Şişecam's Oxyvit specializes in the production of Vitamin K3, vital for poultry, and sodium metabisulfite, used in the food, textile, mining, wastewater treatment and paper industries. Vitamin K3 is added as a supplement to feed, especially for poultry and livestock whose metabolism is unable to synthesize the vitamin. Sodium metabisulfite acts as a food preservative. Protects products such as cheese, fruit juice and sauces from fungal and bacterial attacks.