Year 2021, Volume 67, Issue 1 (31.03.2021)

Year : 2021
Volume : 67
Issue : 1 (31.03.2021)
   
Authors : KRIVOKAPIĆ SLAĐANA, PEJATOVIĆ TIJANA
Title : EFFECT OF THE VEGETATION CYCLE ON TOTAL PHENOLIC AND FLAVONOID COMPOUNDS IN Hypericum perforatum L. AND Melissa officinalis L. COLLECTED IN MONTENEGRO
Abstract : Effect of vegetation cycle on total phenolic content (TPC) and total flavonoid content (TFC) in 80% methanolic and 50% ethanoic extracts in wild growing Hypericum perforatum L. and Melissa officinalis L. from different habitats in Montenegro was analyzed. It was found that the type of extraction solvent and the altitude of selected habitats affect the value of the detected TPC and TFC. The highest TPC and TFC values were found in 80% methanolic extract of H1 locality in the month of July (16.66 mgGAE/gDW and 6.91 mgQE/gDW) as well as of M1 locality in the month of August (41.66 mgGAE/gDW and 11.07 mgQE/gDW) while 50% ethanolic extracts showed lower TPC and TFC content. The TPC and TFC values of H. perforatum L. extracts were found to be highly variable in quantity and their dynamics was found irregular, while for the M. officinalis L. extracts the TPC and TFC were found to change in quantity in a regular manner during the plants vegetation cycle with the peak in the flowering stage (August), while the lowest concentration of these bioactive substances was found during fruiting stage (September) which is of the great value for the harvesting time recommendation.
For citation : Krivokapić, S., Pejatović, T. (2021): Effect of the vegetation cycle on total phenolic and flavonoid compounds in Hypericum perforatum L. and Melissa officinalis L. collected in Montenegro. Agriculture and Forestry, 67 (1): 181-190
Keywords : total phenolic content, total flavonoids content, Hypericum L., Melissa L.
   
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ISSN 0554-5579 (Printed)
ISSN 1800-9492 (Online)
DOI : 10.17707/AgricultForest

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