Polymers Sorption Properties towards Photosynthetic Pigments and Fungicides
In the present work, extraction with a solvent (cold acetone) was used to extract the assimilation pigments from spinach leaves. Then, the sorption capacity of selected plastics granules (polyvinyl chloride—PVC, polypropylene—PP, polyethylene—PE of different densities) was tested for the selective i...
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MDPI AG
2021-04-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/8/1874 |
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| author | Małgorzata Tatarczak-Michalewska Jolanta Flieger Justyna Kawka Wojciech Płaziński Tomasz Klepka Piotr Flieger Monika Szymańska-Chargot |
| author_facet | Małgorzata Tatarczak-Michalewska Jolanta Flieger Justyna Kawka Wojciech Płaziński Tomasz Klepka Piotr Flieger Monika Szymańska-Chargot |
| author_sort | Małgorzata Tatarczak-Michalewska |
| collection | DOAJ |
| description | In the present work, extraction with a solvent (cold acetone) was used to extract the assimilation pigments from spinach leaves. Then, the sorption capacity of selected plastics granules (polyvinyl chloride—PVC, polypropylene—PP, polyethylene—PE of different densities) was tested for the selective isolation of chlorophylls. Quantification of chlorophylls by HPLC (Zorbax Eclipse XDB-C18 column, the mobile phase: Acetonitrile/methanol/ethyl acetate 6:2:2, <i>v</i>/<i>v</i>) was based on chlorophyll-a content as the most common chlorophyll. The performed experiments prove that PVC containing electronegative chlorine exhibits favorable interactions toward chlorophyll by creating stable molecular complexes. The Fourier Transform Raman Spectroscopy (FT-Raman) and the molecular modeling were used to elucidate the structure of the created complexes. The optimal extraction requirements, the mass of sorbent, water-acetone ratio, time, and the composition of the elution solvent were all established. The optimized extraction conditions ensured a maximum extraction yield of chlorophylls of 98%. The chlorophyll-rich sorbent was re-extracted by acetone, leading to the recovery of 91% of chlorophylls in one step, adding the possibility of its re-use. The proposed effective and ecological method of obtaining the green dye from plants is cheap, simple, and efficient, avoiding organic solvents, utilizing the most widely used synthetic polymers in the world, being products difficult for utilization. The possibility to remove chosen fungicides cyprodinil, chlorothalonil, and thiabendazone from plant extract by PVC was also examined. The described method proposes a new application of synthetic polymers, which meets the criteria of sustainable green chemistry, simultaneously reaching the growing demand for pure natural compounds in the pharmaceutical and food industries. |
| first_indexed | 2024-03-10T12:28:06Z |
| format | Article |
| id | doaj.art-88603229060849feabf6e7f852fb50a4 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T12:28:06Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-88603229060849feabf6e7f852fb50a42023-11-21T14:54:14ZengMDPI AGMaterials1996-19442021-04-01148187410.3390/ma14081874Polymers Sorption Properties towards Photosynthetic Pigments and FungicidesMałgorzata Tatarczak-Michalewska0Jolanta Flieger1Justyna Kawka2Wojciech Płaziński3Tomasz Klepka4Piotr Flieger5Monika Szymańska-Chargot6Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, PolandDepartment of Analytical Chemistry, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, PolandDepartment of Analytical Chemistry, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, PolandJerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, PolandDepartment of Technology and Polymer Processing, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, PolandInterfaculty Centre for Didactics, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, PolandInstitute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, PolandIn the present work, extraction with a solvent (cold acetone) was used to extract the assimilation pigments from spinach leaves. Then, the sorption capacity of selected plastics granules (polyvinyl chloride—PVC, polypropylene—PP, polyethylene—PE of different densities) was tested for the selective isolation of chlorophylls. Quantification of chlorophylls by HPLC (Zorbax Eclipse XDB-C18 column, the mobile phase: Acetonitrile/methanol/ethyl acetate 6:2:2, <i>v</i>/<i>v</i>) was based on chlorophyll-a content as the most common chlorophyll. The performed experiments prove that PVC containing electronegative chlorine exhibits favorable interactions toward chlorophyll by creating stable molecular complexes. The Fourier Transform Raman Spectroscopy (FT-Raman) and the molecular modeling were used to elucidate the structure of the created complexes. The optimal extraction requirements, the mass of sorbent, water-acetone ratio, time, and the composition of the elution solvent were all established. The optimized extraction conditions ensured a maximum extraction yield of chlorophylls of 98%. The chlorophyll-rich sorbent was re-extracted by acetone, leading to the recovery of 91% of chlorophylls in one step, adding the possibility of its re-use. The proposed effective and ecological method of obtaining the green dye from plants is cheap, simple, and efficient, avoiding organic solvents, utilizing the most widely used synthetic polymers in the world, being products difficult for utilization. The possibility to remove chosen fungicides cyprodinil, chlorothalonil, and thiabendazone from plant extract by PVC was also examined. The described method proposes a new application of synthetic polymers, which meets the criteria of sustainable green chemistry, simultaneously reaching the growing demand for pure natural compounds in the pharmaceutical and food industries.https://www.mdpi.com/1996-1944/14/8/1874chlorophyllsfungicidessolid–liquid extractionpolymerssustainable chemistry |
| spellingShingle | Małgorzata Tatarczak-Michalewska Jolanta Flieger Justyna Kawka Wojciech Płaziński Tomasz Klepka Piotr Flieger Monika Szymańska-Chargot Polymers Sorption Properties towards Photosynthetic Pigments and Fungicides Materials chlorophylls fungicides solid–liquid extraction polymers sustainable chemistry |
| title | Polymers Sorption Properties towards Photosynthetic Pigments and Fungicides |
| title_full | Polymers Sorption Properties towards Photosynthetic Pigments and Fungicides |
| title_fullStr | Polymers Sorption Properties towards Photosynthetic Pigments and Fungicides |
| title_full_unstemmed | Polymers Sorption Properties towards Photosynthetic Pigments and Fungicides |
| title_short | Polymers Sorption Properties towards Photosynthetic Pigments and Fungicides |
| title_sort | polymers sorption properties towards photosynthetic pigments and fungicides |
| topic | chlorophylls fungicides solid–liquid extraction polymers sustainable chemistry |
| url | https://www.mdpi.com/1996-1944/14/8/1874 |
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