Product Introduction
dl-alpha-tocopherol acetate is a synthetic form of vitamin E, an essential nutrient and antioxidant [1]. The main component, dl-alpha-tocopherol, is esterified with acetic acid to form the acetate derivative, enhancing its stability and resistance to oxidation during food processing and storage [2]. Commonly used in food products, dietary supplements, and animal feed, dl-alpha-tocopherol acetate serves as a nutritional additive to prevent vitamin E deficiency and acts as an antioxidant to protect fats and oils from rancidity [3]. It is also used in cosmetics for its antioxidant properties, which help protect the skin from free radical damage [4].
Production Process
The production of dl-alpha-tocopherol acetate typically involves the esterification of dl-alpha-tocopherol with acetic anhydride or acetyl chloride. This reaction is usually conducted in the presence of a catalyst, such as sulfuric acid or pyridine, to facilitate the esterification [5]. The reaction mixture undergoes purification steps, including washing, neutralization, and distillation, to remove unreacted materials and by-products [5]. The final product is then refined to meet purity standards required for food, feed, or cosmetic applications [5].
Application Scenarios
dl-alpha-tocopherol acetate sees widespread use across various industries due to its stability and antioxidant properties. In the food industry, it is added to vegetable oils, spreads, and cereals to enhance nutritional value and prevent oxidation [6]. In animal feed, it is incorporated to ensure adequate vitamin E intake, which is crucial for immune function and reproductive health in animals [7]. The cosmetic industry utilizes dl-alpha-tocopherol acetate in skincare products, such as creams, lotions, and serums, to protect the skin from oxidative stress and environmental damage [8].
Packaging and Storage
dl-alpha-tocopherol acetate is typically packaged in airtight containers, such as drums or pails, to prevent exposure to air and moisture [9]. Storage should occur in a cool, dry place, away from direct sunlight and heat, to maintain its stability and prevent degradation [9]. Recommended storage temperatures generally range from 15°C to 25°C [9]. Following these guidelines helps ensure the product retains its quality and efficacy throughout its shelf life [9].
Citations
[1] Institute of Medicine (US) Panel on Dietary Antioxidants and Related Compounds. Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids. Washington (DC): National Academies Press (US); 2000.
[2] Weber, D., & Birringer, M. (2019). Vitamin E Signalling and Cell Communication. Vitamins and Hormones, 110, 143–164.
[3] EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP). (2013). Scientific Opinion on the safety and efficacy of vitamin E compounds (α-tocopherol, α-tocopheryl acetate and α-tocopheryl succinate) as feed additives for all animal species. EFSA Journal, 11(11), 3440.
[4] Thiele, J. J., & Ekanayake-Mudiyanselage, S. (2007). Vitamin E in human skin: organ-specific physiology and considerations for its use in dermatology. Molecular Aspects of Medicine, 28(5-6), 646–667.
[5] Ranalli, G., Gerarduzzi, V., Taddei, M., Sambri, L., & Gioielli, A. (2002). Transesterification and direct esterification of glycerol with vegetable oils: Synthesis and characterization of glycerol monoesters. Journal of the American Oil Chemists' Society, 79(2), 115–119.
[6] Przygodzka, M., Zielinski, R., Ciesarowska, A., & Kruszewski, B. (2014). The effect of tocopherols on the oxidative stability of vegetable oils during heating. Journal of the American Oil Chemists' Society, 91(11), 1931–1940.
[7] Lauridsen, C., Jensen, S. K., & Skibsted, L. H. (2002). Effect of Dietary Vitamin E on the Colour Stability of Pork Meat in Modified Atmosphere Packaging. Meat Science, 60(3), 269–272.
[8] Darr, D., Dunston, S., Faust, T., & Pinnell, S. (1996). Effectiveness of antioxidants (vitamin C and E) with and without sunscreens as topical photoprotectants. Acta dermato-venereologica, 76(4), 264–268.
[9] Akzo Nobel Functional Chemicals. (2010). Perkadox GB-50: Safety Data Sheet.
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