| Abstract: | In processing potatoes, wheat, tapioca, maize or other raw materials containing starch, considerable amounts of valuable substances are unavoidably lost into the waste-streams. The Symba process permits utilisation of these wastes. It converts starch and other carbohydrates into Candida and Torula yeast by the symbiotic growth of two yeasts, Endomycopsis fibuliger and Candida utilis, on these materials. Endomycopsis produces the amylases which break down the starch into sugars. Candida utilis being unable to feed on starch, quickly “steals” the sugar, thereby growing and producing a yeast product which consists mainly of Candida utilis. By this symbiotic action most of the carbohydrates in the starchy waste streams are utilised. The process could be applied for waste waters from the manufacture of many different products. The first commercial plant was built in Sweden at a factory processing potatoes — mostly in the form of potato granules and “French Fries”. Waste streams as well as solid wastes from the factory are treated, streams are purified to 90%. |
