Effect of alpha-tocopherol (vitamin E) on the thermal degradation behavior of edible oils

Arora, Sanjiv; Bagoria, Rajeev; Kumar, Mahender

doi:10.1007/s10973-009-0460-2

Cited by 31 publications

(13 citation statements)

References 21 publications

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“…5). Arora et al reported that α‐TOC is thermally stable up to a temperature of about 240 °C; thereafter, it undergoes a sharp mass loss, losing about 95% of its original mass at around 460 °C 26. In addition, resveratrol is known to have relatively good thermal stability with a melting temperature of 265–267 °C 19.…”

Section: Resultsmentioning

confidence: 99%

Poly(L‐lactic acid) with added α‐tocopherol and resveratrol: optical, physical, thermal and mechanical properties

Hwang

Shim

Selke

et al. 2012

Polymer International

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Poly(L-lactic acid) (PLLA) films containing various concentrations of two natural antioxidants, α-tocopherol and resveratrol, were fabricated by a melt compounding and compression molding process. The influence of the antioxidants on the optical properties such as color and UV-visible light transmission was analyzed. The thermal, mechanical, rheological and physical properties of PLLA films with added antioxidants were assessed. PLLA films with added α-tocopherol and resveratrol showed a yellowish brown color and the lightness was influenced by the presence of the antioxidants. The glass transition and melting temperatures were significantly reduced with the addition of antioxidants while enhanced thermal stability was observed, which could be a benefit and important for processing and production. PLLA films with added antioxidants were slightly more hydrophobic than neat PLLA. The combination effect of plasticizing and enhancement of the elastic modulus with differing concentrations of two antioxidants played a critical role in the mechanical and thermomechanical properties of PLLA films. The melt viscosity of the PLLA films with added antioxidants was substantially higher than that of neat PLLA. The higher melt viscosity and G (ω) could be an indication of formation of entanglement between PLLA and the two antioxidants.

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Section: Resultsmentioning

confidence: 99%

Poly(L‐lactic acid) with added α‐tocopherol and resveratrol: optical, physical, thermal and mechanical properties

Hwang

Shim

Selke

et al. 2012

Polymer International

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“…The total vitamin E content in B20, C5 and WT was greater (1.3-, 1.1-and 1.1-fold, respectively) at 180 8C than at 120 8C. The effects of heat on the extraction of atocopherol and other tocopherols and tocotrienols (Arora et al, 2010;Moreau and Hicks, 2006;Sabliov et al, 2009) have been previously reported. In the absence of oxygen, a-tocopherol is stable at high temperatures.…”

Section: Tablementioning

confidence: 56%

Comparing extraction methods for the determination of tocopherols and tocotrienols in seeds and germinating seeds of soybean transformed with OsHGGT

Lee¹,

Park²,

Lee³

et al. 2012

Journal of Food Composition and Analysis

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“…TG and activation energy study for 4k are in good agreement. High values of Ti, Tp, mass residue percentage and exothermicity shown by compounds lead to conclusions that these compounds are highly thermally stable can be used as a suitable energetic material which is very useful for variety of defence and civilian application [19][20][21][22] . As the studied compounds are also good antimicrobial agents, so this thermal study will be helpful in studying the drug-excipient interaction in developing drug in tablet form and it can be used in quality control of the drug and for determination of drug quality via technological parameters 23 .…”

Section: Discussionmentioning

confidence: 99%

“…The TG curves shifts towards higher temperature with increase in heating rates. This might be due to different heat transfer and kinetic rates which delays the decomposition of sample 21 . Iso-conversional plots of O-F-W for 4k are shown in Figure 3, for illustration.…”

Section: Activation Energymentioning

confidence: 99%

Thermal Studies of Some Biological Active Bis[1,2,4]triazolophthalazines: Non Isothermal Kinetic Study of one of the Potent 3,6-Bis(4-nitrophenyl) bis([1,2,4]triazolo)[3,4-a:4,3-c]phthalazine

2013

Chem Sci Trans

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Thermal decomposition studies of twelve bis-1,2,4-triazolophthalazines (4a-l) have been investigated using TG and DSC techniques under argon atmosphere at a heating rate of 10 °C min-1. TG study shows that all halogen substituted compounds (4e-j) are thermally most stable except 4f. Mass percentage residues left at 550 °C lie in the range 29-52%. This shows that compounds are thermally stable at high temperatures. DSC curve shows two peaks except for 4c and 4d which are showing three DSC peaks degradation. Second peak of most of the compounds and third DSC peak of 4c-d shows exothermic decomposition. Activation energy calculated by model free methods for compound 4k show dependence on conversion value. Activation energy at conversion 0.8 for this compound is around 562.6 kJ mol-1 .

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Effect of alpha-tocopherol (vitamin E) on the thermal degradation behavior of edible oils

Cited by 31 publications

References 21 publications

Poly(L‐lactic acid) with added α‐tocopherol and resveratrol: optical, physical, thermal and mechanical properties

Poly(L‐lactic acid) with added α‐tocopherol and resveratrol: optical, physical, thermal and mechanical properties

Comparing extraction methods for the determination of tocopherols and tocotrienols in seeds and germinating seeds of soybean transformed with OsHGGT

Thermal Studies of Some Biological Active Bis[1,2,4]triazolophthalazines: Non Isothermal Kinetic Study of one of the Potent 3,6-Bis(4-nitrophenyl) bis([1,2,4]triazolo)[3,4-a:4,3-c]phthalazine

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