Microwave-assisted extraction for the recovery of antioxidants from waste Equisetum arvense
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2014
Authors
Milutinović, MilicaRadovanović, Neda
Rajilić-Stojanović, Mirjana
Šiler-Marinković, Slavica
Dimitrijević, Snežana
Dimitrijević-Branković, Suzana
Article (Published version)
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Microwave-assisted extraction was optimised by the response surface methodology in order to enhance the extraction of polyphenols from Equisetum arvense (horsetail). Under the optimal conditions the total polyphenol content in extract reached a concentration of 161.57 mg of gallic acid equivalents per g of extract dry matter. The optimal conditions were reached with 54.5% of ethanol, 45.1 mL/g liquid/solid ratio, the microwave power of 170 Wand 80s extraction time. The antioxidant activity of obtained extract was evaluated by FRAP (ferric reducing antioxidant power) and DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity assay. Since, the conditions that favoured maximum polyphenol content in extract were the same as the conditions that favoured maximum antioxidant activity, the polyphenols were identified as the predominant antioxidants in horsetail extracts. When compared to the conventional extraction method (solid liquid extraction for 12 h), our results showed that mo...re polyphenols can be extracted from waste horsetail using microwave extraction and aqueous ethanol, for just 80s. The extracts obtained by optimised extraction procedure exhibit significant antioxidant activity and can be used as a natural source of antioxidants.
Keywords:
Microwave-assisted extraction / Optimisation / Polyphenols / Equisetum arvense / Antioxidant activitySource:
Industrial Crops and Products, 2014, 61, 388-397Publisher:
- Elsevier, Amsterdam
Funding / projects:
- Application of biotechnological methods for sustainable exploitation of by-products of agro-industry (RS-MESTD-Technological Development (TD or TR)-31035)
DOI: 10.1016/j.indcrop.2014.07.039
ISSN: 0926-6690
WoS: 000343339200050
Scopus: 2-s2.0-84907331728
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Tehnološko-metalurški fakultetTY - JOUR AU - Milutinović, Milica AU - Radovanović, Neda AU - Rajilić-Stojanović, Mirjana AU - Šiler-Marinković, Slavica AU - Dimitrijević, Snežana AU - Dimitrijević-Branković, Suzana PY - 2014 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2736 AB - Microwave-assisted extraction was optimised by the response surface methodology in order to enhance the extraction of polyphenols from Equisetum arvense (horsetail). Under the optimal conditions the total polyphenol content in extract reached a concentration of 161.57 mg of gallic acid equivalents per g of extract dry matter. The optimal conditions were reached with 54.5% of ethanol, 45.1 mL/g liquid/solid ratio, the microwave power of 170 Wand 80s extraction time. The antioxidant activity of obtained extract was evaluated by FRAP (ferric reducing antioxidant power) and DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity assay. Since, the conditions that favoured maximum polyphenol content in extract were the same as the conditions that favoured maximum antioxidant activity, the polyphenols were identified as the predominant antioxidants in horsetail extracts. When compared to the conventional extraction method (solid liquid extraction for 12 h), our results showed that more polyphenols can be extracted from waste horsetail using microwave extraction and aqueous ethanol, for just 80s. The extracts obtained by optimised extraction procedure exhibit significant antioxidant activity and can be used as a natural source of antioxidants. PB - Elsevier, Amsterdam T2 - Industrial Crops and Products T1 - Microwave-assisted extraction for the recovery of antioxidants from waste Equisetum arvense EP - 397 SP - 388 VL - 61 DO - 10.1016/j.indcrop.2014.07.039 ER -
@article{ author = "Milutinović, Milica and Radovanović, Neda and Rajilić-Stojanović, Mirjana and Šiler-Marinković, Slavica and Dimitrijević, Snežana and Dimitrijević-Branković, Suzana", year = "2014", abstract = "Microwave-assisted extraction was optimised by the response surface methodology in order to enhance the extraction of polyphenols from Equisetum arvense (horsetail). Under the optimal conditions the total polyphenol content in extract reached a concentration of 161.57 mg of gallic acid equivalents per g of extract dry matter. The optimal conditions were reached with 54.5% of ethanol, 45.1 mL/g liquid/solid ratio, the microwave power of 170 Wand 80s extraction time. The antioxidant activity of obtained extract was evaluated by FRAP (ferric reducing antioxidant power) and DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity assay. Since, the conditions that favoured maximum polyphenol content in extract were the same as the conditions that favoured maximum antioxidant activity, the polyphenols were identified as the predominant antioxidants in horsetail extracts. When compared to the conventional extraction method (solid liquid extraction for 12 h), our results showed that more polyphenols can be extracted from waste horsetail using microwave extraction and aqueous ethanol, for just 80s. The extracts obtained by optimised extraction procedure exhibit significant antioxidant activity and can be used as a natural source of antioxidants.", publisher = "Elsevier, Amsterdam", journal = "Industrial Crops and Products", title = "Microwave-assisted extraction for the recovery of antioxidants from waste Equisetum arvense", pages = "397-388", volume = "61", doi = "10.1016/j.indcrop.2014.07.039" }
Milutinović, M., Radovanović, N., Rajilić-Stojanović, M., Šiler-Marinković, S., Dimitrijević, S.,& Dimitrijević-Branković, S.. (2014). Microwave-assisted extraction for the recovery of antioxidants from waste Equisetum arvense. in Industrial Crops and Products Elsevier, Amsterdam., 61, 388-397. https://doi.org/10.1016/j.indcrop.2014.07.039
Milutinović M, Radovanović N, Rajilić-Stojanović M, Šiler-Marinković S, Dimitrijević S, Dimitrijević-Branković S. Microwave-assisted extraction for the recovery of antioxidants from waste Equisetum arvense. in Industrial Crops and Products. 2014;61:388-397. doi:10.1016/j.indcrop.2014.07.039 .
Milutinović, Milica, Radovanović, Neda, Rajilić-Stojanović, Mirjana, Šiler-Marinković, Slavica, Dimitrijević, Snežana, Dimitrijević-Branković, Suzana, "Microwave-assisted extraction for the recovery of antioxidants from waste Equisetum arvense" in Industrial Crops and Products, 61 (2014):388-397, https://doi.org/10.1016/j.indcrop.2014.07.039 . .