Recovery of sinapic acid from canola/rapeseed meal extracts by adsorption

•Resin comparison and selection is done by determining adsorption/desorption equilibrium from single and multicomponent batch experiments.•Higher pH values than 6 leads to significantly lower adsorption of sinapic acid on macroporous hydrophobic resins.•High selectivity of sinapic acid over glucose,...

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Bibliographic Details
Published in:Food and bioproducts processing 2020-03, Vol.120, p.69-79
Main Authors: Moreno-González, Mónica, Girish, Vasupradha, Keulen, Daphne, Wijngaard, Hilde, Lauteslager, Xavier, Ferreira, Guilherme, Ottens, Marcel
Format: Article
Language:English
Subjects:
Acids
Adsorption
Antimicrobial agents
Antioxidants
Brassica napus
Chromatography
Design
Ethanol
Flowers & plants
Food valorization
Glucosinolates
Hydrophobic interaction
Phytic acid
Polyphenols
Rapeseed
Recovery
Selectivity
Sinapic acid
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Summary:•Resin comparison and selection is done by determining adsorption/desorption equilibrium from single and multicomponent batch experiments.•Higher pH values than 6 leads to significantly lower adsorption of sinapic acid on macroporous hydrophobic resins.•High selectivity of sinapic acid over glucose, phytic acid and glucosinolates on macroporous hydrophobic resins is observed.•Effective desorption of sinapic acid is achieved with ethanol/water solutions.•Batch adsorption equilibrium data is applied successfully as input in a dynamic column model. Sinapic acid is a potential valuable compound to be recovered from rapeseed meal extracts as it processes antioxidant and antimicrobial properties. However, the concentration of this compound might be low and the presence of other low value compounds could complicate its downstream processing. Adsorption is an alternative technique that might allow selective recovery of this compound. This work was focused on establishing the foundation of an industrial process design to recover sinapic acid by adsorption. The obtained results from multicomponent experiments indicate that, resin AmberliteTM FPX66 is the best performing one showing a maximum adsorption capacity of 102.6+11.7mg/gresin, easy sinapic acid recovery by desorbing it with 70% ethanol and high selectivity to sinapic acid over glucose, phytic acid and glucosinolates. The obtained equilibrium information was applied as input in a dynamic column model and compared with experimental results, showing a good agreement (r2=0.98). The model can be further applied for a large-scale chromatography process design to recover sinapic acid from rapeseed/canola meal extracts.
ISSN:0960-3085
1744-3571
DOI:10.1016/j.fbp.2019.12.002