Abstract
Ultrasonic method for the extraction of juglone from walnut green husk wes performed. The content of juglone was determined by spectrophotometry at wavelength 421 nm based on juglone as standard. Ultrasonic time, the solvent to sample ratio were selected for the single-factor experiment. By orthogonal experiment, the optimum condition was determined as solvent to sample ratio was 40:1, extracting temperature was 25°C, extracting time was 25min. In this condition, the actual content of juglone could reach to 2.5574mg/g. In this paper, the crude extracts of juglone from walnut green husk was used to dye something. The results had shown that when sodium sulfate was used to as a mordant, the coloring degree would be the deepest. The coloring degree became deeper and deeper with the dyeing time increasing. There was no significant difference in coloring degree between 120 min and 160 min.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call