期刊
PLANTS-BASEL
卷 12, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/plants12051057
关键词
anthocyanidins; color; carajurin; medicinal plants; HPLC; development; validation; Arrabidaea chica
Anthocyanidins are natural compounds responsible for the color of foods and seed dispersal. A method was developed to quantify 3D-anth compound in plant extracts, using Arrabidaea chica Verlot as an example. The method was validated and can be used for quality control and evaluation of 3D-anth in plant extracts with chemical ecology interest.
Anthocyanidins are found in nature mainly as pelargonidin, cyanidin, peonidin, delphinidin, petunidin, and malvidin derivatives. These compounds are found free or as glycoside derivatives which are responsible for the color (red, blue, and violet) of some foods and are responsible for attracting seed dispersers. They are grouped into 3-hydroxyanthocyanidins, 3-deoxyanthocyanidins (3D-anth), and O-methylated anthocyanidins. A new method was developed and validated to quantify 3D-anth in plant-rich extracts. To test the new method, Arrabidaea chica Verlot was selected as it is widely used in folk medicine, and it is rich in 3D-anth. The new method was developed by HPLC-DAD and expressed 3D-anth as carajurin content. Carajurin was chosen as the reference standard due to its role as a biological marker for the antileishmanial activity for A. chica. The selected method used a silica-based phenyl column, a mobile phase composed of potassium dihydrogen phosphate buffer, acetonitrile, and methanol, in a gradient elution mode and detection at 480 nm. The method reliability was confirmed by verifying selectivity, linearity, precision, recovery, and robustness. This method contributes to quality control and development of a possible active pharmaceutical ingredient from A. chica as well as it can be used to evaluate 3D-anth in plant extracts with chemical ecology interest.
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