A
jellylike substance found in
plants which consists of chains of
galacturonic acid (a
molecule derived from the
sugar galactose). It is often used in certain foods like jams and jellies and in
pharmaceutical preparations. At the right
pH, it will form a
gel with
sugar.
From the BioTech Dictionary at http://biotech.icmb.utexas.edu/. For further information see the BioTech homenode.