[Study on flavonoids from leaf of Ipomoea batatas]

Area of Science:

• Phytochemistry
• Natural Product Chemistry
• Plant Sciences

Context:

• Ipomoea batatas, commonly known as sweet potato, is a globally significant crop with a rich history of traditional medicinal use.
• Understanding its phytochemical composition is crucial for exploring its potential pharmacological activities and nutritional value.
• Previous research has not fully elucidated the flavonoid profile of Ipomoea batatas leaves.

Purpose:

• To isolate and identify the flavonoid constituents present in the leaves of Ipomoea batatas.
• To characterize the chemical structures of the isolated compounds using spectroscopic and physicochemical methods.
• To establish a baseline for future research into the biological activities of these specific flavonoids from this source.

Summary:

• Extraction of Ipomoea batatas leaves using ethanol, followed by partitioning into chloroform, ethyl acetate, and n-butanol fractions.
• Isolation of compounds from the ethyl acetate fraction utilizing silica gel and Sephadex LH-20 column chromatography.
• Identification of five flavonoid compounds: tiliroside, astragalin, rhamnocitrin, rhamnetin, and kaempferol, based on spectral data and physicochemical properties.

Impact:

• This research marks the first report of these five specific flavonoid compounds being isolated from Ipomoea batatas.
• The findings contribute novel chemical data to the understanding of Ipomoea batatas phytochemistry.
• Provides a foundation for further investigations into the potential health benefits and applications of these identified flavonoids.