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By: Richard D. Cummings One of the most complex polysaccharides in nature is pectin, found in plant cell walls (1,2). Pectin is a family of galacturonic acid-rich polysaccharides that includes homogalacturonan (HG), rhamnogalacturonan I (RG-I), and the substituted galacturonans rhamnogalacturonan II...

By: Richard D. Cummings While plant cellulose is very famous, many commercial products containing cellulose actually use bacterial cellulose. It is often a part of bacterial biofilms, typically of Gram negative (1). This form of cellulose can be highly purified compared to preparations of plant...

By: Richard D. Cummings One of the most unusual glycoproteins and one used commonly in biological research and immunology is KLH, which is derived from the giant keyhole limpet ( Megathura crenulata). The keyhole limpet is a giant aquatic snail (gastropod) with a cone-shaped shell (shell length can...