Dextrin homologizing reaction

Fig. 23 gives graphic evidence that homologizing reactions have occurred. The initial coupled product (7-ose) through further reactions has led to all the oligosaccharides from 2-ose to 10-ose higher dextrins were apparent but not resolved on the radioautograph. 

The enzymatic synthesis of cyclic dextrins occurs during the action of macerans amylase on starch by a cyclizing mechanism while the synthesis of linear oligosaccharides occurs during the action of the enzyme on the dextrins and appropriate co-substrates by coupling and homologizing reactions. 

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