Determination of Volatile Compounds And Antioxidant Properties Of Endemic Natural Mountain Tea (Sideritis spp.) Taxa Of Geyik Dağı (Central Taurides, Türkiye)

Ramazan UĞUR, Hüseyin FAKİR

Abstract


In this study, the volatile components and antioxidant properties of the endemic Sideritis libanotica subsp. linearis (Benth.) Bornm., Sideritis libanotica subsp. libanotica, and Sideritis phrygia Bornm. taxa naturally distributed in Geyik Dağı (Gündoğmuş/Antalya) were determined. Fifty-six, forty-six, and seventy-two volatile components were identified in S. libanotica subsp. linearis, S. libanotica subsp. libanotica, and S. phrygia, respectively. The main components identified were trans-Caryophyllene (19.33%), Bicyclogermacrene (9.79%), Limonene (9.72%), β-Pinene (8.40%), and α-Pinene (7.88%) in S. libanotica subsp. linearis; α-Pinene (25.81%), β-Phellandrene (19.73%), β-Myrcene (11.45%), β-Pinene (8.43%), and Bicyclogermacrene (6.18%) in S. libanotica subsp. libanotica; and trans-Caryophyllene (22.80%), β-Myrcene (10.53%), α-Pinene (9.16%), Limonene (8.06%), and β-Pinene (6.62%) in S. phrygia.

As a result of the analysis of variance (ANOVA), the CV values for both DPPH and CUPRAC antioxidant capacities were found to be within the acceptable range. Furthermore, both antioxidant scavenging capacities were found to be statistically significant at the 1% significance level. The S. libanotica subsp. linearis population had the highest DPPH antioxidant capacity, while the S. libanotica subsp. libanotica and S. phrygia populations were in the same group. The S. phrygia population had the highest CUPRAC antioxidant capacity, while the S. libanotica subsp. linearis and S. libanotica subsp. libanotica populations were in the same group. The difference in total phenolic content among the genotypes was found to be statistically insignificant, and all genotypes were placed in the same group.

 


Keywords


Sideritis, endemik, uçucu bileşenler, antioksidan özellikler, katı faz mikroekstraksiyon, Antalya, Türkiye

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References


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DOI: http://dx.doi.org/10.52155/ijpsat.v48.2.6893

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