In this study, researchers aimed to make lots of bioethanol from sugarcane waste. They tried a new method to break the waste down into sugars that can be fermented easily. By using a special chemical treatment with K3PO4, they were able to remove tough parts of the sugarcane, making it easier to turn into biofuel. This treatment didn't take away xylose, a sugar that can also be used to make bioethanol. They found that almost all the xylose could be turned into biofuel too, leading to almost 100% sugar conversion. The leftover liquid from the process was used as a fertilizer for growing more plants. This study suggests a smart and eco-friendly way to get a lot of bioethanol from sugarcane waste while helping to make more plants grow better.