In this study, xylanase enzymes were made from a plant waste called Reutealis trisperma outer covering using a type of fungus called Trichoderma sp. Xylanase helps break down a certain kind of sugar in the waste into a simpler sugar. Scientists wanted to figure out the best time and amount of waste to produce the most xylanase. The experiment showed that using 8% of the waste and waiting for 60 hours produced the highest xylanase activity. During this process, they created 672.039 units of xylanase per milliliter, had about 0.590 milligrams of proteins per milliliter, and a specific activity of 1137.638 units per milligram. That means that this method can efficiently produce xylanase from plant waste, which could be useful for various purposes.