Life cycle assessment of green pilot-scale extraction processes to obtain potent antioxidants from rosemary leaves
Rodriguez Meizoso, Irene LU ; Castro-Puyana, Maria ; Börjesson, Pål LU ; Mendiola, Jose A. ; Turner, Charlotta LU
and Ibanez, Elena
(2012)
In Journal of Supercritical Fluids
72.
p.205-212
- Abstract
- In this work, the water extraction and particle formation on-line (WEPO) process has been used to obtain dry antioxidant powder from rosemary leaves. This process includes pressurized hot water extraction (PHWE) and on-line drying of the extracts in one step. Based on previous works, water extraction at 200 degrees C was selected to achieve the maximum antioxidant activity while water flow rate was studied to determine its influence on powder formation. Other parameters influencing the drying process, such as scCO(2) pressure (80 bar) and flow rate (2.5 mL/min) and N-2 flow rate (0.6 mL/min) were settled to obtain a fine and constant spray. Powders obtained were evaluated in terms of particle size and morphology by scanning electron... (More)
- In this work, the water extraction and particle formation on-line (WEPO) process has been used to obtain dry antioxidant powder from rosemary leaves. This process includes pressurized hot water extraction (PHWE) and on-line drying of the extracts in one step. Based on previous works, water extraction at 200 degrees C was selected to achieve the maximum antioxidant activity while water flow rate was studied to determine its influence on powder formation. Other parameters influencing the drying process, such as scCO(2) pressure (80 bar) and flow rate (2.5 mL/min) and N-2 flow rate (0.6 mL/min) were settled to obtain a fine and constant spray. Powders obtained were evaluated in terms of particle size and morphology by scanning electron microscopy (SEM) as well as antioxidant capacity by an in vitro DPPH antioxidant assay. In order to assess the environmental performance of the WEPO process, this has been compared in terms of Life Cycle Assessment (LCA) to other green processes typically used for antioxidant extraction from rosemary leaves, such as supercritical fluid extraction (SFE) and a static pressurized hot water extraction, PHWE, carried out with a commercial equipment, both followed by a conventional drying step. The WEPO process, carried out in one step, giving dry bioactive extracts from rosemary, results in lower environmental impacts and energy consumption than the other green processes studied. The sensitivity assessment demonstrated the importance of primary energy sources in the production of electricity used, especially when green processes are being implemented. (C) 2012 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3492281
- author
- Rodriguez Meizoso, Irene
LU
; Castro-Puyana, Maria
; Börjesson, Pål
LU
; Mendiola, Jose A.
; Turner, Charlotta
LU
and Ibanez, Elena
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Rosemary, On-line process, WEPO, Life cycle assessment, Pressurized hot, water extraction, SFE
- in
- Journal of Supercritical Fluids
- volume
- 72
- pages
- 205 - 212
- publisher
- Elsevier
- external identifiers
-
- wos:000313223900027
- scopus:84867436250
- ISSN
- 0896-8446
- DOI
- 10.1016/j.supflu.2012.09.005
- language
- English
- LU publication?
- yes
- id
- c020d2eb-8942-461c-b240-50351327a3b9 (old id 3492281)
- date added to LUP
- 2016-04-01 11:00:45
- date last changed
- 2024-04-22 03:11:33
@article{c020d2eb-8942-461c-b240-50351327a3b9,
abstract = {{In this work, the water extraction and particle formation on-line (WEPO) process has been used to obtain dry antioxidant powder from rosemary leaves. This process includes pressurized hot water extraction (PHWE) and on-line drying of the extracts in one step. Based on previous works, water extraction at 200 degrees C was selected to achieve the maximum antioxidant activity while water flow rate was studied to determine its influence on powder formation. Other parameters influencing the drying process, such as scCO(2) pressure (80 bar) and flow rate (2.5 mL/min) and N-2 flow rate (0.6 mL/min) were settled to obtain a fine and constant spray. Powders obtained were evaluated in terms of particle size and morphology by scanning electron microscopy (SEM) as well as antioxidant capacity by an in vitro DPPH antioxidant assay. In order to assess the environmental performance of the WEPO process, this has been compared in terms of Life Cycle Assessment (LCA) to other green processes typically used for antioxidant extraction from rosemary leaves, such as supercritical fluid extraction (SFE) and a static pressurized hot water extraction, PHWE, carried out with a commercial equipment, both followed by a conventional drying step. The WEPO process, carried out in one step, giving dry bioactive extracts from rosemary, results in lower environmental impacts and energy consumption than the other green processes studied. The sensitivity assessment demonstrated the importance of primary energy sources in the production of electricity used, especially when green processes are being implemented. (C) 2012 Elsevier B.V. All rights reserved.}},
author = {{Rodriguez Meizoso, Irene and Castro-Puyana, Maria and Börjesson, Pål and Mendiola, Jose A. and Turner, Charlotta and Ibanez, Elena}},
issn = {{0896-8446}},
keywords = {{Rosemary; On-line process; WEPO; Life cycle assessment; Pressurized hot; water extraction; SFE}},
language = {{eng}},
pages = {{205--212}},
publisher = {{Elsevier}},
series = {{Journal of Supercritical Fluids}},
title = {{Life cycle assessment of green pilot-scale extraction processes to obtain potent antioxidants from rosemary leaves}},
url = {{http://dx.doi.org/10.1016/j.supflu.2012.09.005}},
doi = {{10.1016/j.supflu.2012.09.005}},
volume = {{72}},
year = {{2012}},
}