Variability of essential oil content of Mentha L. taxa

Neugebauerová, J.; Kaffková, K.

doi:10.11118/actaun201260080187

Cited by 3 publications

(1 citation statement)

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“…Water deficit significantly reduces oil yield and alters the oil profile in M. spicata , highlighting the need for controlled growth conditions when comparing the oil of mint cultivars ( Okwany et al, 2012 ). Seasonal variation is reported in overall oil yields ( Neugebauerová and Kaffková, 2013 ; Salim et al, 2014 ), as well as significant affects from fertiliser application and time of planting ( Piccaglia et al, 1993 ; Soltanbeigi et al, 2021 ). Evidence also suggests that rhizobacteria such as Pseudomonas fluorescens , Bacillus subtilis , and Azospirillum brasilense upregulate pulegone and menthone biosynthesis, and so the microbial communities of the fields in which the mint is grown are also relevant considerations.…”

Section: Introductionmentioning

confidence: 99%

Genetic Manipulation of Biosynthetic Pathways in Mint

et al. 2022

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In recent years, the study of aromatic plants has seen an increase, with great interest from industrial, academic, and pharmaceutical industries. Among plants attracting increased attention are the Mentha spp. (mint), members of the Lamiaceae family. Mint essential oils comprise a diverse class of molecules known as terpenoids/isoprenoids, organic chemicals that are among the most diverse class of naturally plant derived compounds. The terpenoid profile of several Mentha spp. is dominated by menthol, a cyclic monoterpene with some remarkable biological properties that make it useful in the pharmaceutical, medical, cosmetic, and cleaning product industries. As the global market for Mentha essential oils increases, the desire to improve oil composition and yield follows. The monoterpenoid biosynthesis pathway is well characterised so metabolic engineering attempts have been made to facilitate this improvement. This review focuses on the Mentha spp. and attempts at altering the carbon flux through the biosynthetic pathways to increase the yield and enhance the composition of the essential oil. This includes manipulation of endogenous and heterologous biosynthetic enzymes through overexpression and RNAi suppression. Genes involved in the MEP pathway, the menthol and carvone biosynthetic pathways and transcription factors known to affect secondary metabolism will be discussed along with non-metabolic engineering approaches including environmental factors and the use of plant growth regulators.

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Section: Introductionmentioning

confidence: 99%

Genetic Manipulation of Biosynthetic Pathways in Mint

et al. 2022

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Phenolic compounds variation in Mentha L. Species in the course of a four-years period / Kolísanie fenolových látok v rôznych druhoch Mentha L. Počas 4 ročného obdobia

Fialová

Tekeľová

Rendeková

et al. 2015

Acta Facultatis Pharmaceuticae Universitatis Comenianae

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Mints rank among the most important Lamiaceae plants. In addition to essential oil, they contain many valuable phenolic compounds, including flavonoids and phenolic acids that participate in mints’ pharmacological properties. In this work, we examined the contents of phenolic compounds variation in the course of 4 years of vegetation. We compared the contents of total hydroxycinnamic derivatives expressed as rosmarinic acid (λ = 505 nm), total polyphenols and tannins expressed as rosmarinic acid (λ = 760 nm), and flavonoids expressed as luteolin-7-O-glucoside (λ = 392 nm) and quercetin (λ = 420 nm) in 1-, 2-, 3-, and 4-year-old plants’ dry leaves, respectively. Spectrophotometric methods of the European Pharmacopoeia were employed. Our results show high levels of active phenolic compounds, particularly in 3- and 4-year-old plants.

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The variability of secondary metabolites in mentha × piperita cv . ‘perpeta’ during the development of inflorescence

Fialová

Tekeľová

Švajdlenka

et al. 2014

Acta Facultatis Pharmaceuticae Universitatis Comenianae

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Mints (Mentha L., Lamiaceae) are known and classified as aromatic plants with high content of essential oil (EO) and are famous medical plants in traditional and conventional medicine all over the world. Mentha × piperita, the best known mint, is used chiefly for the treatment of gastrointestinal disorders. Peppermint has also shown strong antimicrobial, antiviral, antioxidant activity and seems to have an antitumour, immunomodulating, antiallergic and chemoprotective potential (Mckay & Blumberg, 2006;Košťálová et al.;. The pharmacological effects of mints are chiefly because of the presence of two main groups of secondary metabolites: EO and phenolic compounds. EO of mints is composed of monoterpenes and sesquiterpenes, the content of which varies from species to species. The main phenolic compounds in mints are phenolic acids (especially rosmarinic acid) and flavonoids (eriodictyol, luteolin, apigenin and their glycosides). In the Mentha × piperita (L.) Huds. of the family Lamiaceae is a very important species for commercial exploitation due to the high content of essential oil. Besides the essential oils, there are also other significant secondary metabolites in peppermint, especially flavonoids and hydroxycinnamic derivatives. In this study, we evaluate the variability of essential oil constituents and of phenolic compounds in the leaves of M. × piperita during the development of inflorescence. Similar studies, dealing with the variation of the essential oils and its composition, have been performed in the past, but no attention was paid to the variation of other secondary metabolites. We examined M. × piperita cv. 'Perpeta' , the domestic cultivar. The plants were cultivated in the climatic conditions of south-west Slovakia. The contents of secondary metabolites were investigated in the week periods, from the beginning of inflorescence formation to the end of flowering. The yield and the quality of essential oil have been carried out by distillation and gas chromatography mass spectrometry (GC-MS). The phenolic substances were analysed using spectrophotometric methods according to European Pharmacopoeia. The highest contents of phenolic substances have been found in leaves of plants during the flowering phenophase, the same stage when essential oil of mint also achieves the highest quality.

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Variability of essential oil content of Mentha L. taxa

Cited by 3 publications

References 5 publications

Genetic Manipulation of Biosynthetic Pathways in Mint

Genetic Manipulation of Biosynthetic Pathways in Mint

Phenolic compounds variation in Mentha L. Species in the course of a four-years period / Kolísanie fenolových látok v rôznych druhoch Mentha L. Počas 4 ročného obdobia

The variability of secondary metabolites in mentha × piperita cv . ‘perpeta’ during the development of inflorescence

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