Application L2005

Solvent and Rotating Bed Reactor Extraction with One- and Two-Phase Solvents Applied to Bilberries (Vaccinium myrtillus) for Isolating Valuable Antioxidants

Correlation data between extracted anthocyanidins/ anthocyanins vs time, temperature, and ethanol concentration was collected and analyzed. RBR extraction was deemed advantageous, in the authors’ own words: “The RBR was better than traditional extraction and 16 min sufficed.”

Bilberry press cake is the major by-product from the production of bilberry juice. To valorize the press cake, the authors describe their work to extract antioxidant antocyanidins/ antocyanins from the cake. Different solvent compositions were compared as well as traditional extraction vs extraction by use of RBR. The methods used were as follows: “To summarize, the compared extraction methods were as follows: 1. Traditional extraction using different concentrations of ethanol dissolved in water, different masses of material, and different temperatures. 2. RBR extraction using different concentrations of ethanol dissolved in water, different masses, and temperatures. 3. RBR extraction using two-phase system, method 3 only mass and temperature were changed. 4. RBR extraction using two-phase system method 4, only mass and temperature were changed.”

 

Details

Authors: Josefina Nyström, Ulla-Britt Östman, Torgny Mossing, Paul Geladi from Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences and Leif Hed from Centria University of Applied Sciences, Kokkola, Finland

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