Monascus purpureus is a species of mold that is purplish-red in color. It is also known by the names ang-khak rice mold, corn silage mold, maize silage mold, and rice kernel discoloration.

Jiuqu, also simply known as qu, is a type of dried fermentation starter used in the production of traditional Chinese alcoholic beverages. The word jiuqu specifically refers to a type of yeast used to