Summary
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(1)
A dilatometric study of the hydrolysis of soluble starch with takadiastase has been carried out in the two-bulb dilatometer.
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(2)
The depression per millimol release of maltose and the depression per degree fall in rotation are found to be 4·0 and 10·7 respectively.
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(3)
Potato starch and the amylopectins prepared by two distinctly different methods have also been subjected to similar dilatometric studies. The depressions per millimol release of maltose are 4·0, 3·6 and 3·7 respectively. In the case of amylopectic prepared by Ekert and Marzin’s method, the depression per degree fall in rotation is 10·7, a value which agrees very well with that for soluble starch.
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(4)
It is suggested that the dilatometer offers a convenient method for studying the relative digestibilities of starches from various sources.
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References
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(Communicated by Prof. V. Subrahmanyan,d.sc., f.i.c.)
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Sreerangachar, H.B. Dilatometric studies in the enzymic hydrolysis of polysaccharides. Proc. Indian Acad. Sci. 2, 333–341 (1935). https://doi.org/10.1007/BF03039970
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DOI: https://doi.org/10.1007/BF03039970