Abstract
In this study, microwave-assisted extraction with ethanol (MAEE) of star anise oil from Illicium verum Hook.f. has been optimised by response surface methodology (RSM). A maximum yield of star anise oil was obtained at an optimum condition: the ratio of solvent to sample 17 mL g-1, extraction time 16 min and microwave power 505 W. Accordingly, the highest yield of star anise oil was about 24.98%, which was much higher than that of steam distillation (SD), 7.17%. Oxygenated organic compounds in representative of trans-anethole are a major component in star anise oil, nearly 94.21% for SD and 86.66% for MAEE, identified and determined by GC-MS. The oils extracted by SD and MAEE both have strong antioxidant activities that were demonstrated by the DPPH and ABTS assays.
| Original language | English |
|---|---|
| Pages (from-to) | 2324-2330 |
| Number of pages | 7 |
| Journal | International Journal of Food Science and Technology |
| Volume | 48 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1 Nov 2013 |
Keywords
- Antioxidant
- Microwave extraction
- Response surface methodology
- Star anise oil
ASJC Scopus subject areas
- Food Science
- Industrial and Manufacturing Engineering