Optimization of an ethanol/water-based sinapine extraction from mustard bran using Response Surface Methodology
Résumé
This study reports an optimization of the extraction of sinapine from industrial mustard bran using an ethanol/water mixture as a green solvent. Response Surface Methodology was used to determine the optimal operating conditions for the extraction process. The results show that to obtain a maximum yield of sinapine, the extraction process must be carried out at 75 °C with 70% ethanol and a ratio of 10 mL/gBDM. Under these conditions, the extraction kinetics have shown that equilibrium is reached for a concentration of 8.8 ± 0.1 mg/gBDM in 30 min. The mustard bran is exhausted to 95% sinapine after two successive extractions. The selectivity of the extraction process for sinapine could be increased by 20% using an ethanol concentration of 83%, the yield of sinapine is then 8.0 ± 0.1 mg/gBDM.
Domaines
Génie des procédés
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