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Ahmed SA, Meena A, Seth D. Thermodynamic behaviour of binary mixture of 1,3-dimethoxyimidazolium bis(trifluoromethyl-sulfonyl)imide and water. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zhang W, Cheng S, Zhai X, Sun J, Hu X, Pei H, Chen G. Green and Efficient Extraction of Polysaccharides From Poria cocos F.A. Wolf by Deep Eutectic Solvent. Nat Prod Commun 2020. [DOI: 10.1177/1934578x19900708] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Deep eutectic solvents (DESs) were proposed for the extraction of polysaccharides from Poria cocos (PCPs). Six types of DESs were prepared, and the DES composed of choline chloride and oxalic acid was proved to be suitable. Based on the results of single-factor test, the Box-Behnken experimental design with response surface methodology was carried out, giving the optimal extraction conditions including mole ratio of 1:2 (choline chloride:oxalic acid) and extraction 15 minutes at 100°C. Under the optimal extraction conditions, the extraction yield (46.24% ± 0.13%) was 8.6 times higher than that of hot water. The reusability of DES was demonstrated by a 6-run test, and an extraction yield of PCP was 38.40% ± 0.23% after reusing for 6 times without adding any additional chemicals. Moreover, molecular weight distributions of the resulting PCP were analyzed, and then mainly distributed in the range of 753 to 3578 g/mol. Therefore, DESs were proved to be an excellent extraction solvent alternative to the extraction of PCP.
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Affiliation(s)
| | | | - Xiaona Zhai
- Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Junshe Sun
- Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Xuefang Hu
- Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Haisheng Pei
- Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Beijing, China
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