Rhamnoarabinosyl and rhamnoarabinoarabinosyl side chains as structural features of coffee arabinogalactans

Coffee beans contain 7% of a water soluble highly branched type II arabinogalactan-protein (AGP) having rhamnoarabinosyl and rhamnoarabinoarabinosyl side chains. These side chains are reported for the first time as structural features of plant AGPs.