Journal
FOOD CHEMISTRY
Volume 348, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2021.129090
Keywords
Natural deep eutectic solvent; Carthamus tinctorius; Ultrasonic assisted extraction; HPLC-MS; Pharmacokinetics; Bioavailability
Funding
- National Natural Science Foundation of China [81973560, 81874366, 81630105]
- Natural Science Foundation of Zhejiang Province [LR19H280001, LZ17H270001]
- Key Laboratory of TCM Encephalopathy of Zhejiang Province [2020E10012]
- Excellent Young Scholar Training Program of Zhejiang Chinese Medical University [Q2019Y03]
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In this study, natural deep eutectic solvents were used for extracting bioactive compounds from safflower, and L-proline-acetamide was found to be an effective solvent with high yields of hydroxysafflor yellow A and anhydrosafflor yellow B. Pharmacokinetic studies showed that the bioavailability of these compounds was significantly higher after oral administration of L-Pro-Am extract compared to aqueous extract.
Natural deep eutectic solvents (NaDESs) are promising green alternatives to conventional solvents widely applied in the extraction of natural products due to their physical and chemical superiorities. In present study, 22 NaDESs consisted from food grade ingredients were screened in ultrasonic assisted extraction (UAE) of bioactive compounds from safflower. The oral bioavailabilities of hydroxysafflor yellow A (HSYA) and anhydrosafflor yellow B (ASYB) in the extracts were then investigated in SD rats with the help of HPLC-MS technique. The results revealed that L-proline-acetamide (L-Pro-Am) was an effective solvent with the yields of HSYA and ASYB at 32.83 and 8.80 mg/g. Pharmacokinetic studies revealed that the blood level of HSYA and ASYB were significantly higher after oral administration of L-Pro-Am extract than that of aqueous extract. Especially, the relative bioavailabilities (to aqueous extract) of HSYA and ASYB were calculated 183.5% and 429.8%.
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