Tri Widjaja, Soeprijanto, Ali Altway, Setiyo Gunawan, Raden Darmawan : Ethanol Production from molases using immobilized cells Ca Alginate and K-Carrageenan by mutaion Zymomomas mobilis in a packed bed bioreactor

Prof. Dr. Ir. Tri Widjaja M.Eng.
Prof. Dr. Ir. Soeprijanto M.Sc.
Prof.Ir. Ali Altway M.Sc
Setiyo Gunawan S.T., Ph.D
Raden Darmawan S.T., M.T.

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Type

Jurnal Internasional

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Abstract

The aim of this experiment was to study the effect of total sugar concentration using Ca-Alginate and K Carrageenan immobilized cells of mutation Zymomonas mobilis on packed-bed and batch bioreactor performance for ethanol production. This experiment was carried out with total sugar concentrations of 14, 16, and 18% (v/v) and immobilized cells of Ca-Alginate and K-carrageenan at a concentration of 2% (w/v). The results revealed that the total sugar concentration influenced the concentration and productivity of ethanol. Immobilized Ca-Alginate cells produced the maximum ethanol concentration, yield and productivity at 60.83 g/L, 43.94% and 24.33 g/L.hr, respectively. Meanwhile, immobilized K-Carrageenan cells produced the maximum ethanol concentration, yield and productivity at 60.54 g/L.hr, 41.85% and 24.22 g/L.hr, respectively. In a batch fermentation process showed that the maximum ethanol concentration, yield and productivity were 63.47 g/L, 43.79%, 0.88 g/L.hr, respectively.