Aonla phytochemicals: extraction, identification and quantification.

Area of Science:

• Phytochemistry
• Analytical Chemistry
• Nutritional Science

Background:

• Aonla (Phyllanthus emblica) is a traditional medicinal plant with known health benefits.
• Understanding its phytochemical composition is crucial for its application in food and medicine.
• Previous studies have indicated the presence of various bioactive compounds in aonla.

Purpose of the Study:

• To characterize and quantify key phytochemicals in five different aonla varieties.
• To compare the phytochemical content across varieties and solvent extracts.
• To identify the most abundant phenolic and flavonoid compounds in aonla.

Main Methods:

• Phytochemical analysis of methanolic, ethanolic, and ethyl acetate extracts from five aonla varieties.
• Quantitative analysis using Reversed-Phase High-Performance Liquid Chromatography (RP-HPLC) at 270 nm.
• Identification and quantification of ascorbic acid, gallic acid, ellagic acid, ethyl gallate, and quercetin.

Main Results:

• Five key compounds (ascorbic acid, gallic acid, ellagic acid, ethyl gallate, quercetin) were identified in all aonla extracts.
• Significant variations in phytochemical content were observed among the five aonla varieties.
• Methanolic extracts, particularly from the 'Desi' variety, yielded the highest concentrations of gallic acid and ellagic acid.

Conclusions:

• Aonla is a rich source of phenolic and flavonoid compounds, with significant varietal differences.
• The 'Desi' variety, extracted with methanol, exhibits the highest potential for gallic acid and ellagic acid content.
• These findings support the use of aonla as a valuable natural source of bioactive compounds.