Acid mucin is best demonstrated by the stain -
High-Yield Explanation
Mucin is produced by epithelial cells of mucous membrane & mucous glands, as well as by some connective tissues
Stains for mucin
Mucicarmine
Alcian blue.
Note :- Epithelial cell mucin stains positively with periodic acid-Schiff (PAS), while connective tissue mucin does not.