extremely significantP < 0.00001
The factors affected the degree of Artemisia polysaccharide extraction differently, the primary term affected D (<0.0001) > C (0.0076) > A (0.0023) > B (0.384), the interaction AB, AC, AD, BC, BD were not significant ( P > 0.05), CD was significant ( P < 0.005), the secondary terms A 2 , B 2 , C 2 , D 2 were extremely significant ( P < 0.00001).