Results 1 to 10 of about 17,038 (257)
Tocopherols in cancer: An update [PDF]
Tocopherols exist in four forms designated as α, β, δ, and γ. Due to their strong antioxidant properties, tocopherols have been suggested to reduce the risk of cancer. Cancer prevention studies with tocopherols have mostly utilized α‐tocopherol. Large‐scale clinical trials with α‐tocopherol provided inconsistent results regarding the cancer‐preventive ...
Nanjoo Suh, Soumyasri Das Gupta
exaly +3 more sources
Analytical Strategies for Tocopherols in Vegetable Oils: Advances in Extraction and Detection [PDF]
Tocopherols, major lipid-soluble components of vitamin E, are essential natural products with significant nutritional and pharmacological value. Their structural diversity and uneven distribution across vegetable oils require accurate analytical ...
Yingfei Liu +4 more
doaj +2 more sources
Tokopherols in Okara (Soy Pulp): Highly Efficient Liquid Chromatography [PDF]
Introduction. Soy pulp, or okara, is a soy milk by-product. It contains a complex of valuable macro- and micronutrients, including fat-soluble vitamins. Recently, there has been a growing interest in replacing synthetic antioxidants with a mix of natural
Petrova Svetlana N. +1 more
doaj +1 more source
Antioxidant Effects of Endogenous Components in Vegetable Oils
Different endogenous components (tocopherols, phytosterols, polyphenols and squalene) of vegetable oils were added to compounded vegetable oils to investigate the antioxidant effects.
Yuchen MA +3 more
doaj +1 more source
Anti-oxydants d’origine alimentaire : diversité, modes d’action anti-oxydante, interactions
Antioxidants of food origin (tocopherols, carotenoids, ascorbate, polyphenols) exert synergistic (tocopherols and ascorbate, carotenoids and ascorbate) or complementary (tocopherols ands carotenoids, ascorbate and polyphenols) antioxidant actions.
Léger Claude Louis
doaj +2 more sources
Rapid Estimation of Tocopherol Content in Linseed and Sunflower Oils-Reactivity and Assay
The reactivity of tocopherols with 2,2-diphenyl-1-picrylhydrazyl (DPPH) was studied in model systems in order to establish a method for quantifying vitamin E in plant oils. The method was optimized with respect to solvent composition of the assay medium,
Tjaša Prevc +5 more
doaj +1 more source
Samples of cottonseed oil, partially hydrogenated cottonseed oil and their blends, with iodine values between 60 and 110, tocopherol-stripped or not by aluminium oxide treatment, were submitted to thermal oxidation, at 180 °C, for 10 hours.
C. J. Steel +2 more
doaj +1 more source
Tocopherol vs. Tocopherol Acetate as a "Sparer" of Vitamin A.
Summary1. In bio-assays of vitamin A, α-tocopherol, but not α-tocopherol acetate, increased the rate of gain in the assay period. In a post-assay depletion period, animals that received α-tocopherol during the assay period survived 30-80% longer than controls.2.
M C, MILES, E M, ERICKSON, H A, MATTILL
openaire +2 more sources
This study evaluated the effect of ultrasonic pretreatment of flaxseeds for 0–10 min on the biosynthesis of tocopherols, tocotrienols, and carotenoids in flax sprouts.
Xinbo Guo +4 more
doaj +1 more source
The authenticity of coffee beans was addressed in this study using an analytical method with minimal sample preparation to achieve simple oil extraction and through the implementation of cost-effective equipment.
Lama Ismaiel +6 more
doaj +1 more source

