Isolation of Anacardic Acid from Natural Cashew Nut Shell Liquid (CNSL) Using Supercritical Carbon Dioxide.
Philip, JosephYN LU ; da Cruz Francisco, José LU ; Dey, Estera LU ; Buchweishaija, Joseph ; Mkayula, Lupituko and Ye, Lei LU
(2008)
In Journal of Agricultural and Food Chemistry
56(20).
p.9350-9354
- Abstract
- Solvent extracted cashew nut shell liquid (CNSL), conventionally known as natural CNSL, is a mixture of several alkenyl phenols. One of these alkenyl phenols is anacardic acid, which is present at the highest concentration. In view of anticipated industrial applications of anacardic acid, the objective of this work was to isolate anacardic acid from natural CNSL by supercritical carbon dioxide (scCO 2). In this study, the solubility data for natural CNSL in scCO 2 under a range of operating conditions of pressure (100, 200, and 300 bar), temperature (40 and 50 degrees C), and CO 2 flow rate (5, 10, and 15 g min (-1)) were established. The best scCO 2 working conditions were found to be 50 degrees C and 300 bar at a flow rate of 5 g min... (More)
- Solvent extracted cashew nut shell liquid (CNSL), conventionally known as natural CNSL, is a mixture of several alkenyl phenols. One of these alkenyl phenols is anacardic acid, which is present at the highest concentration. In view of anticipated industrial applications of anacardic acid, the objective of this work was to isolate anacardic acid from natural CNSL by supercritical carbon dioxide (scCO 2). In this study, the solubility data for natural CNSL in scCO 2 under a range of operating conditions of pressure (100, 200, and 300 bar), temperature (40 and 50 degrees C), and CO 2 flow rate (5, 10, and 15 g min (-1)) were established. The best scCO 2 working conditions were found to be 50 degrees C and 300 bar at a flow rate of 5 g min (-1) CO 2. Using 3 g of sample (CNSL/solid adsorbent = 1/2) under these scCO 2 conditions, it was possible to quantitatively isolate high purity anacardic acid from crude natural CNSL (82% of total anacardic acid) within 150 min. The anacardic acid isolated by scCO 2 was analyzed by different spectroscopic techniques (UV-vis, FT-IR, and (1)H NMR) and HPLC analysis, indicating that the anacardic acid isolated by scCO 2 has better quality than that obtained through a conventional method involving several chemical conversion steps. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1242727
- author
- Philip, JosephYN
LU
; da Cruz Francisco, José
LU
; Dey, Estera
LU
; Buchweishaija, Joseph
; Mkayula, Lupituko
and Ye, Lei
LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Agricultural and Food Chemistry
- volume
- 56
- issue
- 20
- pages
- 9350 - 9354
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000260102500005
- pmid:18811166
- scopus:55549144382
- ISSN
- 0021-8561
- DOI
- 10.1021/jf801532a
- language
- English
- LU publication?
- yes
- id
- 06adfa01-7f06-4a39-9c87-6bd691264679 (old id 1242727)
- date added to LUP
- 2016-04-01 12:26:11
- date last changed
- 2022-01-27 03:44:01
@article{06adfa01-7f06-4a39-9c87-6bd691264679,
abstract = {{Solvent extracted cashew nut shell liquid (CNSL), conventionally known as natural CNSL, is a mixture of several alkenyl phenols. One of these alkenyl phenols is anacardic acid, which is present at the highest concentration. In view of anticipated industrial applications of anacardic acid, the objective of this work was to isolate anacardic acid from natural CNSL by supercritical carbon dioxide (scCO 2). In this study, the solubility data for natural CNSL in scCO 2 under a range of operating conditions of pressure (100, 200, and 300 bar), temperature (40 and 50 degrees C), and CO 2 flow rate (5, 10, and 15 g min (-1)) were established. The best scCO 2 working conditions were found to be 50 degrees C and 300 bar at a flow rate of 5 g min (-1) CO 2. Using 3 g of sample (CNSL/solid adsorbent = 1/2) under these scCO 2 conditions, it was possible to quantitatively isolate high purity anacardic acid from crude natural CNSL (82% of total anacardic acid) within 150 min. The anacardic acid isolated by scCO 2 was analyzed by different spectroscopic techniques (UV-vis, FT-IR, and (1)H NMR) and HPLC analysis, indicating that the anacardic acid isolated by scCO 2 has better quality than that obtained through a conventional method involving several chemical conversion steps.}},
author = {{Philip, JosephYN and da Cruz Francisco, José and Dey, Estera and Buchweishaija, Joseph and Mkayula, Lupituko and Ye, Lei}},
issn = {{0021-8561}},
language = {{eng}},
number = {{20}},
pages = {{9350--9354}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Journal of Agricultural and Food Chemistry}},
title = {{Isolation of Anacardic Acid from Natural Cashew Nut Shell Liquid (CNSL) Using Supercritical Carbon Dioxide.}},
url = {{http://dx.doi.org/10.1021/jf801532a}},
doi = {{10.1021/jf801532a}},
volume = {{56}},
year = {{2008}},
}