Selected from fruit shells, this product undergoes physical carbonization, high-temperature gas activation, followed by acid cooking, water washing, drying, and screening processes. It is refined to be used in continuous decolorization of monosodium glutamate absorption towers, enhancing the quality of MSG while reducing the consumption of powdered activated carbon. It is also suitable for continuous liquid-phase decolorization and purification in industrial tower columns, and can be applied in the food industry for the decolorization, deodorization, and refinement of sugar, alcohol, oil, and beverages.