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A peer-reviewed article of this preprint also exists.
† These authors contributed equally to the work.
This version is not peer-reviewed
Submitted:
24 July 2023
Posted:
26 July 2023
You are already at the latest version
Keypoints | References |
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Fennel is cultivated all over the world for its important essential oil and its utilization in different traditional medicine systems. | [14,15,16,17] |
Fennel is a perennial or biennial herb up to two meters high and golden yellow flowers and feathery leaves. | [15,16,17,18] |
Chemical components based on the total essential oil distilled from fennel seeds are (E)-Anethole (trans-anethole), Limonene, Fenchone, α-Pinen, (Z)-β-Ocimene, Estragole (methyl chavicol), Carvone, Myrcene, dimethyl acetal, 1,8-Cineole, p-Anisaldehyde, Sabinene, Camphor, Camphene, γ-Terpinene, (Z)-Anethole (cis-anethole), α-Phellandrene, p-Cymene, exo-Fenchyl acetate, Germacrene D, Carvacrol, β-Pinene, allo-Ocimene, and Terpinen-4-ol. | [36,37,38,39,40,141,142,143,144] |
Fennel seed is a rich source of volatile oil, with fenchone and trans-anethoe as its main ingredients. | [36,37,38,39,40] |
Other components of the essential oil are camphene, limonene, and alpha-pinene. | [36,37,38,39,40] |
Fennel seed with its spicy odor and burning sweet taste has a particular usage in perfumes, condiments, and liqueurs industrial as flavoring agent. | [45,46,47] |
The special health benefits of fennel are because of its antioxidant content. | [45,46,47] |
Aging-related diseases like heart cancer and heart diseases can be prevented by fennel seed oils. | [36,37,38,39,40,41,42] |
The main essential oil components of fennel are trans anethole, fenchone, methyl chavicole (estragole), and limonene. | [36,37,38,39,40,146] |
Fennel essential oil or its natural constituents such as anethole shows various activities like antibacterial, antifungal, and insecticidal activity. | [20,21,22,23,24,25,26,27,122,123] |
Fennel has antioxidant property, anti-inflammatory effect, prophylactic activity, anti-allergic, and antispasmodic and hepatoprotective activity. | [19,20,21,22,23,24,25,26,27,153,154] |
In livestock industries, the notable improvement in chicks body weight and feed effectiveness are obtained by addition of fennel seed to their feed. | [45,46,47,48,49,50] |
The phenolic molecules in fennel have been proved to possess potent antioxidant activity in a number of trials. | [48,49,50] |
Keypoints | References |
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Thyme is the main component of essential oil extracted from Thymus vulgaris belonging to the family of Lamiaceae. | [182,183,184,185,186,187] |
Traditionally, it is used as carminative, anti-septic, stimulant, anti-spasmodic, anaesthetic, and also contains analgesic agent, and anti-oxidant properties. | [188,189] |
The phenolic constituent of volatile oils is hydrophobic in nature, binds the bacterial proteins, breakdown and permeates the cell membrane, effectual anti-fungal component to extend the shelf life of packaged foods. | [190] |
Thyme extracts present neuroprotective, anti-aging and antioxidant activity. | [191] |
Thyme extract present high anti-inflammatory properties with no cytotoxicity. | [191] |
Essential oils of thyme is used for a wide variety of applications, such as to impart fragrance and flavoring to cosmetics and spice mixtures, and as components of pesticides and repellents. | [192] |
Phenolic components, comprising polyphenols and phenols, are the most abundant secondary metabolites in the essential oil and extract of thyme. | [192,193,194] |
Thyme showed significant decline in weight, fasting blood, waist circumference, total cholesterol, triglycerides and low density lipoproteins. | [195] |
Edible coating based on quince seed mucilage loaded with thyme essential oil showed good potential as a coating material for the protection of cheese shelf and quality as well as for enhancing Angiotensin-converting enzyme (ACE)-inhibitory activity. | [196] |
Thyme essential oil has important function in controlling gray mold and Fusarium wilt and inducing systemic acquired resistance in tomato seedlings and tomato grown. | [197] |
Thyme volatile oil loaded with chitosan nanoparticles as an edible coating has a great potential in shelf life extension of some medicinal plant ,s leaves. | [198] |
The essential oil can be used in a variety of pharmaceutical, agro-food, and non-food applications. | [199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214] |
The main health benefits of seeds are anti-inflammatory, antioxidant, antineoplastic, antiviral, antifungal, antibacterial and antiseptic activities. | [215,216,217,218,219,220,221,222] |
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