High-Power Ultrasound and High-Voltage Electrical Discharge-Assisted Extractions of Bioactive Compounds from Sugar Beet (<i>Beta vulgaris</i> L.) Waste: Electron Spin Resonance and Optical Emission Spectroscopy Analysis
To achieve sustainable extractions, this study examines the impact of different extraction methods to utilize waste from the sugar industry. In addition to conventional thermal extraction, the impact of high-power ultrasound (US) and high-voltage electrical discharge (HVED)-assisted extractions on t...
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MDPI AG
2025-02-01
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| author | Josipa Dukić Anet Režek Jambrak Jurica Jurec Dalibor Merunka Srećko Valić Rafaela Radičić Nikša Krstulović Marinela Nutrizio Igor Dubrović |
| author_facet | Josipa Dukić Anet Režek Jambrak Jurica Jurec Dalibor Merunka Srećko Valić Rafaela Radičić Nikša Krstulović Marinela Nutrizio Igor Dubrović |
| author_sort | Josipa Dukić |
| collection | DOAJ |
| description | To achieve sustainable extractions, this study examines the impact of different extraction methods to utilize waste from the sugar industry. In addition to conventional thermal extraction, the impact of high-power ultrasound (US) and high-voltage electrical discharge (HVED)-assisted extractions on the yield of bioactive compounds and the antioxidant capacity (AC) value of sugar beet leaf extracts was determined. US extraction proved to be an excellent method for extracting bioactive compounds, while HVED extraction proved to be an excellent method for extracting Vitexin. AC was measured both spectrophotometrically (DPPH and FRAP) and spectroscopically via electron spin resonance (ESR). The AC results correlate with each other, and the highest AC values were found in the US-treated samples with 25% ethanol solution as the extraction solvent. Characterization of the plasma via optical emission spectroscopy (OES) showed that neither the solvent nor the sample influenced the plasma spectra, only the gas used (nitrogen/argon). All of the obtained results provide an excellent basis for future research into the utilization of food waste and by-products. |
| format | Article |
| id | doaj-art-c30b34659d2a4a8b9dee9ddf425e6a82 |
| institution | DOAJ |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
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| series | Molecules |
| spelling | doaj-art-c30b34659d2a4a8b9dee9ddf425e6a822025-08-20T02:44:39ZengMDPI AGMolecules1420-30492025-02-0130479610.3390/molecules30040796High-Power Ultrasound and High-Voltage Electrical Discharge-Assisted Extractions of Bioactive Compounds from Sugar Beet (<i>Beta vulgaris</i> L.) Waste: Electron Spin Resonance and Optical Emission Spectroscopy AnalysisJosipa Dukić0Anet Režek Jambrak1Jurica Jurec2Dalibor Merunka3Srećko Valić4Rafaela Radičić5Nikša Krstulović6Marinela Nutrizio7Igor Dubrović8Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, CroatiaFaculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, CroatiaRuđer Bošković Institute, 10000 Zagreb, CroatiaRuđer Bošković Institute, 10000 Zagreb, CroatiaRuđer Bošković Institute, 10000 Zagreb, CroatiaInstitute of Physics, Bijenička Cesta 46, 10000 Zagreb, CroatiaInstitute of Physics, Bijenička Cesta 46, 10000 Zagreb, CroatiaFaculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Environmental Health, Teaching Institute of Public Health of Primorje-Gorski Kotar County, 51000 Rijeka, CroatiaTo achieve sustainable extractions, this study examines the impact of different extraction methods to utilize waste from the sugar industry. In addition to conventional thermal extraction, the impact of high-power ultrasound (US) and high-voltage electrical discharge (HVED)-assisted extractions on the yield of bioactive compounds and the antioxidant capacity (AC) value of sugar beet leaf extracts was determined. US extraction proved to be an excellent method for extracting bioactive compounds, while HVED extraction proved to be an excellent method for extracting Vitexin. AC was measured both spectrophotometrically (DPPH and FRAP) and spectroscopically via electron spin resonance (ESR). The AC results correlate with each other, and the highest AC values were found in the US-treated samples with 25% ethanol solution as the extraction solvent. Characterization of the plasma via optical emission spectroscopy (OES) showed that neither the solvent nor the sample influenced the plasma spectra, only the gas used (nitrogen/argon). All of the obtained results provide an excellent basis for future research into the utilization of food waste and by-products.https://www.mdpi.com/1420-3049/30/4/796high-voltage electrical dischargehigh-power ultrasoundsugar beet leavesbioactive compoundsantioxidant capacityelectron spin resonance spectroscopy |
| spellingShingle | Josipa Dukić Anet Režek Jambrak Jurica Jurec Dalibor Merunka Srećko Valić Rafaela Radičić Nikša Krstulović Marinela Nutrizio Igor Dubrović High-Power Ultrasound and High-Voltage Electrical Discharge-Assisted Extractions of Bioactive Compounds from Sugar Beet (<i>Beta vulgaris</i> L.) Waste: Electron Spin Resonance and Optical Emission Spectroscopy Analysis Molecules high-voltage electrical discharge high-power ultrasound sugar beet leaves bioactive compounds antioxidant capacity electron spin resonance spectroscopy |
| title | High-Power Ultrasound and High-Voltage Electrical Discharge-Assisted Extractions of Bioactive Compounds from Sugar Beet (<i>Beta vulgaris</i> L.) Waste: Electron Spin Resonance and Optical Emission Spectroscopy Analysis |
| title_full | High-Power Ultrasound and High-Voltage Electrical Discharge-Assisted Extractions of Bioactive Compounds from Sugar Beet (<i>Beta vulgaris</i> L.) Waste: Electron Spin Resonance and Optical Emission Spectroscopy Analysis |
| title_fullStr | High-Power Ultrasound and High-Voltage Electrical Discharge-Assisted Extractions of Bioactive Compounds from Sugar Beet (<i>Beta vulgaris</i> L.) Waste: Electron Spin Resonance and Optical Emission Spectroscopy Analysis |
| title_full_unstemmed | High-Power Ultrasound and High-Voltage Electrical Discharge-Assisted Extractions of Bioactive Compounds from Sugar Beet (<i>Beta vulgaris</i> L.) Waste: Electron Spin Resonance and Optical Emission Spectroscopy Analysis |
| title_short | High-Power Ultrasound and High-Voltage Electrical Discharge-Assisted Extractions of Bioactive Compounds from Sugar Beet (<i>Beta vulgaris</i> L.) Waste: Electron Spin Resonance and Optical Emission Spectroscopy Analysis |
| title_sort | high power ultrasound and high voltage electrical discharge assisted extractions of bioactive compounds from sugar beet i beta vulgaris i l waste electron spin resonance and optical emission spectroscopy analysis |
| topic | high-voltage electrical discharge high-power ultrasound sugar beet leaves bioactive compounds antioxidant capacity electron spin resonance spectroscopy |
| url | https://www.mdpi.com/1420-3049/30/4/796 |
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