Assessment of radical scavenging capacity of Agrimonia extracts isolated by supercritical carbon dioxide
(2008) In Journal of Supercritical Fluids 45(2). p.231-237- Abstract
- The results on the extraction of natural compounds from Agrimonia eupatoria and Agrimonia procera by using supercritical carbon dioxide (SC-CO2) are presented. Two agrimony species were extracted in laboratory scale equipment at various parameters and it was found that in case of A. eupatoria the increase in extraction pressure and the addition of a co-solvent ethanol remarkably increases the yield of the extracts, up to 4.25% at 25 MPa and 1% of ethanol. The highest yield from A. procera was 3.39% at the same conditions; however the dependence of pressure on extract yield was not so evident. In general, the extracts isolated at higher pressure were more effective free radical scavengers, although this dependence for some extracts,... (More)
- The results on the extraction of natural compounds from Agrimonia eupatoria and Agrimonia procera by using supercritical carbon dioxide (SC-CO2) are presented. Two agrimony species were extracted in laboratory scale equipment at various parameters and it was found that in case of A. eupatoria the increase in extraction pressure and the addition of a co-solvent ethanol remarkably increases the yield of the extracts, up to 4.25% at 25 MPa and 1% of ethanol. The highest yield from A. procera was 3.39% at the same conditions; however the dependence of pressure on extract yield was not so evident. In general, the extracts isolated at higher pressure were more effective free radical scavengers, although this dependence for some extracts, especially obtained from A. procera was rather complicated. The concentration of phenolics in A. eupatoria and A. procera SC-CO2 extracts was 2.3-8.3 and 2.5-7.1 mg/g, respectively. The compositions of SFE and organic solvent extracts were totally different. (C) 2008 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1201185
- author
- Venskutonis, P R ; Skemaite, M and Sivik, Björn LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- phenolic compounds, radical scavenging capacity, extraction, carbon dioxide, Agrimonia eupatoria L., Agrimonia procera Wallr.
- in
- Journal of Supercritical Fluids
- volume
- 45
- issue
- 2
- pages
- 231 - 237
- publisher
- Elsevier
- external identifiers
-
- wos:000256392800016
- scopus:42749091817
- ISSN
- 0896-8446
- DOI
- 10.1016/j.supflu.2008.01.012
- language
- English
- LU publication?
- yes
- id
- 92340885-4a3d-48ca-9480-a40b2610c854 (old id 1201185)
- date added to LUP
- 2016-04-01 12:00:02
- date last changed
- 2022-01-26 21:22:50
@article{92340885-4a3d-48ca-9480-a40b2610c854,
abstract = {{The results on the extraction of natural compounds from Agrimonia eupatoria and Agrimonia procera by using supercritical carbon dioxide (SC-CO2) are presented. Two agrimony species were extracted in laboratory scale equipment at various parameters and it was found that in case of A. eupatoria the increase in extraction pressure and the addition of a co-solvent ethanol remarkably increases the yield of the extracts, up to 4.25% at 25 MPa and 1% of ethanol. The highest yield from A. procera was 3.39% at the same conditions; however the dependence of pressure on extract yield was not so evident. In general, the extracts isolated at higher pressure were more effective free radical scavengers, although this dependence for some extracts, especially obtained from A. procera was rather complicated. The concentration of phenolics in A. eupatoria and A. procera SC-CO2 extracts was 2.3-8.3 and 2.5-7.1 mg/g, respectively. The compositions of SFE and organic solvent extracts were totally different. (C) 2008 Elsevier B.V. All rights reserved.}},
author = {{Venskutonis, P R and Skemaite, M and Sivik, Björn}},
issn = {{0896-8446}},
keywords = {{phenolic compounds; radical scavenging capacity; extraction; carbon dioxide; Agrimonia eupatoria L.; Agrimonia procera Wallr.}},
language = {{eng}},
number = {{2}},
pages = {{231--237}},
publisher = {{Elsevier}},
series = {{Journal of Supercritical Fluids}},
title = {{Assessment of radical scavenging capacity of Agrimonia extracts isolated by supercritical carbon dioxide}},
url = {{http://dx.doi.org/10.1016/j.supflu.2008.01.012}},
doi = {{10.1016/j.supflu.2008.01.012}},
volume = {{45}},
year = {{2008}},
}