alexa Abstract | Microwave-assisted extraction of alantolactone and isoalantolactone from inula helenium

Indian Journal of Pharmaceutical Sciences
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Short Communication Open Access

Abstract

Microwave-assisted extraction was used for the extraction of alantolactone and isoalantolactone from Inula helenium. Effects of various experimental factors including ethanol concentration, particle size, microwave radiation time, the ratio of material to liquid and extraction temperature on yield of alantolactone and isoalantolactone were evaluated. The optimal extracting process of the alantolactone and isoalantolactone from the root of the Inula helenium was 1 g plant sample (sifted through 140 mesh) mixed with 15 ml of 80% ethanol solution, microwave radiation 120 s at 50°. Under these optimal conditions, the yield of alantolactone and isoalantolactone was 31.83±2.08 mg/g and 21.25±1.37 mg/g, respectively. Compared with heat reflux extraction, ultrasound-assisted extraction, microwave-assisted extraction was more efficient and timesaving for the extraction of alantolactone and isoalantolactone from Inula helenium.

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Author(s): YM Zhao J Wang HB Liu CY Guo WM Zhang

Keywords

Inula helenium , microwave-assisted extraction, alantolactone, isoalantolactone

 
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