Seasonal variation in essential oil content and chemical profile of mint in southeast of Brazil

Alvarenga, Joyce Pereira; Braga, Andreísa Flores; Pacheco, Fernanda Ventorim; Carvalho, Alexandre Alves de; Pinto, José Eduardo Brasil Pereira; Bertolucci, Suzan Kelly Vilela

doi:10.1590/0103-8478cr20200979

Cited by 5 publications

(4 citation statements)

References 27 publications

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“…Once a plant's composition changes, its biological activity can also change. [6] Hence, this is an essential subject that needs to be assessed for EO production and its application. Recent studies have demonstrated the seasonal influences on the biosynthesis and chemical composition of EO.…”

Section: Introductionmentioning

confidence: 99%

“…When working with medicinal plants, it is important to know that the EO chemical composition can change significantly due to different variables, such as environmental conditions and plant phenology. Once a plant's composition changes, its biological activity can also change [6] . Hence, this is an essential subject that needs to be assessed for EO production and its application.…”

Section: Introductionmentioning

confidence: 99%

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Annual Phytochemical Variations and Antioxidant Activity within the Aerial Parts of Lavandula angustifolia, an Evergreen Medicinal Plant

Najafian

Afshara

Radi

2022

Chemistry & Biodiversity

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Acknowledging the importance of medicinal compounds, flavonoids, and phenolic acids in plants and human health; understanding the best time to harvest plants to get the most potentially therapeutic biological activity; and predicting and controlling the quality of medicinal plants are very useful. The rich chemical composition of medicinal lavender, as well as its antioxidant activity, has led to its wide application in the pharmaceutical, cosmetic, and food industries. In the current research, seasonal differences in phenolic content; the main constituents of essential oil, essential oil yield, and antioxidant activity; and flavonoid content were evaluated. In this investigation, for all the investigated factors, three replications were considered as completely randomized designs. The predominant natural components were α-pinene, camphene, 1,8-cineole, limonene, camphor, borneol, cryptone, isobornyl formate, cumin aldehyde, carvone, caryophyllene oxide, and epi-α-cadinol. The highest rate of 1,8-cineole was seen in summer, while camphor and borneol showed their highest percentages in the cold season. Some of the compounds such as caryophyllene oxide, isobornyl formate, and cumin aldehyde showed their highest amounts in the spring with the activation of some important plant enzymes such as peroxidase. The total content of flavonoids and some phenolic compounds (coumarin and p-coumaric acid) increased when plants received sunlight for a longer time than in the colder to warmer seasons. On the other hand, increases in chlorogenic acid and vanillin were observed in spring. Also, the highest antioxidant activity was observed in lavender, which was accompanied by an increase in the important phenolic composition of rosmarinic acid in the cold season. Generally, this investigation provides beneficial evidence about the most appropriate harvest time for lavender to produce the most favorable constituents for optimization in food, pharmaceutical, and herbal products.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Annual Phytochemical Variations and Antioxidant Activity within the Aerial Parts of Lavandula angustifolia, an Evergreen Medicinal Plant

Najafian

Afshara

Radi

2022

Chemistry & Biodiversity

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“…EO are industrially important natural products of aromatic plants [ 23 ]. It is well known that EO yield significantly varies with the season [ 24 , 25 , 26 ]. Indian blackberry leaf EO was obtained during winter and spring seasons.…”

Section: Resultsmentioning

confidence: 99%

Seasonal Variation, Fractional Isolation and Nanoencapsulation of Antioxidant Compounds of Indian Blackberry (Syzygium cumini)

et al. 2021

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Indian blackberry (Syzygium cumini L.) is an evergreen tree in the Myrtaceae family. It is used in traditional medicine due to its significant bioactivities and presence of polyphenols with antioxidant activities. The present study describes the effect of seasonal variations on Indian blackberry leaf essential oil yield and chemical composition, production of fractions from essential oil using high vacuum fractional distillation and slow cooling to low temperature (−50 °C) under vacuum, and bioactivities of the essential oil, fractions, and nanoparticles. The results show that Indian blackberry essential oil yield was higher in spring season as compared to winter season. Indian blackberry essential oil fractionation processes were effective in separating and concentrating compounds with desired bioactivities. The bioactivities shown by magnesium nanoparticles were comparatively higher than barium nanoparticles.

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“…Studies conducted on various plant species have shown that the accumulation of specialised metabolites depends on various environmental factors, including temperature, light, and soil moisture [14]. In the higher plant studied so far, such as Thymus [15], Rosmarinus [16,17], Helichrysum [18], Mentha [19], and Eugenia patrisii [20], variability in quantity or composition of essential oil content related to the season or different environmental conditions has also been demonstrated. Similarly, seasonal changes in the composition of volatile organic compounds (VOCs) were observed in one of the species of the genus Calypogeia, that is, in the previously analysed Calypogeia azurea [21].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variability of Volatile Components in Calypogeia integristipula

Wawrzyniak,

Guzowska,

Wasiak

et al. 2023

Molecules

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Liverworts contain a large number of biologically active compounds that are synthesised and stored in their oil bodies. However, knowledge about the chemical composition of individual species is still incomplete. The subject of the study was Calypogeia integristipula, a species representing leafy liverworts. Plant material for chemotaxonomic studies was collected from various locations in Poland. The chemical composition was determined in 74 samples collected from the natural environment in 2021 and 2022 in three growing seasons: spring, summer and autumn, and for comparison with samples originating from in vitro culture. The plants were classified as Calypogeia integristipula on the basis of morphological characteristics, oil bodies, and DNA markers. The volatile organic compounds (VOCs) from the biological material were extracted by headspace solid phase microextraction (HS-SPME). The samples were then analysed by gas chromatography–mass spectrometry (GC-MS). A total of 79 compounds were detected, of which 44 compounds were identified. The remaining compounds were described using the MS fragmentation spectrum. Cyclical changes in the composition of compounds associated with the growing season of Calypogeia integristipula were observed. Moreover, samples from in vitro culture and samples taken from the natural environment were shown to differ in the composition of chemical compounds. In terms of quantity, among the volatile compounds, compounds belonging to the sesquiterpene group (46.54–71.19%) and sesqiuterpenoid (8.12–22.11%) dominate. A smaller number of compounds belong to aromatic compounds (2.30–10.96%), monoterpenes (0.01–0.07%), monoterpenoids (0.02–0.33%), and aliphatic hydrocarbons (1.11–6.12%). The dominant compounds in the analysed liverworts were: anastreptene (15.27–31.14%); bicyclogermacrene (6.99–18.09%), 4,5,9,10-dehydro-isolongifolene (2.00–8.72%), palustrol (4.95–9.94%), spathulenol (0.44–5.11%).

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Seasonal variation in essential oil content and chemical profile of mint in southeast of Brazil

Cited by 5 publications

References 27 publications

Annual Phytochemical Variations and Antioxidant Activity within the Aerial Parts of Lavandula angustifolia, an Evergreen Medicinal Plant

Annual Phytochemical Variations and Antioxidant Activity within the Aerial Parts of Lavandula angustifolia, an Evergreen Medicinal Plant

Seasonal Variation, Fractional Isolation and Nanoencapsulation of Antioxidant Compounds of Indian Blackberry (Syzygium cumini)

Seasonal Variability of Volatile Components in Calypogeia integristipula

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