Optimum Extraction Technology for the Seed Oil of <i>Nigella sativa</i> L<i>.</i>

Ma, Changyang; Liu, Cunyu; Ahmed, Adel F.; Niu, Yingying

doi:10.1155/2019/2592731

Cited by 4 publications

(2 citation statements)

References 14 publications

(13 reference statements)

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“…Antibacterial activity against some Bacillus species can help signify the effect on normal gut flora when oral therapy is followed. Trying different extraction protocols can help increase extraction efficiency [ 21 ]. The study on presence, extraction, and purification of thymoquinone in the local produce of black seed can be fruitful for conducting the stability studies and can help to gain maximum benefits from the bioactives.…”

Section: Introductionmentioning

confidence: 99%

HPLC Quantification of Thymoquinone Extracted from Nigella sativa L. (Ranunculaceae) Seeds and Antibacterial Activity of Its Extracts against Bacillus Species

Habib

Choudhry

2021

Evidence-Based Complementary and Alternative Medicine

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The medicinal importance of Nigella sativa seeds for treating various ailments is portrayed by its traditional uses. Owing to its immense pharmacological importance, the thymoquinone phytoconstituent of N. sativa can prove beneficial for the South Asian countries including Pakistan, where this seed is commonly produced and healthcare facilities are limited. In this study, the antibacterial activity of various extracts of N. sativa seeds, extracted thymoquinone, and oil samples have been investigated against Bacillus subtilis and Bacillus licheniformis using well and disc diffusion assay. The inhibition zones ranged between 7 and 44 mm against both the bacterial strains by well diffusion assay, while disc diffusion assay provided inhibition zones in the range of 7–23 mm. Commercial and local Kalonji oil samples were included in the study. Oil samples dissolved in methanol showed increased inhibition of bacteria. However, the extracted thymoquinone showed highest antibacterial activity. Medicine formulated using thymoquinone will prove to be an herbal alternate against the resistant microbiota associated with bacterial infections. Antibacterial activity against some Bacillus species will help signify the effect on normal gut flora when oral therapy is followed. Trying different extraction protocols can help increase extraction efficiency. Study on extraction of thymoquinone in local produce of black seed can be fruitful for conducting the stability studies and can help to gain maximum benefits from the bioactives. The crude extracts from 10 g of these seeds were subjected to preliminary phytochemical investigation. Results showed that although methanol extract had the presence of maximum phytochemicals, hexane extract was the most potent in terms of antibacterial activity. Thymoquinone, a therapeutically important bioactive in N. sativa seed, was extracted employing both solvents. TLC assay and UV spectroscopy were used for its qualitative assessment, while HPLC-UV quantification showed that 250 mg/mL of methanol extract had 368.3 μg/mL thymoquinone, while its successive extraction yielded 32.94 μg/mL thymoquinone.

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Section: Introductionmentioning

confidence: 99%

HPLC Quantification of Thymoquinone Extracted from Nigella sativa L. (Ranunculaceae) Seeds and Antibacterial Activity of Its Extracts against Bacillus Species

Habib

Choudhry

2021

Evidence-Based Complementary and Alternative Medicine

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“…The seeds of N. sativa have been shown to exert anticancer, immunomodulative, anti-inflammatory, anti-bacterial, antioxidant, hypoglycemic, stomach protection, liver protection, and renal protection activities (20)(21)(22). The seeds and oil of N. sativa are widely used in food preparation and medicine (23,24). In addition, literature has shown that the co-delivery of nutrient supplements and drugs could contribute to promising results.…”

Section: Introductionmentioning

confidence: 99%

Nigella sativa: A Dietary Supplement as an Immune-Modulator on the Basis of Bioactive Components

et al. 2021

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Nutrients can be considered as functional foods, which exert physiological benefits on immune system. The seeds of Nigella sativa, which have many active constituents, are mainly used for medicine, food spice, and nutritional supplements in Egypt. Much attention has been paid to N. sativa seeds for their anticancer, antibacterial, anti-inflammatory, and immune properties. However, their active constituents and mechanisms underlying functions from N. sativa seeds is unclear. Thus, the bioactive constituents with immune regulation in N. sativa seeds were systematically studied. A new compound (3-methoxythymol-6-O-β-D-apiofuranosyl-(1→6)-β-D-glucopyranoside 1) and 11 known compounds (2–12) were separated from the N. sativa seeds by chromatographic methods. Their structures were then elucidated by spectroscopic analysis of MS, UV, IR, 1H-, and 13C-NMR. Furthermore, immunomodulatory effects of those compounds in RAW 264.7 cells were evaluated by phagocytosis, nitric oxide (NO) and cytokine release, related mRNA transcription, and key proteins expression in vitro. Monosaccharide derivatives, Ethyl-α-D-furaarabinose (5), and Ethyl-β-D-fructofuranoside (8) were shown to played bidirectional regulatory roles in immunity and anti-inflammation through the regulation of nuclear factor-κB (NF-κB) signaling pathways. The results showed the active compounds and mechanisms of immune regulation in N. sativa, thus indicating that N. sativa seeds could be used as dietary supplements in immunomodulation.

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Production process, methods of extraction, and refining technologies of unconventional seed oils

Piloto‐Rodríguez

Díaz-Domínguez

2022

Multiple Biological Activities of Unconventional Seed Oils

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Optimum Extraction Technology for the Seed Oil of Nigella sativa L.

Cited by 4 publications

References 14 publications

HPLC Quantification of Thymoquinone Extracted from Nigella sativa L. (Ranunculaceae) Seeds and Antibacterial Activity of Its Extracts against Bacillus Species

HPLC Quantification of Thymoquinone Extracted from Nigella sativa L. (Ranunculaceae) Seeds and Antibacterial Activity of Its Extracts against Bacillus Species

Nigella sativa: A Dietary Supplement as an Immune-Modulator on the Basis of Bioactive Components

Production process, methods of extraction, and refining technologies of unconventional seed oils

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