Biosugar Production from Algae Spirogyra peipingensis by acid and enzymatic hydrolysis processes

Abstract

Spirogyra peipingensis , green algae, is a suitable feedstock for biosugar production. This study analyzes biosugar production by the hydrolysis of S. peipingensis conducted by acid and enzymatic hydrolysis processes. Acid hydrolysis process was conducted by H 2 SO 4 0,2 M acid with various concentrations (0,2,4,6,8, dan 10%). Enzymatic hydrolysis process was held by using amylase enzyme with vary concentrations (0,25,50,75,100 dan 125 KNU). The result showed that the hydrolysis process with H 2 SO 4 acid generates higher sugar concentration than compared with the amylase enzyme. Enzymatic hydrolysis method produces the optimum sugar concentration which is made up 0,45 g/g in adding α-amylase enzyme 50 KNU. In contrast, hydrolysis acid process able to produce the optimum sugar concentration in 0,55 g/g in adding of H 2 SO 4 10% 0,2 M acid.

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