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Kongpol K, Sermkaew N, Makkliang F, Khongphan S, Chuaboon L, Sakdamas A, Sakamoto S, Putalun W, Yusakul G. Extraction of curcuminoids and ar-turmerone from turmeric (Curcuma longa L.) using hydrophobic deep eutectic solvents (HDESs) and application as HDES-based microemulsions. Food Chem 2022; 396:133728. [PMID: 35870240 DOI: 10.1016/j.foodchem.2022.133728] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 11/04/2022]
Abstract
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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Affiliation(s)
- Kantapich Kongpol
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand; Research Excellence Center for Innovation and Health Product, Walailak University, Nakhon Si Thammarat, Thailand.
| | - Namfa Sermkaew
- School of Pharmacy, Walailak University, Thaiburi, Thasala, Nakhon Si Thammarat, Thailand; Drug and Cosmetics Excellence Center, Walailak University, Nakhon Si, Thammarat, Thailand.
| | - Fonthip Makkliang
- School of Languages and General Education, Walailak University, Nakhon Si Thammarat, Thailand.
| | - Sirinan Khongphan
- School of Pharmacy, Walailak University, Thaiburi, Thasala, Nakhon Si Thammarat, Thailand
| | - Litavadee Chuaboon
- School of Pharmacy, Walailak University, Thaiburi, Thasala, Nakhon Si Thammarat, Thailand; Biomass and Oil Palm Center of Excellence, Walailak University, Nakhon Si Thammarat, Thailand.
| | - Attapon Sakdamas
- School of Pharmacy, Walailak University, Thaiburi, Thasala, Nakhon Si Thammarat, Thailand
| | - Seiichi Sakamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan.
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand.
| | - Gorawit Yusakul
- School of Pharmacy, Walailak University, Thaiburi, Thasala, Nakhon Si Thammarat, Thailand; Biomass and Oil Palm Center of Excellence, Walailak University, Nakhon Si Thammarat, Thailand.
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