Calciferol, also known as Vitamin D2, is a fat-soluble vitamin that is essential for calcium and phosphorus absorption, promoting bone health [1]. Typically sourced through the irradiation of ergosterol, a provitamin found in yeast and fungi, calciferol is commonly used in food fortification and dietary supplements to prevent or treat vitamin D deficiency [2]. It assists in maintaining proper immune function and cell growth [3].
The production process of calciferol involves several key steps. First, ergosterol is extracted from yeast or fungi, then purified and subjected to ultraviolet irradiation which converts ergosterol into previtamin D2, and subsequently isomerizes to form vitamin D2 [4]. The resulting calciferol undergoes crystallization and drying to achieve the final product form, which ensures stability and purity [5]. This process is carefully controlled to maximize the yield and maintain the quality of the vitamin [6].
Calciferol is widely used in various application scenarios, chiefly in the fortification of food products such as milk, cereals, and bread, to increase their nutritional content [7]. It is also a common ingredient in dietary supplements, available in various forms like capsules, tablets, and liquids, addressing vitamin D deficiency in populations with limited sun exposure or specific dietary needs [8]. Furthermore, calciferol plays a role in pharmaceutical applications, prescribed to manage conditions like rickets and osteomalacia [9].
Calciferol is typically packaged in airtight containers to protect it from light, moisture, and air, which can degrade its quality [10]. The product should be stored in a cool, dry place, away from direct sunlight and extreme temperatures, to maintain its stability and potency throughout its shelf life of 24 months [11]. Proper storage conditions are crucial to ensure that calciferol retains its beneficial properties until it is consumed [12].
Citations
[1] National Institutes of Health (NIH). "Vitamin D." NIH Office of Dietary Supplements, https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/
[2] Holick, M. F. "Vitamin D deficiency." New England Journal of Medicine, 357(3), 266-281 (2007).
[3] Aranow, C. "Vitamin D and the immune system." Journal of Investigative Medicine, 59(6), 881-886 (2011).
[4] Buttriss, J. L., & Lanham-New, S. A. "Vitamin D: current and future perspectives." British Nutrition Foundation Nutrition Bulletin, 37(3), 238-246 (2012).
[5] Jones, G. "Vitamin D: physiology." The Lancet, 372(9641), 767-769 (2008).
[6] Norman, A. W. "Vitamin D." Academic Press (2008).
[7] Calvo, M. S., et al. "Vitamin D fortification in the United States and Canada: current status and data needs." American Journal of Clinical Nutrition, 80(6), 1710-1716 (2004).
[8] Vieth, R. "Vitamin D supplementation, 25-hydroxyvitamin D concentrations, and safety." American Journal of Clinical Nutrition, 69(5), 842-856 (1999).
[9] Munns, C. F., et al. "Global consensus recommendations on prevention and management of nutritional rickets." The Journal of Clinical Endocrinology & Metabolism, 101(2), 394-415 (2016).
[10] Office of Dietary Supplements. "Vitamin D: Fact Sheet for Consumers." National Institutes of Health, https://ods.od.nih.gov/factsheets/VitaminD-Consumer/
[11] Food and Drug Administration (FDA). " dietary supplements." FDA, https://www.fda.gov/food/dietary-supplements
[12] World Health Organization (WHO). "Vitamin and mineral requirements in human nutrition." WHO, https://www.who.int/publications/i/item/9241546123
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