Biotech enzymes are also used in starch processing and the conversion of grains. Huge volumes of corn and other grains are converted enzymatically to sweeteners, such as high fructose corn syrup, and also into fuel ethanol. Another example of enzymes at work is indigo dye, which is used in the production of denim and is the world's largest volume dye product. Originally made exclusively from plants, most of the world's indigo today is made by chemical synthesis. The process requires harsh compounds such as cyanide and formaldehyde, which generate hazardous waste.
New methods use enzymes to make indigo from glucose.
Liquid thermostable a -amylase. Liquid glucoamylases for saccharification. Liquid glucoamylase for saccharification with particular effectiveness in wet milling operations. Liquid glucoamylase for saccharification of wheat starch. Liquid glucose isomerase concentrate for high fructose syrup production.