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Analytical Strategies for Tocopherols in Vegetable Oils: Advances in Extraction and Detection [PDF]

Pharmaceuticals
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, Mengyuan Lv, Yuyang Wang, Jinchao Wei, Di Chen   +4 more
doaj   +2 more sources

Tokopherols in Okara (Soy Pulp): Highly Efficient Liquid Chromatography [PDF]

Техника и технология пищевых производств, 2020
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. , Maksimova Irina A.   +1 more
doaj   +1 more source

Antioxidant Effects of Endogenous Components in Vegetable Oils

Shipin gongye ke-ji, 2023
Different endogenous components (tocopherols, phytosterols, polyphenols and squalene) of vegetable oils were added to compounded vegetable oils to investigate the antioxidant effects.
Yuchen MA, Guangyi WANG, Lele LIU, Hongyan LI   +3 more
doaj   +1 more source

Anti-oxydants d’origine alimentaire : diversité, modes d’action anti-oxydante, interactions

Oléagineux, Corps gras, Lipides, 2006
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

Molecules, 2015
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, Alenka Levart, Irena Kralj Cigić, Janez Salobir, Nataša Poklar Ulrih, Blaž Cigić   +5 more
doaj   +1 more source

Formation of polymerization compounds during thermal oxidation of cottonseed oil, partially hydrogenated cottonseed oil and their blends

Grasas y Aceites, 2006
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, M. C. Dobarganes, D. Laboratório de Óleos e Gorduras Barrera-Arellano   +2 more
doaj   +1 more source

Effect of Ultrasonic Pretreatment on the Biosynthesis of Tocopherols, Tocotrienols and Carotenoids in Flax Sprouts (Linum Usitatissimum L.)

Journal of Natural Fibers, 2022
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, Yixin Wu, Nan Xiang, Fangyang Gao, Caisheng Qiu   +4 more
doaj   +1 more source

The Determination of Triacylglycerols and Tocopherols Using UHPLC–CAD/FLD Methods for Assessing the Authenticity of Coffee Beans

Foods, 2023
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, Benedetta Fanesi, Anastasiya Kuhalskaya, Laura Barp, Sabrina Moret, Deborah Pacetti, Paolo Lucci   +6 more
doaj   +1 more source

The influence of natural tocopherols during thermal oxidation of refined and partially hydrogenated soybean oils

Grasas y Aceites, 2005
Samples of refined and partially hydrogenated soybean oils, with iodine values between 60 and 130, tocopherol-stripped or not by aluminium oxide treatment, were submitted to thermal oxidation, at 180 °C (during) for 10 hours. Samples were collected at 0,
C. J. Steel, M. C. Dobarganes, D. Barrera-Arellano   +2 more
doaj   +1 more source

Some nutritional benefits of extra virgin olive oil

Grasas y Aceites, 1994
The benefits of olive oil could be related to its antioxidant potential. The aim of this study was to evaluate the "in vivo" antioxidant activity of different extra virgin olive oils (EVOO) produced in the Mediterranean area. One hundred and twenty rats
S. Ciappellano, P. Simonetti, F. Brighenti, G. Bermano, G. Testolin   +4 more
doaj   +1 more source