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Article

Green Solvent to Substitute Hexane for Bioactive Lipids Extraction from Black Cumin and Basil Seeds

by
Soumaya Bourgou
1,*,
Iness Bettaieb Rebey
1,2,
Sofiene Ben Kaab
1,3,
Majdi Hammami
1,
Sarra Dakhlaoui
1,
Selmi Sawsen
1,
Kamel Msaada
1,
Hiroko Isoda
4,
Riadh Ksouri
1 and
Marie-Laure Fauconnier
2
1
Laboratory of Medicinal and Aromatics Plant, Biotechnology Center of Borj-Cedria, BP 901, 2050 Hammam-Lif, Tunisia
2
Laboratory of Chemistry of Natural Molecules, Gembloux Agro-Bio Tech, Université de Liège, Passage des Déportés 2, 5030 Gembloux, Belgium
3
Integrated and Urban Plant Pathology Laboratory, Gembloux Agro-Bio Tech, University of Liège 2, 8 Passage des Déportés 2, 5030 Gembloux, Belgium
4
Faculty of Life and Environmental Sciences, School of Integrative and Global Majors (SIGMA), and Alliance for Research on Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba 3058572, Japan
*
Author to whom correspondence should be addressed.
Foods 2021, 10(7), 1493; https://doi.org/10.3390/foods10071493
Submission received: 15 May 2021 / Revised: 20 June 2021 / Accepted: 22 June 2021 / Published: 28 June 2021
(This article belongs to the Special Issue Bioactive Lipids: Advances in Green Extraction Technologies and Bioassays)
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Abstract

A comparative study of bioactive lipids extraction from black cumin (Nigella sativa L.) and basil (Ocimum basilicum L.) seeds using conventional petroleum-based solvent and green solvent 2-methyltetrahydrofuran (MeTHF) was performed. MeTHF extraction allowed obtaining the highest oil yield in black cumin (34%). Regarding fatty acids composition, linoleic acid (61%) and α-linolenic (78%) were relevant in black cumin and basil green and conventionally extracted oils, respectively. Besides, MeTHF allowed obtaining higher tocopherols and total phenolics contents in black cumin (400 mg/kg of oil and 12 mg EGA/g oil) and basil (317 mg/kg oil and 5 mg EGA/g oil) compared to hexane-extracted ones. The content of major phenolic compounds in the two seed oils, trans-hydroxycinnamic acid, rosmarinic acid, and thymol was enhanced by MeTHF extraction. Furthermore, MeTHF-extracted oils possess stronger antioxidant activities (radical scavenging, total antioxidant, and β-carotene bleaching activities) and high and similar anti-inflammatory capacity to hexane-extracted oils. In conclusion, the results revealed that MeTHF is efficient to replace hazardous solvents to extract oil from black cumin and basil seeds rich in compounds relevant to the human diet, including essential polyunsaturated fatty acids (n-6 and n-3), tocopherols, and phenolic compounds with improved biological activities.
Keywords: Nigella sativa; Ocimum basilicum; PUFA; tocopherols; phenolics; green extraction; bio-based solvent; bioactivities Nigella sativa; Ocimum basilicum; PUFA; tocopherols; phenolics; green extraction; bio-based solvent; bioactivities

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MDPI and ACS Style

Bourgou, S.; Bettaieb Rebey, I.; Ben Kaab, S.; Hammami, M.; Dakhlaoui, S.; Sawsen, S.; Msaada, K.; Isoda, H.; Ksouri, R.; Fauconnier, M.-L. Green Solvent to Substitute Hexane for Bioactive Lipids Extraction from Black Cumin and Basil Seeds. Foods 2021, 10, 1493. https://doi.org/10.3390/foods10071493

AMA Style

Bourgou S, Bettaieb Rebey I, Ben Kaab S, Hammami M, Dakhlaoui S, Sawsen S, Msaada K, Isoda H, Ksouri R, Fauconnier M-L. Green Solvent to Substitute Hexane for Bioactive Lipids Extraction from Black Cumin and Basil Seeds. Foods. 2021; 10(7):1493. https://doi.org/10.3390/foods10071493

Chicago/Turabian Style

Bourgou, Soumaya, Iness Bettaieb Rebey, Sofiene Ben Kaab, Majdi Hammami, Sarra Dakhlaoui, Selmi Sawsen, Kamel Msaada, Hiroko Isoda, Riadh Ksouri, and Marie-Laure Fauconnier. 2021. "Green Solvent to Substitute Hexane for Bioactive Lipids Extraction from Black Cumin and Basil Seeds" Foods 10, no. 7: 1493. https://doi.org/10.3390/foods10071493

APA Style

Bourgou, S., Bettaieb Rebey, I., Ben Kaab, S., Hammami, M., Dakhlaoui, S., Sawsen, S., Msaada, K., Isoda, H., Ksouri, R., & Fauconnier, M.-L. (2021). Green Solvent to Substitute Hexane for Bioactive Lipids Extraction from Black Cumin and Basil Seeds. Foods, 10(7), 1493. https://doi.org/10.3390/foods10071493

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