Background: Narcissin is well known for their various biological activities. Objective: To recover narcissin from the Opuntia ficus-indica fruits (OFIF), an efficient method was developed by a combination of response surface methodology (RSM) and high-speed countercurrent chromatography (HSCCC). Materials and Methods: Optimization of extraction conditions of narcissin from OFIF was determined using RSM with three-level-three-factor Box-Behnken design (BBD). Then, a rapid and efficient method for the isolation of narcissin from the rich narcissin extracts was developed using HSCCC. Results: Regression analysis showed a good fit of the experimental data and the optimal condition was obtained as extraction time (X1), 6.02 h; solvent to material ratio (X2), 8.16 mL/g; and ethanol concentration (X3), 93.48%. Then, the rich narcissin extracts were separated by HSCCC with a two-phase solvent system composed of n-hexane: ethyl acetate: methanol: water (1.5:5:5:1.5, v/v/v/v) in one step within 60 min. As a result, 12 mg of narcissin was isolated from 100 mg of crude extract with purities of 98.5%, as determined by high-performance liquid chromatography (HPLC). Conclusion: This study can be useful to the development of industrial extraction processes, including further studies concerning the optimal number of sequential steps to enhance the efficacy of a large-scale extraction system.
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation of Korea grant funded by the Korea government (No. 2016R1A2B4006742) and by BrainKorea21PLUS program funded by National Research Foundation of Korea.
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All Science Journal Classification (ASJC) codes
- Pharmaceutical Science
- Drug Discovery