Article ; Online: Optimization of extraction yield, chemical composition, antioxidant, and antimicrobial activities of Thymus algeriensis Boiss. & Reut essential oils
Biocatalysis and Agricultural Biotechnology. 2023 Jan., v. 47 p.102593-
2023
Abstract: This research focuses on the extraction of the essential oil from aerial part of Thymus algeriensis Boiss. & Reut, collected in flowering (April) and fruiting period (August). It was conducted to optimize the hydro-distillation method to improve the ... ...
Abstract | This research focuses on the extraction of the essential oil from aerial part of Thymus algeriensis Boiss. & Reut, collected in flowering (April) and fruiting period (August). It was conducted to optimize the hydro-distillation method to improve the influence of four factors (time, temperature, plant/water mass ratio, and sampling period) on the yield of essential oil extraction using the full factorial design 2⁴. Statistical treatments with Minitab software showed that the maximum desirability of extraction yield was estimated to be 1.43% under operational conditions: plant collected in flowering period, time = 240 min, temperature = 250 °C, mass/water ratio = 0.25. The extracted essential oils obtained were analyzed by GC/MS. The essential oils consisted of camphor, as the most abundant component (13.59–14.06%), followed by 1, 8-cineole (10.47–13.71%) and α-pinene (6.43–8.55%). Therefore, Thymus algeriensis Boiss. & Reut essential oil collected in April showed slightly higher antioxidant and antimicrobial activity than that collected in August (IC50 = 4.22 ± 0.13 and IC50 = 4.04 ± 0.09 μg/ml, respectively). Antimicrobial study showed that, except for P. aeruginosa, Thymus algeriensis Boiss. & Reut, EOs have a bacteriostatic activity against all the strains tested. The range of inhibition zones and minimal inhibitory concentration values were 11–19 mm and 1.25–5 μL/mL, respectively. |
---|---|
Keywords | Thymus algeriensis ; aerial parts ; agricultural biotechnology ; antibacterial properties ; antioxidants ; biocatalysis ; camphor ; chemical composition ; computer software ; essential oils ; hydrodistillation ; inhibitory concentration 50 ; minimum inhibitory concentration ; temperature ; Thymus algeriensis Boiss. & Reut ; Yield essential oil ; Antioxidant antimicrobial activity |
Language | English |
Dates of publication | 2023-01 |
Publishing place | Elsevier Ltd |
Document type | Article ; Online |
ZDB-ID | 2642052-1 |
ISSN | 1878-8181 |
ISSN | 1878-8181 |
DOI | 10.1016/j.bcab.2022.102593 |
Database | NAL-Catalogue (AGRICOLA) |
More links
Kategorien
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.