期刊
FOOD CHEMISTRY
卷 396, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2022.133728
关键词
Curcuminoid; Hydrophobic deep eutectic solvent; Microemulsion; ar-Turmerone; Ultrasonication-assisted extraction; Turmeric
资金
- Thailand Science Research and Innovation Fund [WU-FF64102]
- Walailak University, Thailand
This study presents the design of hydrophobic deep eutectic solvents (HDESs) and HDES-based microemulsions for the extraction of curcuminoids and ar-turmerone from Curcuma longa L. The results show that HDES and its microemulsions are more effective and environmentally friendly than conventional organic solvents, and they are also compatible with food and pharmaceutical formulations.
The extraction of curcuminoids and aromatic (ar)-turmerone from Curcuma longa L. using organic solvents produces chemical waste, and is therefore incompatible with food applications. To address this issue, this study presents the design of hydrophobic deep eutectic solvents (HDESs) and HDES-based microemulsions. Using the response surface methodology (RSM), the optimal extraction conditions were identified as follows: HDES = OA: menthol (1:3.6 M ratio), solid-to-liquid ratio = 10:1 (mg/mL), and extraction duration = 90 min (prediction accuracy >= 85 %). Under these conditions, the HDES extraction yields of bisdemethoxycurcumin, demethoxycurcumin, curcumin, and ar-turmerone were 2.49 +/- 0.25, 5.61 +/- 0.45, 9.40 +/- 0.86, and 3.83 +/- 0.19 % (w/w, dry basis), respectively, while those obtained using the HDES-based microemulsion were 2.10 +/- 0.18, 6.31 +/- 0.48, 12.6 +/- 1.20, and 2.58 +/- 0.19 % (w/w, dry basis), respectively. The HDES and its microemulsions are more effective and environmentally friendly than conventional organic solvents for the extraction of curcuminoids and ar-turmerone, and these solvents are also compatible with food and pharmaceutical formulations.
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