title: Application of metal-organic frameworks for purification of vegetable oils.
abstract: Reported here is the synthesis of aluminum-, zinc- and titanium-containing metal-organic frameworks based on terephthalic acid and an investigation on the possibility of using these compounds as adsorbents for the purification of unrefined vegetable oils. It is found that aluminum-, zinc- and titanium-containing metal-organic frameworks improve the physicochemical properties of unrefined vegetable oils (more pleasant taste and odor) due to the binding of free fatty acids and peroxide compounds. It is established that the synthesized materials are more effective in these respects as compared with traditional adsorbents. An adsorption mechanism of free fatty acids and peroxides is proposed. Last but not least, the used MOF can be easily recycled at least five times, via solvent washing.
authors.affiliation: State University of Chemistry and Technology, Sheremetevsky str., 7, 153000 Ivanovo, Russia. Electronic address: vea@isuct.ru.
authors.forename: E A
authors.initials: EA
authors.lastname: Vlasova
authors.affiliation: State University of Chemistry and Technology, Sheremetevsky str., 7, 153000 Ivanovo, Russia.
authors.forename: S A
authors.initials: SA
authors.lastname: Yakimov
authors.affiliation: State University of Chemistry and Technology, Sheremetevsky str., 7, 153000 Ivanovo, Russia.
authors.forename: E V
authors.initials: EV
authors.lastname: Naidenko
authors.affiliation: State University of Chemistry and Technology, Sheremetevsky str., 7, 153000 Ivanovo, Russia.
authors.forename: E V
authors.initials: EV
authors.lastname: Kudrik
authors.affiliation: State University of Chemistry and Technology, Sheremetevsky str., 7, 153000 Ivanovo, Russia.
authors.forename: S V
authors.initials: SV
authors.lastname: Makarov
mesh_terms: D000327:Adsorption; D010545:Peroxides / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*
chemical_list: D010545:Peroxides; D010938:Plant Oils
keywords: Acid value; Adsorption; Metal–organic framework; Peroxide value; Vegetable oil