial Processes in Engineering Clay Materials and Biocidal Additives to Prevent Them","authors":"G. Artemyev, N. Popova, A. V. Safonov","doi":"10.21519/0234-2758-2021-37-3-65-74","DOIUrl":"https://doi.org/10.21519/0234-2758-2021-37-3-65-74","url":null,"abstract":"Microbial activity in engineering clay materials of safety barriers in conditions, simulating a deep underground disposal point of radioactive waste Yeniseiskii (Zheleznogorsk, Krasnoyarsk Kray) has been studied. It was established that clays with a high content of sulfur, iron and organic carbon, as well as those containing mineral phases (calcites, spars, and others) can be a source of microbial gas release, including methane, and also of products (for instance, hydrogen sulfide), which may be corrosive to steals in contact with clay materials. The microbial processes in clays rich in biogenic elements and minerals lead to the dissolution of aluminosilicate structural lattices. To prevent the microbial impact, various biocidal additives are used: Amanat, Rancid, boric acid and polyhexamethylguanidine (PHMG). The effect of these preparations at various temperatures was analyzed. It was found that PHMG was the most effective among the tested preparations over a wide temperature range.\u0000\u0000radioactive waste, microbial activity biological destruction, biocides","PeriodicalId":8850,"journal":{"name":"Biotekhnologiya","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46560420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.56304/s0234275822010045
А. Н. Иванкин
{"title":"Биотехнологическая трансформация костной ткани животного происхождения в продукты с высокой биологической ценностью","authors":"А. Н. Иванкин","doi":"10.56304/s0234275822010045","DOIUrl":"https://doi.org/10.56304/s0234275822010045","url":null,"abstract":"","PeriodicalId":8850,"journal":{"name":"Biotekhnologiya","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70854512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.56304/s0234275822010070
Л. Г. Стоянова, С. Д. Дбар, Ирина Сергеевна Полянская
{"title":"Метабиотические свойства штаммов\u0000 \u0000 Lactobacillus acidophilus\u0000 \u0000 , входящих в комплексные закваски для производства пробиотических молочных продуктов","authors":"Л. Г. Стоянова, С. Д. Дбар, Ирина Сергеевна Полянская","doi":"10.56304/s0234275822010070","DOIUrl":"https://doi.org/10.56304/s0234275822010070","url":null,"abstract":"","PeriodicalId":8850,"journal":{"name":"Biotekhnologiya","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70854603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}