Chemical Screening of Phenolic Compounds in Tansy Leaves Wild Growing in Different Conditions

Activity: Talk or presentation types › Oral presentation

Description

Tansy leaves have a diverse range of phytochemicals including phenolic compounds, some with notable medicinal properties. It is known that Tansy plants have several chemotypes depending on the growth location. In this context, the main objective of this work was to evaluate the influence of sampling location on chemical composition. The aims of this study were the determination of the polyphenolic profile of Tanacetum vulgare L. (tansy) and the evaluation of chemical composition dependence on sampling location. Leaves from tansy plants collected in different regions of Latvia and their ethanolic extracts were chemically characterized, revealing chemical variability regarding to phenolic compounds and thujone content.. The tansy leaves were extracted by aqueous ethanol (50% v/v) using an orbital shaker. The yields of extractives were determined gravimetrically after freeze-drying. Spectrophotometry and liquid chromatography was used for chemical analyses.. The variability of total phenolic was from 31 GAE/g (Ventspils) up to 56 mg GAE/g (Ludza) and thujone 0–3.0%. These results indicate that the accumulation of phenolic compounds and characteristic toxic compound thujone in Tansy leaves depends on the plant material origin. The highest extraction yield of the extract was up to 20% (w/w). The chemical profile of tansy leaves is dependent on sampling location, the extracts from Tansy growing in Ventspils are richer with phenolic acids (21 mg CAF/g), but the extracts obtained from Ludzas samples contain more flavonoids (28 mg QE/g. The major constituents identified as oligomeric proanthocyanidins, chlorogenic acid, apigenin, and its glycoside, quinic acid, rutin, and kaempferol.. We conclude that the sampling location (Latvian regions) is important for the outcome of phenolics (differences almost two times) and for the content of thujones, which can be toxic. It has been shown that the tansy leaves are a potential source for the obtaining of biologically active phenolic agents.
Period29 Mar 2023
Event titleRSU International Research Conference 2023: Knowledge for Use in Practice
Event typeConference
OrganiserRīga Stradiņš University
LocationRiga, LatviaShow on map
Degree of RecognitionInternational

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