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GC-MS metabolites profiling of anethole-rich oils by different extraction techniques: antioxidant, cytotoxicity and in-silico enzymes inhibitory insights.

ABSTRACT: GC-MS profiling and metabolomics study of anise and star anise oils obtained by hydrodistillation, n-hexane, and microwave-assisted extraction methods were conducted herein. Trans-anethole was the major phenylpropanoid in both oils. Principal component and hierarchical cluster analyses revealed a clear separation of different extraction methods. Microwave-assisted star anise oil (MSA) revealed the highest anethole content (93.78%). MSA oil showed antioxidant activity using DPPH and ABTS assays, this was verified via an in-silico docking study of its major compounds on human tyrosinase and NAD(P)H oxidase. Trans-anethole displayed the best fitting scores (-8.9 and -10.1 Kcal/mole, respectively). MSA oil showed promising cytotoxic activity on different cell lines, mainly the cervical (HeLa) cell lines. Cell cycle inhibition at the G0-G1 phase was observed with an early apoptotic effect of the oil on HeLa cells. Trans-anethole achieved the best docking scores (-7.9, -9.3 and -9.9 Kcal/mole) for in-silico study on EGFR, CDK2 and CDK4 enzymes engaged in cancer, respectively.

SUBMITTER: El-Kersh DM

PROVIDER: S-EPMC9302011 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature

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GC-MS metabolites profiling of anethole-rich oils by different extraction techniques: antioxidant, cytotoxicity and in-silico enzymes inhibitory insights.

El-Kersh Dina M DM Mostafa Nada M NM Fayez Shaimaa S Al-Warhi Tarfah T Abourehab Mohammed A S MAS Eldehna Wagdy M WM Salem Mohamed A MA

Journal of enzyme inhibition and medicinal chemistry 20221201 1

GC-MS profiling and metabolomics study of anise and star anise oils obtained by hydrodistillation, n-hexane, and microwave-assisted extraction methods were conducted herein. Trans-anethole was the major phenylpropanoid in both oils. Principal component and hierarchical cluster analyses revealed a clear separation of different extraction methods. Microwave-assisted star anise oil (MSA) revealed the highest anethole content (93.78%). MSA oil showed antioxidant activity using DPPH and ...[more]

PMID: 35850583

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Project description:Species belonging to the Zingiberaceae family are of high nutritional, industrial, and medicinal values. In this study, we investigated the effect of processing steps (fresh vs. dried milled rhizomes) and extraction methodologies (hydrodistillation vs. hexane extraction) of curcuma essential oil on its chemical content (using GC-MS analysis), its antioxidant behavior (using in vitro assays such as DPPH, ABTS, CUPRAC, FRAP, phosphomolybdenum, and metal chelation), and its enzyme inhibitory activities (on tyrosinase, acetylcholinesterase, butylcholinesterase, α-amylase, and α-glucosidase) supported by multivariate analysis, in silico studies, and molecular dynamics. The GC-MS investigations revealed a high degree of similarity in the chemical profile of fresh hydrodistilled and hexane-extracted essential oils with tumerone and curlone being the major metabolites. The extraction techniques affected the concentrations of other minor constituents such as terpinolene, caryophylla-4(12), 8(13)-dien-5α-ol, and neo-intermedeol, which were almost exclusively detected in the hydrodistilled fresh essential oil; however, zingiberene and β-sesquiphellandrene were predominant in the hexane-extracted fresh essential oil. In the dried curcuma rhizomes, tumerone and curlone contents were significantly reduced, with the former being detected only in the hydrodistilled essential oil while the latter was doubly concentrated in the hexane-derived oil. Constituents such as D-limonene and caryophyllene oxide represented ca. 29% of the dried hydrodistilled essential oil, while ar-turmerone was detected only in the dried hydrodistilled and hexane-extracted essential oils, representing ca. 16% and 26% of the essential oil composition, respectively. These variations in the essential oil chemical content have subsequently affected its antioxidant properties and enzyme inhibitory activities. In silico investigations showed that hydrophobic interactions and hydrogen bonding were the characteristic binding modes of the bioactive metabolites to their respective targets. Molecular dynamics revealed the stability of the ligand-target complex over time. From the current study we conclude that fresh hexane-extracted essential oil showed the best radical scavenging properties, and fresh rhizomes in general display better enzyme inhibitory activity regardless of the extraction technique.

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GC-MS metabolites profiling of anethole-rich oils by different extraction techniques: antioxidant, cytotoxicity and in-silico enzymes inhibitory insights.

Publications

GC-MS metabolites profiling of anethole-rich oils by different extraction techniques: antioxidant, cytotoxicity and <i>in-silico</i> enzymes inhibitory insights.

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