A research to know influence of mixing concentration of coconut water and sucrose concentration to coconut milk skim as nata de coco substrate has been conducted.The variation was TULSI-NEEM SOAP BAR taken from mixing coconut water (0%, 25%, 35% and 50% and 100% as control) and the sucrose concentration (0.5%, 1%, 1.5% and 2%).
Coconut milk skim boiled before used as substrat, yielded a coconut protein (blondo).The result of research showed that coconut milk skim Shoes can be used as nata de coco substrate with mixing coconut water and sucrose addition, mixing 50 % concentration coconut water representing optimum concentration.The content of crude fibre nata was yielded by higher concentration of sucrose, while mixing concentration coconut water do not influence crude fibre content.Keyword: Coconut milk skim, substrate, nata de coco.