Deep eutectic solvents as efficient solvent system for the extraction of kappa-carrageenan from Kappaphycus alvarezii

作者：Das Arun Kumar; Sharma Mukesh; Mondal Dibyendu; Prasad Kamalesh^*

来源：Carbohydrate Polymers, 2016, 136: 930-935.

DOI：10.1016/j.carbpol.2015.09.114

• Deep eutectic solvents
• Hydrated deep eutectic solvent
• Extraction
• kappa-Carrageenan

Three different deep eutectic solvents (DESs) prepared by the complexation of choline chloride with urea, ethylene glycol and glycerol along with their hydrated counterparts were used for the selective extraction of kappa-carrageenan from Kappaphycus alvarezii. Upon comparison of the quality of the polysaccharide with the one obtained using water as extraction media as well as the one extracted using widely practiced conventional method, it was found that, the physicochemical as well as rheological properties of kappa-carrageenan obtained using DESs as solvents was at par to the one obtained using conventional method and was superior in quality when compared to kappa-carrageenan obtained using water as solvent. Considering the tedious nature of the extraction method employed in conventional extraction process, the DESs can be considered as suitable alternative solvents for the facile extraction of the polysaccharide directly from the seaweed. However, among the hydrated and non-hydrated DESs, the hydrated ones were found to be more effective in comparison to their non-hydrated counterparts.

• 出版日期2016-1-20
• 单位海洋化工研究院有限公司