Natural deep eutectic solvents as a biocompatible tool for the extraction of blueberry anthocyanins

By D. T. D. Silva, Roberson Pauletto, S. D. S. Cavalheiro, V. Bochi, Eliseu Rodrigues, Julia Weber, C. B. Silva, F.D.P. Morisso, M. T. Barcia, T. Emanuelli. Journal of Food Composition and Analysis, 2020

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Abstract The extraction of blueberry anthocyanins with natural deep eutectic solvents (NADES) based on choline chloride:glycerol:citric acid was optimized by simplex centroid design to find the best molar ratio for the solvent. Choline chloride:glycerol:citric acid at the molar ratio of 0.5:2:0.5 (NADES 6) was the optimal NADES for extraction. NADES 6 was as efficient as the conventional organic solvent (methanol:water:formic acid) when compared at the same sample:solvent ratio and yielded about 76 % of blueberry anthocyanins compared to an exhaustive extraction with the organic solvent. NADES 6 yielded higher proportion of arabinoside anthocyanins and lower proportion of galactoside anthocyanins than the organic solvent. Thus, NADES can be assumed as a cheaper substitute for organic solvents, yielding biocompatible extracts of blueberry that are selectively enriched in arabinoside anthocyanins.

Subfields: Biotechnology, Catalysis, Food Science

View Paper: https://www.semanticscholar.org/paper/1e0a50e9573f20db29b31211d8cad3c136da11f6

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  1. Paula Silva
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  3. A. Francioso
  4. Roberto Mattioli

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