Characterization, antimicrobial activity, and antioxidant activity of the nanoemulsions of Lavandula spica essential oil and its main monoterpenes

Badr, Mai M.; Badawy, Mohamed E. I.; Taktak, Nehad E. M.

doi:10.1016/j.jddst.2021.102732

Cited by 31 publications

(25 citation statements)

References 59 publications

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“…The antifungal results of all the essential oil samples in our study were similar to the results of previous research [49]. The monoterpenes of the volatile oils were mainly terpene hydrocarbons that have antimicrobial activity [50][51][52][53]. These monoterpene hydrocarbons inhibit both bacteria and fungi via interference with spore germination and mycelia growth [54][55][56].…”

Section: Anti-fungal Activity Of Essential Oilsupporting

confidence: 87%

Chemical Composition and Anti-Microbial Activity of Hog Plum (Spondias mombin L.) Peel Oil Extracted from Different Regions of Tropical Climates

et al. 2021

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The hydro-distilled essential oil of hog plum peel may be used for enhancing the flavor and taste of food products as well as for hiding the unpleasant odor of drugs. Thus, the waste peels of Spondias mombin appear to have economic importance. To find out the chemical composition and anti-microbial properties of hog plum peel oil, the samples were collected from different regions of Bangladesh for extraction and identification of volatile compounds by GC-MS, where dichloromethane was used as an extraction solvent. The required standard analytical methods were used to assay the anti-microbial properties of hog plums. In this study, pentenyl-3-thy-met-4-alpha-methyl-alpha-ethanol-oxiranen (29.04%), (3,3.1,1)-4-dimethylethyl-1,1-phenol (8.00%), cycohexanol-3 (10.85%), 4-hydroxy-penzeneethanamine (7.09%), hydroxylamine (4.63%), dibutyl phthalate (6.85%), etc., were majorly determined. Consequently, the highest content of 75.81% volatile compounds was found in the Dinajpur district, where the lowest content of 35.00% was found in the Rajshahi district. In contrast, 33 volatile compounds were identified in hog plum peels collected from the Barishal district, whereas 22 compounds were detected in the peel samples collected from the Dinajpur district. In addition, the antimicrobial activity of the oil was analyzed by the disk diffusion method, and the results revealed that the highest Ciprocin content was recorded in the hog plums of Barishal (22.0–23.0 mm), while the lowest was recorded in the Mymensingh sample (20.67–21.63 mm), which was on par with Rajshahi sample (20.70–21.50 mm). The results of the anti-fungal activities of the peel oil showed the highest zone of inhibition against the Aspergillus niger (11.63 ± 0.0003 mm) and Penicillium oxalicum (13.67 ± 1.97 mm) content of the Rajshahi and Pabna district samples, respectively.

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Section: Anti-fungal Activity Of Essential Oilsupporting

confidence: 87%

Chemical Composition and Anti-Microbial Activity of Hog Plum (Spondias mombin L.) Peel Oil Extracted from Different Regions of Tropical Climates

et al. 2021

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“…Phenolic content estimation was determined following the Folin-C method as previously described [ 9 , 20 , 21 ]. A standard curve was finally produced using tannic acid solutions ranging from 10 to 80 mg/L ( r 2 = 0.9902).…”

Section: Methodsmentioning

confidence: 99%

“…Phenolic content estimation was determined following the Folin-C method as previously described [9,20,21].…”

Section: Determination Of the Total Phenolic Content Of Propolis-extr...mentioning

confidence: 99%

“…Studies have reported that one of the promising ways to promote the efficacy of herbal extracts is to incorporate them into nanostructures [8][9][10]. Therefore, nanostructured lipid carriers (NLCs) are novel drug delivery systems based on blends of lipids with nanoscale, high surface area to volume ratio that facilitates the cellular uptake of products overcomes the skin barrier restrictions, targets the epidermis, and reduces systemic absorption side effects [11].…”

Section: Introductionmentioning

confidence: 99%

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Comparative evaluation of propolis nanostructured lipid carriers and its crude extract for antioxidants, antimicrobial activity, and skin regeneration potential

Elkhateeb

Badawy

Noreldin

et al. 2022

BMC Complement Med Ther

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Background Propolis extracted from beehives has been conferred with natural antimicrobial and antioxidant properties. Hence, it has been recommended as a wound healing therapy. This study investigated the additive value of nanotechnology to the herbal extract, (propolis rebuts), after which we examined its efficacy in wound healing. Methods Propolis nanostructured lipid carriers (NLCs) were first prepared using the emulsion-evaporation-solidification method at three concentrations. Then, we compared their flavonoid and phenolic contents and phenolic contents. Their antioxidant, antibacterial, and antifungal effects were also investigated after which, the skin regenerative capacity of propolis-NLCs was assessed using full-thickness skin wounds in rabbits. Results This study showed that propolis-NLCs had increased the phenolic and flavonoid contents compared to the raw propolis extract (EXTR) (9-fold and 2-fold, respectively). This increase was reflected in their antioxidant activities, which dramatically increased by 25-fold higher than the propolis-EXTR. Also, propolis-NLCs exhibited a 2-fold higher potent inhibitory effect than propolis-EXTR on Gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus), Gram-negative bacterium (Salmonella spp.), and fungus (Candida albicans) microbes (p < 0.0001). Investigations also revealed that treatment of full-thickness skin injuries with propolis-NLCs resulted in significantly higher wound closure compared to propolis-EXTR and the control after two weeks (p < 0.0001). Conclusion With a prominent broad-spectrum antibacterial effect propolis-NLCs exhibited higher skin regenerative potency than propolis-EXTR. We also highlighted the additive impact of nanotechnology on herbal extract, which accounted for the increased flavonoid content and hence a better antioxidant and antimicrobial effect and propose it as a potential therapy for wound healing.

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“…De Sousa et al (2012 reported that 1,8-cinelole was effective in inhibiting Grampositive and Gram-negative bacteria supporting the observations of other researchers about the efficacy of 1,8-cineole-in inhibiting the growth of gram-negative and gram-positive bacteria. Badr et al (2021) found that α-terpinyl acetate and lavender EO containing α-terpinyl acetate in concentrations of 13.99 % had better antimicrobial activity against gram-positive than gram-negative bacteria; and α-terpinyl acetate had superior activity than lavender EO. Those results are in agreement with the results obtained for LR fraction, which has more quantity of α-terpinyl acetate than LEO and LD.…”

Section: Minimum Bactericidal Concentration (Mbc)mentioning

confidence: 98%

Fractions of laurel essential oil obtained by molecular distillation with greater antioxidant and antimicrobial activities

Jacobo

Carezzano

Quiroga

et al. 2022

AgriS

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This study aimed to analyze the chemical composition and the antioxidant and antimicrobial activities of Laurus nobilis L. essential oil (LEO) and its fractions obtained by short-path molecular distillation. According to the chemical composition, it can be said that LEO and its fractions proved to have antioxidant activity sinceboth have a high content of total phenolic content (TPC). Short-path molecular distillation was used to separate essential oil fractions with superiorantioxidant activity. Laurel residue (LR) exhibited the greatest antioxidant activity, with higher values of trolox equivalent antioxidant capacity with ABTS radical cation (TEAC-ABTS) assay and TPC. In addition, LR had the lowest value of IC50-DPPH. For antimicrobial activity, all natural products tested had an effect on all foodborne pathogenic microorganisms. LEO, as well as its fractions, showed antimicrobial, bacteriostatic, or bactericidal activity against Gram-positive and Gram-negative bacteria. The LEO and its fractions obtained by molecular distillation can be used as antimicrobials and as food preservatives to prevent oxidation. Also, consumers considered the addition of LEO or its fractions in food products as positive.

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Characterization, antimicrobial activity, and antioxidant activity of the nanoemulsions of Lavandula spica essential oil and its main monoterpenes

Cited by 31 publications

References 59 publications

Chemical Composition and Anti-Microbial Activity of Hog Plum (Spondias mombin L.) Peel Oil Extracted from Different Regions of Tropical Climates

Chemical Composition and Anti-Microbial Activity of Hog Plum (Spondias mombin L.) Peel Oil Extracted from Different Regions of Tropical Climates

Comparative evaluation of propolis nanostructured lipid carriers and its crude extract for antioxidants, antimicrobial activity, and skin regeneration potential

Fractions of laurel essential oil obtained by molecular distillation with greater antioxidant and antimicrobial activities

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