PENGARUH JENIS DAN KONSENTRASI ASAM TERHADAP NILAI DEXTROSE EQUIVALENT PADA HIDROLISIS PATI UBI TALAS (Colocasia esculenta L. Schoot)
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Abstract
This research aims to 1) find out the effect of acid concentration and interaction of the Dextrose
equivalence (DE) value hydrolysis starch, 2) to find out the type and concentration of acid that
produces highest DE value starch hydrolysis results. This study used a factorial Randomized Block
Design with factorial pattern. The first factor is the type of acid solvent consisting of 3 levels
hydrolysis of starch with HNO
3
3M, hydrolysis of starch with H2SO4
3M, hydrolysis of starch
HCl 3M and the second factor is : 5%, 6%, 7%. Each treatment was divided into two according by
the time of implementation. Variables observed that reducing sugar, total sugar, and Dextrose
equivalence (DE). Determining the best treatment done with the analysis of the DE value of taro
starch. Treatment acids very significant effect on the value of hydrolyzed taro starch DE while the
acid concentration and interaction treatment did not significantly affect on the value of taro starch
DE hydrolyzed. Starch hydrolysis involves the kinds of 3M sulfuric acid at a concentration of 7%
is the best treatment to the value of Dextrose Equivalence (DE) highest, the number of 37,93%.
Keywords: hydrolysis, acid, DE, starch, taro
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