Starch, /3-amylase action constitution

Now as the limit dextrins are stable toward the amylases, it seems sound to assume that they are built according to another scheme than are those parts of the starch which 3ueld maltose. In order to explain the incomplete saccharification and the formation of the limit dextrins, the author has assumed - that, although the starch molecules are built substantially according to the maltose scheme, there are at certain intervals anomalies of one kind or other which constitute hindrances to the enzyme action. Since in most cases 70 to 80% of maltose is formed from starch, it must be concluded that the normal action of the amylases is the opening of 1,4-a-D-glucosidic links. When the constitution of the chain differs in some way from that of maltose, the enzyme cannot attach itself to the anomalous part of the chain and no hydrolysis occurs. The author assumed that when, for instance, /5-amylase acts on starch, the... 

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