Rice bran, a byproduct of rice processing, was used to make sugar with the help of a fungus called Rhizopus oryzae. The researchers wanted to find the best amount of rice bran to use for making sugar. They found that using 20% rice bran produced the most sugar. The amount of starch decreased during the process, while the sugar amount was highest on the first day. The pH level decreased, and the amount of fungus increased during the process.