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Table 4 Comparison of productivities and fermentative yields for sugar cane juice (SCJ) fermentations with the two industrial yeast strains S. cerevisiae PE-2 and CAT-1 at various °Brix values following supplementation with ammonium phosphate or urea

From: Conditions promoting effective very high gravity sugarcane juice fermentation

SCJ °Brix Yield (%) Productivity (g L−1 h−1)
PE-2 CAT-1 PE-2 CAT-1
Ammonium phosphate
 25 85.67 ± 0.02 91.35 ± 0.03 4.65 ± 0.15 4.63 ± 0.30
 30 90.63 ± 0.33 66.73 ± 0.15 5.20 ± 0.26 4.26 ± 0.21
 35 78.67 ± 0.77 88.03 ± 1.74 4.67 ± 0.11 4.77 ± 0.15
Urea
 25 84.42 ± 0.05 90.81 ± 0.06 4.58 ± 0.02 4.72 ± 0.47
 30 90.25 ± 0.42 91.32 ± 0.43 4.92 ± 0.11 5.63 ± 0.28
 35 93.17 ± 5.18 83.26 ± 5.96 4.19 ± 0.19 4.57 ± 0.02
  1. Values were calculated as described in the Methods section using results obtained at the end of the sixth 24-h cycle. Results given are the average plus or minus the standard deviation of three independent assays