the fractional space ( s value ) that was accessible to passive permeation was probed with a variety of mono- and divalent salts , mono- and disaccharides , polyols , substrates and products of beta-fructofuranosidase ( ec 3.2.1.26 ) and acid phosphatase ( ec 3.1.3.2 ) , and a cross-linked polymer of sucrose ( ficoll 400 ) .
C0012611
disaccharides
C0038636
sucrose