potassium salt of lactic acid (E270).
is hygroscopic and used in such products as sponge cakes and Swiss rolls
where its ability to absorb moisture helps to retain the moisture content
and thereby extend shelf-life.
is also used for its synergistic effect on other substances antioxidant
in sponge cakes and Swiss rolls, ice cream, jams, jellies, marmalades
should be aware that as the source, E270, Lactic
acid, is a naturally occurring animal product it could conceivably be
of animal origin.