| http://www.w3.org/ns/prov#value | - y from 0.1 to 2% by weight; and water activity depression, as by including glycerol, propylene glycol, polyethylene glycol, sorbitol, sugars and salts, sufficient to reduce the water activity from 1 to less than 0.9, preferably to less than 0.85 and most preferably less than 0.8.
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