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European Pharmaceutical Journal

Acta Facultatis Pharmaceuticae Universitatis Comenianae (formerly)

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2453-6725
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The content of phenolic compounds in underground and aerial parts of different Mentha species

S. Fialová
  • Faculty of Pharmacy, Department of Pharmacognosy and Botany, Comenius University in Bratislava
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ D. Tekeľová
  • Faculty of Pharmacy, Department of Pharmacognosy and Botany, Comenius University in Bratislava
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ D. Grančai
  • Faculty of Pharmacy, Department of Pharmacognosy and Botany, Comenius University in Bratislava
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2012-08-13 | DOI: https://doi.org/10.2478/v10219-012-0013-9

The content of phenolic compounds in underground and aerial parts of different Mentha species

Mentha L., the genus belonging to family Lamiaceae, subfamily Nepetoidae, has high commercial importance in the pharmacy as well as in food industry. Mints are available in all five continents and are important sources of each traditional medicine in the prevention and therapy of plenty of diseases. The most active compounds are essential oil and polyphenols. In the past the secondary metabolites in aerial parts were examined, but there is no evidence about the determination of secondary metabolites in underground parts of mints. Therefore the object of this work was to determine the content of phenolic compounds (total hydroxycinnamic derivatives (THD) and flavonoids) of methanol extracts of rhizomes of different Mentha L. and their comparison with leaves extracts. The contents of secondary metabolites were determined using spectrophotometric methods of Slovak Pharmacopoeia. We have detected similar quantities of THD in leaves (0.79 - 2.48 %) and rhizomes (0.96 - 2.18 %), but underground parts were poor in content of flavonoids (< 0.1 %). The free radical scavenging activity using DPPH free radical was investigated as well. A bit stronger antioxidant activity was shown in leaves extracts considering flavonoids content.

Obsah Fenolových Látok v Nadzemných a Podzemných Častiach Rôznych Druhov Rodu Mentha

Mentha L. z čeľade Lamiaceae, podčeľade Nepetoidae, má vysoký komerčný význam vo farmácii, ako aj v potravinárskom priemysle. Mäty sa nachádzajú na všetkých piatich kontinentoch a sú dôležitým súčasťou každej tradičnej medicíny v prevencii a pri liečenie rôznych ochorení. Účinnými zložkami sú silica a fenolové látky. V minulosti boli sekundárne metabolity skúmané najmä v nadzemných častiach, avšak neuvádza sa stanovenie sekundárnych metabolitov v podzemných častiach mäty. Predmetom tejto práce bolo preto stanovenie obsahu fenolových látok (celkové hydroxyškoricové deriváty (THD) a flavonoidy) v metanolových extraktoch podzemkov rôznych druhov rodu Mentha L. a ich porovnanie s extraktmi z listov. Obsah sekundárnych metabolitov sa stanovil použitím spektrofotometrických metód Slovenského liekopisu. Zistili sme približne rovnaký obsah THD v listoch (0,79 - 2,48 %) a podzemkoch (0,96 - 2,18 %), avšak podzemné časti neobsahovali takmer žiadne flavonoidy (< 0,1%). Súčasťou práce bolo aj stanovenie antioxidačnej aktivity použitím DPPH voľného radikálu. Silnejšia antioxidačná aktivita sa zaznamenala v extraktoch z listov, pravdepodobne vďaka vyššiemu obsahu flavonoidov.

Keywords: Mentha; Rhizomes; flavonoids; THD; scavenging activity (DPPH)

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About the article


Published Online: 2012-08-13

Published in Print: 2012-01-01


Citation Information: Acta Facultatis Pharmaceuticae Universitatis Comenianae, ISSN (Print) 0301-2298, DOI: https://doi.org/10.2478/v10219-012-0013-9.

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