Experimental and Modelling Equation of Chebulinic Acid from the Composition of Medicinal Herbs by Using Soxhlet Extractor

Chebulinic acid is the phenolic compound in the medicinal herbs like Terminalia chebula, Amla fruits and longan seeds.The objectives of this work were extraction of Chebulinic acid from the composition of medicinal herbs and to develop a modelling equation to quantitatively describe the extraction phenomena.The extraction was carried out by employing various organic solvents using Soxhlet extractor method.Ethanol was found to be the best solvent for the extraction of Chebulinic acid from the composition of medicinal herbs.Soxhlet extractor was carried out using ethanol at different extraction times to verify the mathematical model proposed in this work.The final form of the proposed models were E s = 73.33(1-e -0.3423t ) for Chebulinic acid where Es = yield extract (milligrams of Chebulinic acid per gram of dried sample) and t = extraction time (hr).The model showed good agreement with the experimental data by generating Averagr absolute relative deviation (AARD) of about 50.201 ± 23.23% for milligrams of Chebulinic acid per 1 gram of dried sample.