TY - JOUR AU - Pan, FG AU - Wang, MQ AU - Xu, JY AU - Yang, CX AU - Li, S AU - Lu, YF AU - Zhang, YD AU - Liu, BQ PY - 2022/09/15 Y2 - 2024/03/29 TI - Removal of DBP from evening primrose oil with activated clay modified by chitosan and CTAB JF - Grasas y Aceites JA - Grasas aceites VL - 73 IS - 3 SE - Research DO - 10.3989/gya.0438211 UR - https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1951 SP - e474 AB - <p>The pollution of phthalic acid esters (PAEs) in edible oils is a serious problem. In the current study, we attempt to remove dibutyl phthalate ester (DBP) from evening primrose oil (EPO) with modified activated clay. The activated clay, commonly used for de-coloration in the oil refining process, was modified by chitosan and hexadecyl trimethyl ammonium bromide (CTAB). The modifications were characterized by SEM, XRD, and FT-IR. We further tested the DBP adsorption capacity of CTAB/chitosan-clay and found that the removal rate was 27.56% which was 3.24 times higher than with pristine activated clay. In addition, the CTAB/chitosan-clay composite treatment had no significant effect on the quality of evening primrose oil. In summary, the CTAB/chitosan-clay composite has a stronger DBP adsorption capacity and can be used as a new adsorbent for removing DBP during the de-coloration process of evening primrose oil.</p> ER -