The researchers aimed to find the best way to make sugar from Sida cordifolia plants. They tested different temperatures, acid amounts, and times to see what worked best. By using a special method called response surface methodology, they found the perfect conditions to get the most sugar. The best results came from using a temperature of 80°C, acid concentration of 3.50%, and a reaction time of 60 minutes. This means that Sida cordifolia plants could be a good source for making bioethanol and other useful chemicals.