"changed from a role to a processed material based on on Aug 22, 2011 dev call. Details see the tracker item: http://sourceforge.net/tracker/?func=detail&aid=3325270&group_id=177891&atid=886178\nModification made by JZ." . "A growth medium or culture medium is a substance in which microorganisms or cells can grow. Wikipedia, growth medium, Feb 29, 2008"@en . . . "Person: Jennifer Fostel, Jie Zheng"@en . "a processed material that provides the needed nourishment for microorganisms or cells grown in vitro." . . "culture medium" . "culture medium"@en . . "OBI"@en .