Polarised LM of vitamin E crystals

Numéro d’image : 11521247
Polarised LM of vitamin E crystals
Vitamin E. Polarised light micrograph of crystals of vitamin E (tocopherol). This is an essential vitamin for fertility and reproduction. Its structure is that of the tocopherols,methylated derivatives of tocol. The alpha form of tocopherol is properly known as 5,7,8-trimethyltocol; this alpha form has the strongest vitamin E activity. Vitamin E is widely distributed in vegetable lipids and the body fat in animals; the richest sources are seed embryos and their oils,and green leaves. The vitamin protects unsaturated fats from oxidation. As tocopherol is widely distributed in the diet,vitamin E deficiency is rare. Magnification: x26 at 6x7cm size. x45 at 4x5ins
Licence : Droits gérés
Crédit: Science Photo Library / Pasieka, Alfred
Taille de l’image : 3877 px × 4673 px
Model Release : Non requis
Property Release : Non requis
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