Biguanide-functionalized mesoporous SBA-15 silica as an efficient solid catalyst for interesterification of vegetable oils

Structured lipids by swine lard interesterification with oil and esters from common carp viscera

“…This crystallization tendency can be modified by chemical interesterification of the swine lard, since the amount of palmitic acid at the sn-2 position can be reduced considerably (Silva & Gioielli, 2009). In this way, the food industries have shown interest in the interesterification process between oil and fat, because improves the fat characteristics without promoting the generation of trans-fats (Xie & Hu, 2016).…”

Mesoporous SBA-15 Silica-supported Diisopropylguanidine: an Efficient Solid Catalyst for Interesterification of Soybean Oil with Methyl Octanoate or Methyl Decanoate

“…For comparison, the lowangle XRD pattern of SBA-15 silica is also provided. The two samples exhibited an intense peak at 0.91 due to 100 reflection, and two well-resolved weak peaks at 1.56 and 1.76 due to higher order 110 and 200 reflections 24,29 .…”

“…In continuation of our studies on developing environmentally benign methodologies for the interesterification of vegetable oils 24,25 , herein 3-N,N -diisopropylguanidine -propyltriethoxysilane was firstly prepared in the present study and then employed as organosilane agent for immobilizing guanidine base onto the mesoporous SBA-15 materials through covalent bonds to synthesize the guanidine-functionalized SBA-15 catalyst. The obtained organic-inorganic hybrid base catalyst was characterized in detail by using various techniques, including small-angle X-ray power diffraction XRD , Fourier transform infrared FT-IR spectra, scanning electron microscopy SEM , transmission electron microscopy TEM , nitrogen adsorption-desorption and elemental analysis techniques.…”

Synthesis and characterization of indium and thallium immobilized on isonicotinamide‐functionalized mesoporous MCM‐41: Two novel and highly active heterogeneous catalysts for selective oxidation of sulfides and thiols to their corresponding sulfoxides and disulfides

“…Several procedures for heterogenization of homogeneous catalysts have been developed which are mostly based on inorganic support systems, dendrimers or organic polymers. It is commonly recognized that covalent functionalization of complexes on inorganic supports gives the best recycling outcomes . Among the most efficient supports are the group of MCM materials, developed by Mobil since 1992, particularly MCM‐41 that is usually selected as a potential support material for heterogeneous catalysts due to its high surface area, ordered structure of hexagonal channels, regular pore size distribution, good mechanical stability and surface nature.…”

“…It is commonly recognized that covalent functionalization of complexes on inorganic supports gives the best recycling outcomes. [4][5][6][7][8][9][10][11] Among the most efficient supports are the group of MCM materials, developed by Mobil since 1992, particularly MCM-41 that is usually selected as a potential support material for heterogeneous catalysts due to its high surface area, ordered structure of hexagonal channels, regular pore size distribution, good mechanical stability and surface nature. Organometallic 1 Oxidation of sulfides [38] Silica vanadic acid (SVA)/ CH 3 2 Oxidation of sulfides [17] SBA-15@Creatinine@Y/ solvent-free 3 Oxidation of sulfides [39] VO-2A3HP-MCM-41/ solvent-free Oxidation of sulfides [40] MCM-41@XA@Ni(II)/ solvent-free Ph-S-Me 60 90 PhCH 2 -S-CH 2 Ph 90 88 Ph-S-CH 2 CH 2 (OH) 60 93 Me-S-CH 2 CH 2 (OH) 43 95 CH 3 CH 2 CH 2 -S-CH 2 CH 2 CH 3 50 95 5 Oxidation of thiols [41] Zr-oxide@MCM- 41 complexes can be reacted with silanol groups through covalent bonds to create inorganic-organic hybrid nanocomposites.…”