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I'm hoping someone can provide the specifics on the optimal conditions required for the complete acid hydrolysis (using $\ce{HCl}$) of potato starch?

I will be using an autoclave (~$\pu{15 psi}$ @ $\pu{120 degrees Celsius}$) to facilitate hydrolysation.

Specifically I'm after for the following information:

  • Concentration of dry starch required for the starch slurry.
  • Concentration of $\ce{HCl}$ required to adjust $\pu{pH}$ to required level.
  • What is the required $\pu{pH}$ for hydrolysation?
  • Time required to complete hydrolysation under above autoclave conditions.

Plus anything else that I may have missed....

Thanks!

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    $\begingroup$ I have suggested some MathJax to make your post look a little prettier. $\endgroup$ – JSCoder says Reinstate Monica Mar 29 '18 at 12:59
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    $\begingroup$ If you are able to measure the amount of the starch you hydrolized, why not to make some experiements to find by yourself your process' variables? You can make a little design experiment or just two or three experiments with a fixed volumes of starch and different volumes of HCl and then compare and try to find something optimum. $\endgroup$ – ParaH2 Mar 29 '18 at 15:06