Structural-Group Composition and Biological Activity of Humic and Lipid Substances of Brown Coals
The samples of brown coal, bitumen and humic acids (HA) extracted from them are characterized by means of elemental and proximate analyses, FTIR, 13С NMR (CPMAS) spectroscopy and gas chromatography-mass spectrometry. The presence of biologically active substances is detected in the extracted bitume...
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| Format: | Article |
| Language: | English |
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al-Farabi Kazakh National University
2022-10-01
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| Series: | Eurasian Chemico-Technological Journal |
| Subjects: | |
| Online Access: | https://ect-journal.kz/index.php/ectj/article/view/1429 |
| _version_ | 1797988937795371008 |
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| author | S.I. Zherebtsov K.M. Shpakodraev K.S. Votolin N.V. Malyshenko Z.R. Ismagilov |
| author_facet | S.I. Zherebtsov K.M. Shpakodraev K.S. Votolin N.V. Malyshenko Z.R. Ismagilov |
| author_sort | S.I. Zherebtsov |
| collection | DOAJ |
| description |
The samples of brown coal, bitumen and humic acids (HA) extracted from them are characterized by means of elemental and proximate analyses, FTIR, 13С NMR (CPMAS) spectroscopy and gas chromatography-mass spectrometry. The presence of biologically active substances is detected in the extracted bitumen samples. The biological activity of humic preparations in the form of sodium humates and the saponifiable component of the extracted bituminous resin is investigated depending on the structural-group parameters: aromaticity degree (far), the hydrophilic-hydrophobic parameter (fhh), and the parameter depicting the relationship between the aromatic and aliphatic fragments of the organic mass of HA (far/al). It is shown that O-alkylation of the organic mass of coal, followed by debituminizing, changes the structural-group composition of humic acids, causes an increase in the degree of aromaticity and leads to enhancement of the biological activity of HA.
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| first_indexed | 2024-04-11T08:11:00Z |
| format | Article |
| id | doaj.art-0b7258f798af4b67a4f12ef6c7ab156b |
| institution | Directory Open Access Journal |
| issn | 1562-3920 2522-4867 |
| language | English |
| last_indexed | 2024-04-11T08:11:00Z |
| publishDate | 2022-10-01 |
| publisher | al-Farabi Kazakh National University |
| record_format | Article |
| series | Eurasian Chemico-Technological Journal |
| spelling | doaj.art-0b7258f798af4b67a4f12ef6c7ab156b2022-12-22T04:35:19Zengal-Farabi Kazakh National UniversityEurasian Chemico-Technological Journal1562-39202522-48672022-10-0124310.18321/ectj1429Structural-Group Composition and Biological Activity of Humic and Lipid Substances of Brown CoalsS.I. Zherebtsov0K.M. Shpakodraev1K.S. Votolin2N.V. Malyshenko3Z.R. Ismagilov4Institute of Coal Chemistry and Chemical Materials Science FRC CCC SB RAS, 18, Sovetskiy ave., Kemerovo, RussiaInstitute of Coal Chemistry and Chemical Materials Science FRC CCC SB RAS, 18, Sovetskiy ave., Kemerovo, RussiaInstitute of Coal Chemistry and Chemical Materials Science FRC CCC SB RAS, 18, Sovetskiy ave., Kemerovo, RussiaInstitute of Coal Chemistry and Chemical Materials Science FRC CCC SB RAS, 18, Sovetskiy ave., Kemerovo, RussiaInstitute of Coal Chemistry and Chemical Materials Science FRC CCC SB RAS, 18, Sovetskiy ave., Kemerovo, Russia The samples of brown coal, bitumen and humic acids (HA) extracted from them are characterized by means of elemental and proximate analyses, FTIR, 13С NMR (CPMAS) spectroscopy and gas chromatography-mass spectrometry. The presence of biologically active substances is detected in the extracted bitumen samples. The biological activity of humic preparations in the form of sodium humates and the saponifiable component of the extracted bituminous resin is investigated depending on the structural-group parameters: aromaticity degree (far), the hydrophilic-hydrophobic parameter (fhh), and the parameter depicting the relationship between the aromatic and aliphatic fragments of the organic mass of HA (far/al). It is shown that O-alkylation of the organic mass of coal, followed by debituminizing, changes the structural-group composition of humic acids, causes an increase in the degree of aromaticity and leads to enhancement of the biological activity of HA. https://ect-journal.kz/index.php/ectj/article/view/1429Brown coalHumic acidsBitumenBiological activity |
| spellingShingle | S.I. Zherebtsov K.M. Shpakodraev K.S. Votolin N.V. Malyshenko Z.R. Ismagilov Structural-Group Composition and Biological Activity of Humic and Lipid Substances of Brown Coals Eurasian Chemico-Technological Journal Brown coal Humic acids Bitumen Biological activity |
| title | Structural-Group Composition and Biological Activity of Humic and Lipid Substances of Brown Coals |
| title_full | Structural-Group Composition and Biological Activity of Humic and Lipid Substances of Brown Coals |
| title_fullStr | Structural-Group Composition and Biological Activity of Humic and Lipid Substances of Brown Coals |
| title_full_unstemmed | Structural-Group Composition and Biological Activity of Humic and Lipid Substances of Brown Coals |
| title_short | Structural-Group Composition and Biological Activity of Humic and Lipid Substances of Brown Coals |
| title_sort | structural group composition and biological activity of humic and lipid substances of brown coals |
| topic | Brown coal Humic acids Bitumen Biological activity |
| url | https://ect-journal.kz/index.php/ectj/article/view/1429 |
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