Can Calcium Propionate be used in making confectionary?

Calcium propionate is a salt of the propionic acid. Propionic acid can also be found naturally in some kinds of foods, like the Emmental cheese (Swiss cheese), it occurs while cheese maturation. Calcium propionate and other salts of propionic acid are food additives, belonging to the preservatives category. Until today the authorized uses are confined to a narrow group of foods: It is mainly used in bakery products which are susceptible to mould development, like pre-packed bread and flour confectionary.

All food additives approved in the EU have been assigned an “E number”. It is mandatory to label food additives in the list of ingredients either by their E-number or their specific names. (E280 for propionic acid, E281 to E283 for sodium-, calcium and potassium propionate). Food additives are regulated by several EU directives, the Framework Directive 89/107/EEC, the Directive 95/2/EC on additives other than sweeteners and colours, and further directives on other classes of substances.

EU Directive 95/2/EC on additives
http://europa.eu.int/eur-lex/lex/LexUriServ/site/en/consleg/1995/L/01995L0002-19970404-en.pdf

General information on food additives (rules on labelling of additives, intake, etc):
http://europa.eu.int/comm/food/fs/sfp/addit_flavor/additives/index_en.html