6th International Eurasian Conference on Biological and Chemical Sciences (EurasianBioChem 2023), Ankara, Türkiye, 11 - 13 Ekim 2023, ss.66
Abstract
Yarrow is a flowering plant in the family of Asteraceae and it is considered one of the oldest medicinal plants.
Yarrow extracts are used as a remedy for some diseases in phototherapy because of its high bioactivity. It
contains many bioactive constituents and it shows high antioxidant capacity. In this research, hydroglycerolic
extraction was performed to produce green extract and its some bioactive properties were characterized. For
this purpose, three different solvents namely ethanol, glycerol and water were used in the extraction and
simplex lattice mixture design was used to determine the effects of the sole or mixed solvent effects on the
studied parameters such as total phenolic and flavonoid, antiradical and antioxidant activities. Total phenolic
content of sole water, ethanol and glycerol extracts was determined as 12.81, 2.92 and 9.17 mg GAE/g,
respectively while the total flavonoid content ranged between 3.76-19.35 mg QE/g. The linear effects of the
used solvent were determined to be significant (p<0.05) on both total phenolic and flavonoid contents. The
constructed regression equations for total phenolic and flavonoid contents showed good fitting ability with
quite high coefficient of determination (R2>0.850). The solvent effects on studied antioxidant and antiradical
activities were also significant. The optimization procedure of the mixture design revealed that the highest
total phenolic content (19.64 mg GAE/g) would be obtained by the extraction of water, ethanol and glycerol
mixture at 52.58, 6.35 and 41.04% while the minimum levels would be observed by sole ethanol (2.42 mg
GAE/g). The recorded results showed that the yarrow could be extracted by the mixture of water and glycerol
and hydroglycerolic extraction of yarrow samples showed superior bioactive properties.
Keywords: yarrow, glycerol, bioactivity, simplex lattice mixture design, optimization
Note: This study has been supported by Erciyes University Scientific Research Projects Unit with FBA-
2020-10122 code.