Abstract
Extraction of ferulic acid from sugar beet pulp was carried out using three extraction solvents, sodium hydroxide (0.5, 1, 2 M), methanol and their mixture (alkaline methanolic solvent). The Ferulic acid extracted by each solvent was identified and quantified by HPLC method and the effects of solvent type, concentration and reaction time on ferulic acid solubilisation were assessed. There were differences in the contents of products extracted in the experiment conditions. The minimum amount of ferulic acid was obtained from methanolic extract while the highest concentrations (957.4 mg/L ferulic acid) were obtained employing the highest NaOH concentration (2 M), and reaction time (12 h), so phenolic compounds are better released with alkaline hydrolysis than in methanol conditions. Finally a simple procedure for the purification of ferulic acid from the alkaline extracts is presented and evaluated by FT-IR spectrum.
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Aarabi, A., Mizani, M., Honarvar, M. et al. Extraction of ferulic acid from sugar beet pulp by alkaline hydrolysis and organic solvent methods. Food Measure 10, 42–47 (2016). https://doi.org/10.1007/s11694-015-9274-z
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DOI: https://doi.org/10.1007/s11694-015-9274-z