Isaac Scientific Publishing

Advances in Food Science and Engineering

Effects of Microwave and Water Incorporation on Natural Deep Eutectic Solvents (NADES) and Their Extraction Properties

Download PDF (1514.8 KB) PP. 125 - 135 Pub. Date: December 1, 2018

DOI: 10.22606/afse.2018.24004


  • Analía V. Gómez
    University of São Paulo;USDA Agricultural Research Service
  • Atanu Biswas
    USDA Agricultural Research Service, National Center for Agricultural Utilization Research, Peoria, IL, United States
  • Carmen C. Tadini
    University of São Paulo,
  • Megan Buttrum
    USDA Agricultural Research Service, National Center for Agricultural Utilization Research, Peoria, IL, United States
  • Megan Buttrum
    USDA Agricultural Research Service, National Center for Agricultural Utilization Research, Peoria, IL, United States
  • Huai N. Cheng*
    USDA Agricultural Research Service, Southern Regional Research Center, New Orleans, LA, United States


One of the common processes employed in food technology and preparation is the extraction of specific components from agro-based materials. Although many methodologies are known, continued improvements are still desirable. A recent new development is the use of natural deep eutectic solvents (NADES) for extraction. In this work, we studied NADES/water combinations and found them to be viable alternatives to conventional solvents for extraction of polar ingredients in foods. The NADES/water solvents are eco-friendly, inexpensive, chemically inert, and biodegradable. Moreover, we found microwave heating to facilitate the preparation of NADES/water solvents. Selected NADES/water systems were characterized with respect to viscosity, refractive indices, electrical conductivity, water activity, and NMR. In addition, we utilized the microwave process to facilitate the extraction of sugars in a food product with a NADES/water system. The microwave process was found to be efficient, save time, and decrease energy usage. Thus, the combination of NADES/water/microwave is a versatile method that can provide improved extractions in food systems.


Extraction, NADES, deep eutectic solvent, microwave, NMR, conductivity, viscosity.


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