Separation of sterols using zeolites
文献信息
Mikhail Yu. Berezin, John M. Dzenitis, B. Mason Hughes, Sa V. Ho
Campesterol and β-sitosterol, two similar plant sterols which differ by only one methyl group in a side chain, were successfully separated using NaY zeolite. The zeolite preferentially adsorbed campesterol over β-sitosterol from a hexane solution. Mathematical analysis of the adsorption kinetics showed that the data could be fitted by a simple irreversible adsorption expression. Molecular modeling showed that the sterol and zeolite pore dimensions are such that size selectivity is the likely mechanism for separation. This hypothesis is consistent with the trend in adsorption rates: as the sterol diameter decreases, the adsorption rate increases in the order cholesterol>campesterol>β-sitosterol>stigmasterol.
期刊推荐

Polycyclic Aromatic Compounds

Bioorganic & Medicinal Chemistry

Herald of the Russian Academy of Sciences

Journal of Chemical Sciences

Journal of Asian Natural Products Research

Biocatalysis and Biotransformation

Topics in Catalysis

Critical Reviews in Solid State and Materials Sciences

Acta Metallurgica Sinica-English Letters

Medicinal Chemistry Research
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.
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