Subcritical Water Extraction of Chestnut Bark and Optimization of Process Parameters.

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2020
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Abstract
The aim of the work was the optimization of the subcritical water extraction process of chestnut bark using Box-Behnken response surface methodology. The influence of process parameters, such as temperature, extraction time and solvent-solid ratio, on extraction yield, yield of the main compounds, total phenol content, total tannin content and antioxidant activity has been investigated. The identified compounds were ellagic and gallic acids, ellagitannins (vescalagin, castalagin, 1--galloyl castalagin, vescalin and castalin), sugars (maltose, glucose, fructose and arabinose) and sugar derivatives (5-HMF, furfural and levulinic acid). Finally, the optimal process conditions for obtaining the bark extract highly rich in ellagic acid and with satisfactory levels of total phenols and total tannins have been determined.
Reference Key
gagi2020subcriticalmolecules Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Gagić, Tanja;Knez, Željko;Škerget, Mojca;
Journal molecules
Year 2020
DOI
E2774
URL
Keywords
ellagic acid gallic acid ellagitannins subcritical water sweet chestnut bark

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