Identification of Flavonoids (Quercetin, Gallic acid and Rutin) from Catharanthus roseus Plant Parts using Deep Eutectic Solvent
Green technology is the most important topic in the pharmaceutical field because it reduces the cost of medicines and minimizes the environmental
impact of the field and is better for human health and safety. Green chemistry emphasizes that the solvent should be nontoxic, safe,
cheap, green, readily available, recyclable, and biodegradable. Deep eutectic solvents, a new type of green solvent, have some renowned
properties—for instance, high thermal stability, low vapor pressure, low cost, biodegradability, and high viscosity. In this study, deep eutectic
solvents made up of choline chloride-glycerol (1:2) were used for the extraction and isolation of flavonoid (rutin, gallic acid, and quercetin) from
Catharanthus roseus plant parts, flower petal, leaves, stem, and root. The amounts of rutin and quercetin in flower petal are 29.46 and 6.51%,
respectively, whereas, rutin, gallic acid, and quercetin amounts in leaves are 25.16, 8.57, and 10.47%, respectively. In stem the amounts of
rutin, gallic acid, and quercetin are 13.02, 5.89, and 7.47%, respectively. In root, only quercetin has been obtained that is 13.49%. The HPLC
is an analytical method, which was found to be an excellent technique for determination of rutin, gallic acid, and quercetin using deep eutectic
solvent extraction from plant parts of Catharanthus roseus.
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