Removal of DBP from evening primrose oil with activated clay modified by chitosan and CTAB

Authors

DOI:

https://doi.org/10.3989/gya.0438211

Keywords:

Activated clay, Evening primrose oil, Dibutyl phthalate ester

Abstract


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.

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Published

2022-09-15

How to Cite

1.
Pan F, Wang M, Xu J, Yang C, Li S, Lu Y, Zhang Y, Liu B. Removal of DBP from evening primrose oil with activated clay modified by chitosan and CTAB. grasasaceites [Internet]. 2022Sep.15 [cited 2022Sep.29];73(3):e474. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1951

Funding data

Jilin Province Key R&D Plan Project
Grant numbers 20190301058NY