Larvicidal activity against <i>Aedes aegypti</i> of essential oil of <i>Laurus nobilis</i> leaves obtained at different seasons

Fernandez, Carla Maria Mariano; Rosa, Mauricio Ferreira da; Fernandez, Ana Claudia Aparecida Mariano; Lorenzetti, Fabiana Brusco; Raimundo, Keila Fernanda; Cortez, Diógenes Aparı́cio Garcia; Gonçalves, José Eduardo; Simões, Márcia Regina; Colauto, Nelson Barros; Lobo, Viviane da Silva; Gazim, Zilda Cristiani

doi:10.1080/10412905.2018.1473294

Cited by 13 publications

(11 citation statements)

References 30 publications

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“…In the L aqueous extract, 1,8-cineole (34.61%), linalool (17.75%) and methyl eugenol (14.43%) were the major compounds. These results confirmed the compounds mentioned above as the main constituents of laurel hydrolate [ 64 , 93 ] and essential oil [ 94 , 95 ] in varying amounts. It is considered that methyl eugenol is a limiting factor that allows the use of laurel essential oil in food applications [ 96 ] and, along with linalool, exhibits antioxidant, antimicrobial, anti-inflammatory and anticancer properties [ 94 , 97 , 98 , 99 , 100 , 101 , 102 ] and various effects on the central nervous system [ 98 , 103 , 104 ].…”

Section: Resultssupporting

confidence: 86%

Non-Volatile and Volatile Bioactives of Salvia officinalis L., Thymus serpyllum L. and Laurus nobilis L. Extracts with Potential Use in the Development of Functional Beverages

et al. 2022

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Functional beverages based on herbal extracts are highly demanded products due to the presence of bioactives with promising health benefits and interesting and characteristic sensory properties. Mediterranean medicinal and aromatic herbs contain a wide range of bioactives (non-volatile polyphenols, volatile terpenes) that are important constituents of herbal extracts and essential oils. The antioxidant capacity and potential health benefits of these bioactives could be associated with their synergistic effects. Therefore, this study aimed to characterize the non-volatile and volatile bioactives of sage (Salvia officinalis L.), wild thyme (Thymus serpyllum L.) and laurel (Laurus nobilis L.) aqueous extracts and their two- and three-component mixtures as well as their antioxidant capacity. The content of total phenols, flavonoids, hydroxycinnamic acids and flavonols was determined spectrophotometrically. Individual polyphenols were analyzed by LC-MS/MS, the volatiles were analyzed by HS-SPME/GC-MS, and the antioxidant capacity was analyzed by ORAC and DPPH assays. The results showed that aqueous extracts of all examined herbs and their mixtures contained a high content of phenolic compounds ranging from 0.97 to 2.79 g L−1 of the sample, among which the most common were flavonols. At the same time, mono- and sesquiterpenes were the main volatiles. All extracts showed high antioxidant capacity, especially L. nobilis (781.62 ± 5.19 μmol TE mL−1 of the sample in the DPPH assay; 1896.10 ± 8.77 μmol TE mL−1 of the sample in the ORAC assay) and the two-component mixture of L. nobilis and T. serpyllum (679.12 ± 5.19 μmol TE mL−1 in the DPPH assay; 1913.38 ± 8.77 μmol TE mL−1 in the ORAC assay). Mixtures of herbal extracts have been shown to possess additive or synergistic effects, consequently contributing to higher antioxidant capacity. Therefore, two-component mixtures of herbal extracts showed promising potential for the production of functional beverages.

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Section: Resultssupporting

confidence: 86%

Non-Volatile and Volatile Bioactives of Salvia officinalis L., Thymus serpyllum L. and Laurus nobilis L. Extracts with Potential Use in the Development of Functional Beverages

et al. 2022

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“…In addition, a factor that influences the differences in activities is the season. Previous studies (Fernandez et al, 2014;Fernandez et al, 2018) have shown that the larvicidal activity assessed in the spring and autumn seasons is greater compared to winter and summer.…”

Section: Discussionmentioning

confidence: 90%

Chemical composition and larvicidal activity of the essential oil of Pimenta dioica leaves

Gomes¹,

Marinho²,

Everton³

et al. 2022

BLACPMA

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In this study, we investigated the main constituent, the predominant class and biological activity of the essential oil extracted from the leaves of Pimenta dioica and the pattern of the major constituent against larvae in the third stage of Aedes aegypti. For this reason, we extracted the oil by hydrodistillation, identified its components by gas chromatography coupled with mass spectrometry (GC/MS) and calculated the lethal concentration (LC50) of the larvicidal activity using the Reed-Muench method. The results show that the oil consists mainly of eugenol, in which the phenylpropanoid class predominated and the lethal concentration, LC50, was 38.86 μg mL-1at a confidence level of 2.25 μg mL-1, while the eugenol standard presented LC5079.75 μg mL-1at a confidence level of 2.10 μg mL-1. Given the facts, we conclude that the oil is more active than the standard and that it has the potential to replace chemical larvicides.

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“…In our study, the collection and extraction of the oil occurred in the month of August, whose season is winter. In a study of the larvicidal activity of essential oils of the leaves of Laurus nobilis and Tetradenia riparia showed higher activity in the spring season and low in the other seasons [22,23]. Therefore, several factors may influence the bioactivity of essential oil.…”

Section: Discussionmentioning

confidence: 99%

Chemical composition and biological activity of the essential oil of the fruits Pimenta dioica against formae speciales of fungus Fusarium oxysporum

Gomes¹,

Barros²,

Reis³

et al. 2020

Rev. Colomb. Cienc. Quím. Farm.

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We determined the chemical composition and explored the hypothesis that the essential oil of the fruits of Pimenta dioica inhibits the mycelial development of fungi Fusarium oxysporum f. sp. lycopersici, F. oxysporum f. sp. passiflorae, F. subglutinans f. sp. ananas , F. oxysporum f. sp. vasinfectum e F. oxysporum f. sp. Cubense. To do this, we extracted the oil by hydrodistillation, identified its components by gas chromatography coupled to mass spectrometry (GC-MS) and determined the fungal activity against five special forms of Fusarium species. The results showed that the oil had 76.88% of eugenol and inhibited the mycelial development of fungi up to 97.78% in an average of 7.2 days. Therefore, oil is a potential natural fungicide.

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Larvicidal activity against Aedes aegypti of essential oil of Laurus nobilis leaves obtained at different seasons

Cited by 13 publications

References 30 publications

Non-Volatile and Volatile Bioactives of Salvia officinalis L., Thymus serpyllum L. and Laurus nobilis L. Extracts with Potential Use in the Development of Functional Beverages

Non-Volatile and Volatile Bioactives of Salvia officinalis L., Thymus serpyllum L. and Laurus nobilis L. Extracts with Potential Use in the Development of Functional Beverages

Chemical composition and larvicidal activity of the essential oil of Pimenta dioica leaves

Chemical composition and biological activity of the essential oil of the fruits Pimenta dioica against formae speciales of fungus Fusarium oxysporum

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