Optimization of Delignification Process of Reeds as Raw Materials for Making Art Paper

Art paper is a handicraft product made from fibers derived from plants. Plants that are used as the basic material for making art paper are plants that contain cellulose. One of plants that can be used as the basis for art paper are reeds. Reeds is one type of grass plant that can grow on land that has moist or dry characteristics. The aim of this research is making best-quality art paper from reed waste in order to tackle the environmental problem aftermath production process in reed drink industry. The laboratory activity of this research was carried out in August 2021 in laboratory of Universitas Brawijaya. For analysis, Design Expert 10 software with Response Surface method was used to get the optimum treatment in the process of delignification of reeds. There were two factors used in the Response Surface method, namely the raw material of reeds is the concentration of acetic acid with 85%, 90%, and 95% and cooking time of 30 minutes, 60 minutes, and 90 minutes. The optimum point of reeds delignification was the treatment with a 92.50% of acetic acid concentration and cooking time of 65.87 minutes which obtained cellulose and lignin of 77.501% and 7.352% respectively.