Asian Journal of Pharmacy and Technology

Extraction is an important step for separation, identification and use of valuable components from different plants. It is necessary to optimize extraction methodology so as to achieve maximum extraction efficiency. Quality of extract is influenced by several factors such as particle size of plant material, time, solvent choice, solvent/solute ratio and time of extraction. in the present study effect of various parameters studied in order to obtain highest yield of Curcuma longa (rhizomes) using conventional and novel methods of extraction. The parameters sets were particle size of #10, #20, #40, time 30min, 60min (maceration), 10min, 20min (ultrasound assisted extraction), 5min, 10min (microwave assisted extraction), choice of solvent was methanol, ethyl acetate and solvent/solute ratio of 10/5 and 20/5. The Result indicates: In maceration, solvent Methanol with particle size of #20 and solvent/solute ratio of 20/5 at 60 min has shown highest % yield of 21.67%. In ultrasound assisted extraction, a highest yield of 21.81% was reported in solvent Ethyl acetate with particle size of #20 and solvent/solute ratio of 20/5 at 20 min. In microwave assisted extraction, a highest yield of 22.38% was reported in solvent Methanol with particle size of #10 and solvent/solute ratio of 20/5 at 3 min.