Abstract
The yield of maltose + maltotriose obtained when waxy-maize β-dextrin is treated with R-enzyme is 12.8%. In our previous Note,1 the yield was erroneously given as 5.3%. Additional evidence confirms that the molecule of the β-limit dextrin, and hence that of the parent amylopectin, is multiply branched on the random pattern postulated by K. H. Meyer. The different modes of action of R-enzyme on waxy-maize amylopectin, potato amylopectin, and animal glycogen allow the α-1 : 6-branch linkages to be classified in three groups, according to their positions in the molecule. An enzymic method of assay of basal-chain length is described.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3006-3010 |
| Number of pages | 5 |
| Journal | Journal of the Chemical Society (Resumed) |
| State | Published - 1956 |
ASJC Scopus subject areas
- Chemistry(all)
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Peat, S., Whelan, W. J., & Thomas, G. J. (1956). The enzymic synthesis and degradation of starch. Part XXII. Evidence of multiple branching in waxy-maize starch. A correction. Journal of the Chemical Society (Resumed), 3006-3010.