The influence of CDTA and DPTA on ethanol production from sugar cane molasses using Saccharomyces cerevisiae

✍ Scribed by Oderinde, R. A. ;Okogun, J. I. ;Esuoso, K. O.

• Publisher: John Wiley and Sons
• Year: 1990
• Tongue: English
• Weight: 235 KB
• Volume: 34
• Category: Article
• ISSN: 0027-769X
• DOI: 10.1002/food.19900340221

✦ Synopsis

Abstract

Effects of complexing agents on the sensitivity of ethanol production using Saccharomyces cerevisiae were investigated using trans‐1,2‐diamino‐cyclohexane‐N,N,N′,N′‐tetraacetic acid (CDTA) and diethylene triamine pentaacetic acid (DPTA). Addition of 600 ppm CDTA during inoculation produces a maximum stimulation; ethanol production at this concentration was 1.5% (v/v) more than the control cultures (∽ 6%). 1000 ppm CDTA produces maximum effect during propagation which was 2.3% more than the control cultures. When DPTA was introduced during inoculation, 800 ppm DPTA produces a maximum effect, which was 2.9% more than the control cultures. 200 ppm DPTA produces a maximum stimulatory effect of 1.0% more than the control cultures. No significant effect was observed when DPTA was added during fermentation but 700 ppm CDTA increased ethanol production by 1.3% more than the control cultures.