UV-A effects on photomorphogenesis and essential-oil composition in Mentha piperita

Maffei, Massimo E.; Cánova, Diaz; Bertea, Cinzia M.; Scannerini, Silvano

doi:10.1016/s1011-1344(99)00110-4

Cited by 54 publications

(28 citation statements)

References 27 publications

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“…This phenomenon was also reported for other shaded plants 22,28,29 . The analysis of the images taken by the confocal microscope suggests that chlorophyll concentration may have been modified in part by changes in the production levels of chloroplasts, and by chlorophyll content within the chloroplasts.…”

Section: Discussionsupporting

confidence: 85%

Shade Effects on Leaf Production and Essential Oil Content and Composition of the Novel HerbEucalyptus citriodoraHook.

Degani

Dudai

Bechar

et al. 2016

Journal of Essential Oil Bearing Plants

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The influence of light conditions on plant growth and essential oil production of the novel herb Eucalyptus citriodora (Lemon-Scented Gum) was investigated. Pot-grown plants were grown either directly exposed to sunlight or 'shaded' with the least exposure to sunlight (75 % shade) or with intermediate exposure to sunlight (50 % shade). Shaded plants were generally taller, had thicker stems and wider canopies, grew more branches, produced larger leaves, produced more essential oils per plant, produced similar concentrations of the major essential oil components (citronellal, β-citronellol and trans-caryophyllene) in the leaves and produced record high concentrations of (±)-p-menthane-3,8-diol, a component having superior insect repellent properties, than the ones grown under full sun. Plants grown under '50% shade' were likely to be the most productive of leaves and essential oils, either for personal use in tea infusions or for production of leaf-essential oils, potentially having improved capacity for insect repellency.

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Section: Discussionsupporting

confidence: 85%

Shade Effects on Leaf Production and Essential Oil Content and Composition of the Novel HerbEucalyptus citriodoraHook.

Degani

Dudai

Bechar

et al. 2016

Journal of Essential Oil Bearing Plants

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“…Estudos sobre a influência da radiação UV-B e a luz fotossinteticamente ativa no teor de monoterpenos do óleo essencial de folhas de hortelã-pimenta foram Maffei et al (1999), a composição química do óleo de hortelã-pimenta é fortemente influenciada por fatores ambientais. Estes autores observaram redução de 65% no teor de mentol na luz azul e aumento de cerca de 2,3 vezes no teor de mentofurano, em comparação à luz branca.…”

Section: Resultsunclassified

Crescimento vegetativo e produção de óleo essencial de hortelã‑pimenta cultivada sob malhas

Costa

Chagas²,

Pinto

et al. 2012

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o crescimento vegetativo e o teor, o rendimento e a composição química do óleo essencial de hortelã-pimenta (Mentha piperita) cultivada sob diferentes malhas, no Município de Lavras, MG. As mudas de hortelã-pimenta foram cultivadas em cinco ambientes: pleno sol, malha preta, malha aluminizada, malha azul e malha vermelha, todas com 50% de irradiância. Utilizou-se o delineamento experimental inteiramente casualizado, com quatro repetições e cinco plantas por parcela. Foram avaliados os parâmetros: crescimento vegetativo, teor, rendimento e análise química do óleo essencial. Plantas de hortelã-pimenta cultivadas em pleno sol e sob malhas preta e vermelha produziram maior biomassa seca de folhas e maiores teores e rendimentos do óleo essencial. Entretanto, a pleno sol, o óleo essencial das plantas apresentou maior teor de mentol e, sob as malhas preta e azul, de mentofurano. Portanto, é possível manipular o crescimento das plantas e a produção e a composição química do óleo essencial de hortelã-pimenta mediante o cultivo sob malhas ou pleno sol.Termos para indexação: Mentha piperita, mentol, mentona, qualidade da luz, radiação. Vegetative growth and yield of essential oil of peppermint grown under netsAbstract -The objective of this work was to evaluate the growth and the content, yield, and chemical composition of the essential oil of peppermint (Mentha piperita) grown under different nets in Lavras, MG, Brazil. Peppermint plants were grown in five environments: full sun, black net, aluminet net, blue net, and red net, all with 50% of irradiance. The experimental design was a completely randomized block with four replicates and five plants per plot. The evaluated parameters were: vegetative growth, content, yield, and chemical analysis of the essential oil. Peppermint plants grown under full sun and black and red nets produced higher dry leaf biomass and higher essential oil content and yield. However, in full sun, the essential oil of the plants had higher contents of menthol and, under black and blue nets, of menthophurane. Therefore, it is possible to manipulate plant growth and yield and chemical composition of the essential oil of peppermint with cultivation under nets or full sun.

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“…An accumulation of monoterpene alcohols and ketones was observed during the fruit ripening process. UV-A radiation (360 nm) has the same effect on EO chemical composition [70].…”

Section: Extraction-compositionmentioning

confidence: 98%

Use of Essential Oils in Bioactive Edible Coatings: A Review

et al. 2011

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Antimicrobial and antioxidant properties of essential oils have previously been extensively reviewed. The mechanisms of action of essential oils have not been clearly identified but they seem to be related with their hydrophobic nature. Applying these natural compounds in the food industry could be a potential alternative, but its application costs and other problems, such as their intense aroma and potential toxicity, limit their use in the area of food preservation. An interesting strategy to reduce doses of essential oils while maintaining their effectiveness could be the incorporation of these natural compounds into edible/biodegradable films. This review discusses the use of essential oils as natural antimicrobial and antioxidant compounds to obtain bioactive films or coatings. The advantages and limitations are also reviewed.

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UV-A effects on photomorphogenesis and essential-oil composition in Mentha piperita

Cited by 54 publications

References 27 publications

Shade Effects on Leaf Production and Essential Oil Content and Composition of the Novel HerbEucalyptus citriodoraHook.

Shade Effects on Leaf Production and Essential Oil Content and Composition of the Novel HerbEucalyptus citriodoraHook.

Crescimento vegetativo e produção de óleo essencial de hortelã‑pimenta cultivada sob malhas

Use of Essential Oils in Bioactive Edible Coatings: A Review

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