Kinetic parameter of alfa-amylase and glucoamylase enzymatic reaction on the glucose yield from hydrolized processes of tapioca solid waste

In tapioca solid waste treatment, the extraction process contains high concentration of starch that can be used to produce high quality products, e.g., bio ethanol or other alternative energy sources. A study on using the solid waste of tapioca industries was carried out, with emphasis on determining the composition of α- and gluco-amylase enzymes on the hydrolized processes of the solid waste of tapioca. The exact composition from both enzymes could increase the glucose yield. The best ratio between α- and gluco-amylase enzymes were 0.5%:0.5% with 1 hr liquefaction. The highest glucose reached 8.468 % and yielded 0.892 g glucose/g starch with starch conversion of 59.94%. This is an abstract of a paper presented at the 7th European Congress of Chemical Engineering-7 and 19th International Congress of Chemical and Process Engineering CHISA (Prague, Czech Republic 8/28/2010-9/1/2010).