OPERATIONAL STABILITY OF IMMOBILIZED S. CEREVİSİAE IN A PACKED BED REACTOR FOR VARIOUS FERMENTATİON MEDIA AND COMPARISON OF FREE AND IMMOBILIZED MIC- ROORGANISM SYSTEMS

Yıl 1988, Cilt: 34 Sayı: 01.02, 76 - 82, 01.01.1899

Ülkü Mehmetoğlu

https://doi.org/10.1501/Commub_0000000489

Öz

Using various fermentation media, ethyl alcohol production in a packed bed reactor with S. cerevisiae, immobilized in calcium alginate gel, was investigated. For the rich medium, productivity changed between 17 and 21 g /1. hr, during a period of 52 days. When a poor me- dium was used, during a period of 10 days productivity decreased to 72 % of the initial value and, when molasses solution was used, the productivity decreased to 33 % of the initial value. The productivity of the immobilized system turned out to be 7 to 40 times of the free system, depending on the residence time.

Anahtar Kelimeler

Using various fermentation, immobilized in calcium, The productivity

Kaynakça

• Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering