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Optimization and characterization of chia seed (Salvia hispanica L.) oil extraction using supercritical carbon dioxide

Quality of chia seed (Salvia hispanica L.) oil obtained by supercritical carbon dioxide (SC−CO2) is compared with Soxhlet extraction and commercial cold-pressed oil. Response surface methodology (RSM) was conducted to determine the effect of different extraction parameters (pressure, temperature, an...

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Main Authors: Ishak, Izzreen, Hussain, Norhayati, Coorey, Ranil, Abd Ghani, Maaruf
Format: Article
Published: Elsevier 2021
Online Access:http://psasir.upm.edu.my/id/eprint/94452/
https://www.sciencedirect.com/science/article/pii/S221298202031060X
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spelling my.upm.eprints.944522023-02-07T02:53:25Z http://psasir.upm.edu.my/id/eprint/94452/ Optimization and characterization of chia seed (Salvia hispanica L.) oil extraction using supercritical carbon dioxide Ishak, Izzreen Hussain, Norhayati Coorey, Ranil Abd Ghani, Maaruf Quality of chia seed (Salvia hispanica L.) oil obtained by supercritical carbon dioxide (SC−CO2) is compared with Soxhlet extraction and commercial cold-pressed oil. Response surface methodology (RSM) was conducted to determine the effect of different extraction parameters (pressure, temperature, and grinding time of chia seed) on chia seed oil yield. Linear and quadratic terms of pressure, temperature, and different particle sizes (various grinding times) significantly affected the amount of chia seed oil. The optimal extraction conditions using SC−CO2 to obtain the maximum yield of chia seed oil were as follows: chia seed particle size of 100−400 μm, 24 s of grinding time, extraction pressure of 335 bar and extraction temperature of 45 °C. However, the oil yield of chia seed extracted by SC−CO2 was lower than Soxhlet. Images captured by field emission scanning electron microscopy (FESEM) found a cracked surface in defatted chia seed powders with mostly oil released when high-pressure SC−CO2 is applied. Based on the optimized conditions, chia seed oils obtained by SC−CO2 and Soxhlet had comparable oxidation value, fatty acid composition, thermal properties, tocopherols, and antioxidant activity compared to commercial chia seed oil. However, oxidative stability test shows chia seed oil is less protected against oxidation due to the large amount of polyunsaturated fatty acids (PUFAs) more than 85 %. The present study suggests that SC−CO2 extraction is an effective method to produce chia seed oil with excellent sources of PUFAs and tocopherols. Elsevier 2021-01-17 Article PeerReviewed Ishak, Izzreen and Hussain, Norhayati and Coorey, Ranil and Abd Ghani, Maaruf (2021) Optimization and characterization of chia seed (Salvia hispanica L.) oil extraction using supercritical carbon dioxide. Journal of CO2 Utilization, 45. art. no. 101430. pp. 1-14. ISSN 2212-9820 (Unpublished) https://www.sciencedirect.com/science/article/pii/S221298202031060X 10.1016/j.jcou.2020.101430
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description Quality of chia seed (Salvia hispanica L.) oil obtained by supercritical carbon dioxide (SC−CO2) is compared with Soxhlet extraction and commercial cold-pressed oil. Response surface methodology (RSM) was conducted to determine the effect of different extraction parameters (pressure, temperature, and grinding time of chia seed) on chia seed oil yield. Linear and quadratic terms of pressure, temperature, and different particle sizes (various grinding times) significantly affected the amount of chia seed oil. The optimal extraction conditions using SC−CO2 to obtain the maximum yield of chia seed oil were as follows: chia seed particle size of 100−400 μm, 24 s of grinding time, extraction pressure of 335 bar and extraction temperature of 45 °C. However, the oil yield of chia seed extracted by SC−CO2 was lower than Soxhlet. Images captured by field emission scanning electron microscopy (FESEM) found a cracked surface in defatted chia seed powders with mostly oil released when high-pressure SC−CO2 is applied. Based on the optimized conditions, chia seed oils obtained by SC−CO2 and Soxhlet had comparable oxidation value, fatty acid composition, thermal properties, tocopherols, and antioxidant activity compared to commercial chia seed oil. However, oxidative stability test shows chia seed oil is less protected against oxidation due to the large amount of polyunsaturated fatty acids (PUFAs) more than 85 %. The present study suggests that SC−CO2 extraction is an effective method to produce chia seed oil with excellent sources of PUFAs and tocopherols.
format Article
author Ishak, Izzreen
Hussain, Norhayati
Coorey, Ranil
Abd Ghani, Maaruf
spellingShingle Ishak, Izzreen
Hussain, Norhayati
Coorey, Ranil
Abd Ghani, Maaruf
Optimization and characterization of chia seed (Salvia hispanica L.) oil extraction using supercritical carbon dioxide
author_facet Ishak, Izzreen
Hussain, Norhayati
Coorey, Ranil
Abd Ghani, Maaruf
author_sort Ishak, Izzreen
title Optimization and characterization of chia seed (Salvia hispanica L.) oil extraction using supercritical carbon dioxide
title_short Optimization and characterization of chia seed (Salvia hispanica L.) oil extraction using supercritical carbon dioxide
title_full Optimization and characterization of chia seed (Salvia hispanica L.) oil extraction using supercritical carbon dioxide
title_fullStr Optimization and characterization of chia seed (Salvia hispanica L.) oil extraction using supercritical carbon dioxide
title_full_unstemmed Optimization and characterization of chia seed (Salvia hispanica L.) oil extraction using supercritical carbon dioxide
title_sort optimization and characterization of chia seed (salvia hispanica l.) oil extraction using supercritical carbon dioxide
publisher Elsevier
publishDate 2021
url http://psasir.upm.edu.my/id/eprint/94452/
https://www.sciencedirect.com/science/article/pii/S221298202031060X
_version_ 1758579832691621888
score 13.211869

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