@article{(Open Science Index):https://publications.waset.org/pdf/9999716, title = {Effect of Mineral Ion Addition on Yeast Performance during Very High Gravity Wort Fermentation}, author = {H. O. Udeh and T. E. Kgatla and A. I. O. Jideani}, country = {}, institution = {}, abstract = {The effect of Zn2+, Mg2+, and Ba2+ on Saccharomyces pastorianus performance was evaluated in this study at independent and three variable combinations. After 96 h of fermentation, high wort fermentability (%F) = 29.53 was obtained in medium containing 900:4 ppm Mg2+ + Ba2+. Increased ethanol yield 7.35 %(v/v) and 7.13 %(v/v) were obtained in media containing 900:4 ppm Mg2+ + Ba2+ and 12:900 ppm Zn2+ + Mg2+. Decrease %F = 22.54 and ethanol yield 6.18 % (v/v) was obtained in medium containing 12:4 ppm Zn2+ + Ba2+. In media containing the individual ions, increased %F = 27.94 and 26.03 were recorded for media containing 700 ppm Mg2+ and 2 ppm Ba2+ , with ethanol yield of 7.88% (v/v) and 7.62% (v/v) respectively. Reduced %F and ethanol yield was observed for 10 ppm Zn2+ and 4 ppm Ba2+ media. The impact of Ba2+ at 1 and 2 ppm was significant. }, journal = {International Journal of Bioengineering and Life Sciences}, volume = {8}, number = {11}, year = {2014}, pages = {1208 - 1216}, ee = {https://publications.waset.org/pdf/9999716}, url = {https://publications.waset.org/vol/95}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 95, 2014}, }