Microwave-assisted extraction of polyphenols and flavonoids from waste Achillea millefolium (yarrow) dust was optimised using the response surface methodology. The influence of the extraction time (13-47 s), ethanol concentration (53-87%), liquid/solid ratio (13-47 mL/g) and microwave power (170 and 340W) was studied. The optimised conditions for the maximal recovery of polyphenols and flavonoids were as follows: 33 s of extraction time, 70% of ethanol concentration, 40 mL/g of liquid/solid ratio and 170W of microwave power. Under the optimal conditions, 237.74 +/- 2.08 mg of gallic acid equivalents per g of extract dry matter of total polyphenols, and 42.95 +/- 1.32 mg of quercetin equivalents per g of extract dry matter of total flavonoids were extracted. The optimal extract strongly reduced the diphenylpicrylhydrazyl radical (IC50 7.89 mu g/mL). The antioxidant activity of the obtained extracts was in correlation to the total polyphenol content in yarrow extracts. Compared to the co...nventional extractions (solid-liquid extraction (24 h) and maceration (48 h)) microwave-assisted extraction yielded extracts with higher polyphenol and flavonoid content and higher antioxidant activity in very short time (33 s).
TY - JOUR
AU - Milutinović, Milica
AU - Radovanović, Neda
AU - Ćorović, Marija
AU - Šiler-Marinković, Slavica
AU - Rajilić-Stojanović, Mirjana
AU - Dimitrijević-Branković, Suzana
PY - 2015
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3098
AB - Microwave-assisted extraction of polyphenols and flavonoids from waste Achillea millefolium (yarrow) dust was optimised using the response surface methodology. The influence of the extraction time (13-47 s), ethanol concentration (53-87%), liquid/solid ratio (13-47 mL/g) and microwave power (170 and 340W) was studied. The optimised conditions for the maximal recovery of polyphenols and flavonoids were as follows: 33 s of extraction time, 70% of ethanol concentration, 40 mL/g of liquid/solid ratio and 170W of microwave power. Under the optimal conditions, 237.74 +/- 2.08 mg of gallic acid equivalents per g of extract dry matter of total polyphenols, and 42.95 +/- 1.32 mg of quercetin equivalents per g of extract dry matter of total flavonoids were extracted. The optimal extract strongly reduced the diphenylpicrylhydrazyl radical (IC50 7.89 mu g/mL). The antioxidant activity of the obtained extracts was in correlation to the total polyphenol content in yarrow extracts. Compared to the conventional extractions (solid-liquid extraction (24 h) and maceration (48 h)) microwave-assisted extraction yielded extracts with higher polyphenol and flavonoid content and higher antioxidant activity in very short time (33 s).
PB - Elsevier Science Bv, Amsterdam
T2 - Industrial Crops and Products
T1 - Optimisation of microwave-assisted extraction parameters for antioxidants from waste Achillea millefolium dust
EP - 341
SP - 333
VL - 77
DO - 10.1016/j.indcrop.2015.09.007
ER -
@article{
author = "Milutinović, Milica and Radovanović, Neda and Ćorović, Marija and Šiler-Marinković, Slavica and Rajilić-Stojanović, Mirjana and Dimitrijević-Branković, Suzana",
year = "2015",
abstract = "Microwave-assisted extraction of polyphenols and flavonoids from waste Achillea millefolium (yarrow) dust was optimised using the response surface methodology. The influence of the extraction time (13-47 s), ethanol concentration (53-87%), liquid/solid ratio (13-47 mL/g) and microwave power (170 and 340W) was studied. The optimised conditions for the maximal recovery of polyphenols and flavonoids were as follows: 33 s of extraction time, 70% of ethanol concentration, 40 mL/g of liquid/solid ratio and 170W of microwave power. Under the optimal conditions, 237.74 +/- 2.08 mg of gallic acid equivalents per g of extract dry matter of total polyphenols, and 42.95 +/- 1.32 mg of quercetin equivalents per g of extract dry matter of total flavonoids were extracted. The optimal extract strongly reduced the diphenylpicrylhydrazyl radical (IC50 7.89 mu g/mL). The antioxidant activity of the obtained extracts was in correlation to the total polyphenol content in yarrow extracts. Compared to the conventional extractions (solid-liquid extraction (24 h) and maceration (48 h)) microwave-assisted extraction yielded extracts with higher polyphenol and flavonoid content and higher antioxidant activity in very short time (33 s).",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Industrial Crops and Products",
title = "Optimisation of microwave-assisted extraction parameters for antioxidants from waste Achillea millefolium dust",
pages = "341-333",
volume = "77",
doi = "10.1016/j.indcrop.2015.09.007"
}
Milutinović, M., Radovanović, N., Ćorović, M., Šiler-Marinković, S., Rajilić-Stojanović, M.,& Dimitrijević-Branković, S.. (2015). Optimisation of microwave-assisted extraction parameters for antioxidants from waste Achillea millefolium dust. in Industrial Crops and Products
Elsevier Science Bv, Amsterdam., 77, 333-341.
https://doi.org/10.1016/j.indcrop.2015.09.007
Milutinović M, Radovanović N, Ćorović M, Šiler-Marinković S, Rajilić-Stojanović M, Dimitrijević-Branković S. Optimisation of microwave-assisted extraction parameters for antioxidants from waste Achillea millefolium dust. in Industrial Crops and Products. 2015;77:333-341.
doi:10.1016/j.indcrop.2015.09.007 .
Milutinović, Milica, Radovanović, Neda, Ćorović, Marija, Šiler-Marinković, Slavica, Rajilić-Stojanović, Mirjana, Dimitrijević-Branković, Suzana, "Optimisation of microwave-assisted extraction parameters for antioxidants from waste Achillea millefolium dust" in Industrial Crops and Products, 77 (2015):333-341,
https://doi.org/10.1016/j.indcrop.2015.09.007 . .
