Environmentally Friendly Extraction of Bioactive Compounds from Spruce and Pine Needles to Obtain Extracts with Antioxidant and Antimicrobial Activity
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| Publicado en: | Rigas Tehniskas Universitates Zinatniskie Raksti vol. 29, no. 1 (2025), p. 184-201 |
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| Autor Principal: | |
| Outros autores: | , , , , |
| Publicado: |
Riga Technical University
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| Acceso en liña: | Citation/Abstract Full Text - PDF |
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| 022 | |a 1691-5208 | ||
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| 024 | 7 | |a 10.2478/rtuect-2025-0013 |2 doi | |
| 035 | |a 3216849232 | ||
| 045 | 2 | |b d20250101 |b d20251231 | |
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| 100 | 1 | |a Marcis, Mezulis |u 1,2,6 Department of Environmental Science , University of Latvia , Jelgavas st. 1 , Riga , LV 1004 , Latvia | |
| 245 | 1 | |a Environmentally Friendly Extraction of Bioactive Compounds from Spruce and Pine Needles to Obtain Extracts with Antioxidant and Antimicrobial Activity | |
| 260 | |b Riga Technical University |c 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a Timber harvesting of coniferous trees (the most abundant species in the Northern Hemisphere) leaves significant greenery side streams – coniferous needles and branches (pine, spruce and other species). Coniferous needles have been widely used in ethnomedicine, and recent research characterizes them as rich sources of biologically active compounds with immunostimulatory and anti-inflammation activities, as well as they are traditionally used to treat inflammation of the respiratory tract, colds and flu. However, new sustainable extraction methods should be proposed to obtain coniferous needle extracts with biomedical application potential. Classical extraction methods (stirring and heating) were used in this study and compared with ultrasonic treatment, and process duration and temperature optimisation were performed. During extraction, glycerol and propylene glycol, solvents widely used in the food and pharmaceutical industries, were used to improve the extracts’ stability. Obtained coniferous needle and branch extracts were characterized by their antiradical activities (17–82 % Trolox eq.) and total polyphenol concentration (6–22 % gallic acid eq.) was analysed. The extracts were tested for antibacterial and antifungal activity, which demonstrates activities comparable to synthetic drugs with potentially lower side effects caused by drugs. | |
| 653 | |a Side effects | ||
| 653 | |a Fungicides | ||
| 653 | |a Pine needles | ||
| 653 | |a Forestry | ||
| 653 | |a Ultrasonic processing | ||
| 653 | |a Northern Hemisphere | ||
| 653 | |a Leaves | ||
| 653 | |a Biological activity | ||
| 653 | |a Pharmaceutical industry | ||
| 653 | |a Antioxidants | ||
| 653 | |a Biomass | ||
| 653 | |a Respiratory tract | ||
| 653 | |a Vitamin E | ||
| 653 | |a Antiinfectives and antibacterials | ||
| 653 | |a Ethanol | ||
| 653 | |a Inflammation | ||
| 653 | |a Food industry | ||
| 653 | |a Gallic acid | ||
| 653 | |a Glycerol | ||
| 653 | |a Viscosity | ||
| 653 | |a Branches | ||
| 653 | |a Pharmaceuticals | ||
| 653 | |a Cellulose | ||
| 653 | |a Biomedical materials | ||
| 653 | |a Bioactive compounds | ||
| 653 | |a Temperature | ||
| 653 | |a Solvents | ||
| 653 | |a Coniferous trees | ||
| 653 | |a Immunostimulation | ||
| 653 | |a Antimicrobial agents | ||
| 653 | |a Polyphenols | ||
| 653 | |a Antifungal activity | ||
| 653 | |a Green chemistry | ||
| 653 | |a Antimicrobial activity | ||
| 653 | |a Propylene | ||
| 653 | |a Ultrasonic imaging | ||
| 653 | |a Propylene glycol | ||
| 653 | |a Pine | ||
| 653 | |a Environmental | ||
| 700 | 1 | |a Arbidans Lauris |u 1,2,6 Department of Environmental Science , University of Latvia , Jelgavas st. 1 , Riga , LV 1004 , Latvia | |
| 700 | 1 | |a Nikolajeva Vizma |u Microbial Strain Collection of Latvia, Institute of Microbiology and Biotechnology , University of Latvia , Jelgavas st. 1 , Riga , LV 1004 , Latvia | |
| 700 | 1 | |a Maris, Lauberts |u Latvian State Institute of Wood Chemistry , Dzerbenes st. 27 , Riga , LV 1006 , Latvia | |
| 700 | 1 | |a Grinfelds Uldis |u Latvian State Forest Research Institute Silava , Riga st. 111 , Salaspils , LV 2169 , Latvia | |
| 700 | 1 | |a Klavins Maris |u 1,2,6 Department of Environmental Science , University of Latvia , Jelgavas st. 1 , Riga , LV 1004 , Latvia | |
| 773 | 0 | |t Rigas Tehniskas Universitates Zinatniskie Raksti |g vol. 29, no. 1 (2025), p. 184-201 | |
| 786 | 0 | |d ProQuest |t Engineering Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3216849232/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3216849232/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |