Increased antioxidant potential of combined topical vitamin E and C against lipid peroxidation of eicosapentaenoic acid in pig skin induced by simulated solar radiation

2002 ◽  
Vol 78 (12) ◽  
pp. 1185-1193 ◽  
Author(s):  
R. M. W. Moison ◽  
R. Doerga ◽  
G. M. J. Beijersbergen van Henegouwen
Keyword(s):  
Lipid Peroxidation ◽  
Vitamin E ◽  
Solar Radiation ◽  
Eicosapentaenoic Acid ◽  
Antioxidant Potential ◽  
Pig Skin ◽  
Simulated Solar Radiation ◽  
Vitamin E And C

Differences in Vitamin E and C Profile Between Infant Formula and Human Milk and Relative Susceptibility to Lipid Oxidation

2013 ◽  
Vol 83 (5) ◽  
pp. 311-319 ◽  
Author(s):  
Ingrid Elisia ◽  
David D. Kitts
Keyword(s):  
Lipid Peroxidation ◽  
Vitamin E ◽  
Vitamin C ◽  
Human Milk ◽  
Lipid Oxidation ◽  
Infant Formula ◽  
Milk Formula ◽  
Infant Formulas ◽  
Vitamin E And C ◽  
Vit C

The vitamin E isoforms and vitamin (vit) C content of infant formulas were compared to human milk and related to relative susceptibilities to lipid peroxidation. We report that a highly distinct vitamin E and C profile exists between formula and human milk. Whileα-tocopherol (α-Toc) is the dominant vit E isoform in human milk, formula contains a substantial amount of α-Toc and δ-Toc that was greater than the level found in human milk (12- and 32-fold, respectively). Vitamin C was also two- fold higher in infant formula compared to human milk. Despite the higher vitamin E and C content, we also observed higher rates of lipid oxidation in the formula when compared to human milk. Storing human milk for one day at refrigeration temperatures did not produce hexanal in human milk, but this storage resulted in an increase in hexanal in formulas. We conclude that the higher concentrations of γ-Toc and δ-Toc in infant formulas did not provide similar protection from lipid oxidation as human milk. We also observed that vit C content was reduced during storage in both infant formula and human milk, which did not occur with the Toc isoforms.

scholarly journals Photocatalytic-Fenton Process under Simulated Solar Radiation Promoted by a Suitable Catalyst Selection

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 885
Author(s):  
Aida M. Díez ◽  
Helen E. Valencia ◽  
Maria Meledina ◽  
Joachim Mayer ◽  
Yury V. Kolen'ko
Keyword(s):  
Methylene Blue ◽  
Solar Radiation ◽  
Water Scarcity ◽  
Published Data ◽  
Fenton Process ◽  
Optimal Conditions ◽  
Operational Conditions ◽  
The Future ◽  
Simulated Solar Radiation ◽  
Catalyst Selection

Considering water scarcity, photo-based processes have been presented as a depollution technique, which should be optimized in order to be applied in the future. For that, the addition of an active photocatalyst and the usage of solar radiation are mandatory steps. Thus, Fe3O4–SiO2–TiO2 was synthesized, and its performance was evaluated using simulated solar radiation and methylene blue as a model pollutant. Under optimal conditions, 86% degradation was attained in 1 h. These results were compared to recent published data, and the better performance can be attributed to both the operational conditions selection and the higher photocatalyst activity. Indeed, Fe3O4–SiO2–TiO2 was physico-chemically characterized with techniques such as XRD, N2 isotherms, spectrophotometry, FTIR, electrochemical assays and TEM.

scholarly journals Effect of Dietary Fat Quality and Vitamin E on the Antioxidant Potential of Pigs

1983 ◽  
Vol 24 (2) ◽  
pp. 135-147 ◽  
Author(s):  
P. Thode Jensen ◽  
H. E. Nielsen ◽  
V. Danielsen ◽  
T. Leth
Keyword(s):  
Vitamin E ◽  
Dietary Fat ◽  
Antioxidant Potential ◽  
Fat Quality
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