Glycerol, glucose and 2‐acetoacetoxyethyl methacrylate: Effect on methyl linolenate oxidation and yellowing
The effect of glycerol, glucose and acetoacetoxyethyl methacrylate (AAEM) on autoxidation and yellowing of methyl linolenate has been investigated by nuclear magnetic resonance (NMR) and ultraviolet (UV)‐Visible spectroscopies. The extent of autoxidation was determined by measuring the NMR integrati...
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| Veröffentlicht in: | Journal of the American Oil Chemists' Society 1992-04, Vol.69 (4), p.338-340 |
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| container_title | Journal of the American Oil Chemists' Society |
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| creator | Kumarathasan, Rajkumar Rajkumar, Amirthini B. Hunter, Norman R. Gesser, Hyman D. |
| description | The effect of glycerol, glucose and acetoacetoxyethyl methacrylate (AAEM) on autoxidation and yellowing of methyl linolenate has been investigated by nuclear magnetic resonance (NMR) and ultraviolet (UV)‐Visible spectroscopies. The extent of autoxidation was determined by measuring the NMR integration of vinylic protons with respect to methoxy protons, an internal standard, as a function of time. The extent of yellowing was determined by measuring the difference in absorbance at 400 nm and 450 nm as a function of time. Glycerol and AAEM showed inhibition of autoxidation, but the most significant effect was observed with AAEM. Glucose enhanced the autoxidation of methyl linolenate. Inhibition of yellowing was observed with all these compounds, especially with glycerol and AAEM. |
| doi_str_mv | 10.1007/BF02636063 |
| format | Article |
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The extent of autoxidation was determined by measuring the NMR integration of vinylic protons with respect to methoxy protons, an internal standard, as a function of time. The extent of yellowing was determined by measuring the difference in absorbance at 400 nm and 450 nm as a function of time. Glycerol and AAEM showed inhibition of autoxidation, but the most significant effect was observed with AAEM. Glucose enhanced the autoxidation of methyl linolenate. 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The extent of autoxidation was determined by measuring the NMR integration of vinylic protons with respect to methoxy protons, an internal standard, as a function of time. The extent of yellowing was determined by measuring the difference in absorbance at 400 nm and 450 nm as a function of time. Glycerol and AAEM showed inhibition of autoxidation, but the most significant effect was observed with AAEM. Glucose enhanced the autoxidation of methyl linolenate. 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The extent of autoxidation was determined by measuring the NMR integration of vinylic protons with respect to methoxy protons, an internal standard, as a function of time. The extent of yellowing was determined by measuring the difference in absorbance at 400 nm and 450 nm as a function of time. Glycerol and AAEM showed inhibition of autoxidation, but the most significant effect was observed with AAEM. Glucose enhanced the autoxidation of methyl linolenate. Inhibition of yellowing was observed with all these compounds, especially with glycerol and AAEM.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer‐Verlag</pub><doi>10.1007/BF02636063</doi><tpages>3</tpages></addata></record> |
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| ispartof | Journal of the American Oil Chemists' Society, 1992-04, Vol.69 (4), p.338-340 |
| issn | 0003-021X 1558-9331 |
| language | eng |
| recordid | cdi_crossref_primary_10_1007_BF02636063 |
| source | SpringerLink Journals - AutoHoldings |
| subjects | Acceleration autoxidation inhibition methyl linolenate yellowing |
| title | Glycerol, glucose and 2‐acetoacetoxyethyl methacrylate: Effect on methyl linolenate oxidation and yellowing |
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