Process of preparing sodium-copper chlorophyllide and pectin with sisal residue

The present invention discloses comprehensive utilization of sisal residue. The wet sisal residue after fiber extraction is extruded, soaked in alcohol and filtered to obtain extracted liquid for preparing chlorophyll and extracted residue for preparing pectin. The extracted liquid after alcohol recovery is extracted with ethyl acetate to obtain chlorophyll; and the chlorophyll is reacted with copper sulfate and saponified with sodium hydroxide to obtain sodium-copper chlorophyllide. The extracted residue is ultrasonically washed, dilute hydrochloric acid washed, enzyme deactivated and hydrolyzed with 0.4 % concentration hydrochloric acid solution to obtain hydrolysate; and the hydrolysate is salted out with iron salt or copper salt, desalted, decolorized and dried to obtain pectin. The present invention raises the utilization value of sisal and is environment friendly.