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Table 1 d-Xylose consumption and product formation (biomass, ethanol, and xylitol) (g L−1) in YPX fermentation assays (d-xylose, 40–50 g L−1) with Spathaspora species under moderate and severe oxygen-limited conditions, respectively

From: Exploring xylose metabolism in Spathaspora species: XYL1.2 from Spathaspora passalidarum as the key for efficient anaerobic xylose fermentation in metabolic engineered Saccharomyces cerevisiae

Oxygen-limited conditions Yeast species Strain number Time of maximum ethanol production (h) d-xylose consumption (%) r s (g g CDW −1  h−1) Biomass (gCDW L−1) Y x/s (g g−1) Ethanol (g L−1) \(Y_{{{\text{p}}/{\text{s}}}}^{\text{et}}\) (g g−1) r et (g g CDW −1  h−1) Xylitol (g L−1) Y p/s xy (g g−1)
Moderate Spathaspora arborariae UFMG-CM-Y352T 72 99.2 0.28 12.1 ± 0.6 0.24 10.6 ± 0.1 0.21 0.12 6.4 ± 0.1 0.13
Sp. brasiliensis UFMG-CM-Y353T 60 91.5 0.29 8.3 ± 0.6 0.18 3.7 ± 0.5 0.08 0.03 22.9 ± 0.2 0.46
Sp. passalidarum UFMG-CM-Y469 18 99.3 0.45 8.3 ± 0.7 0.19 20.2 ± 0.1 0.47 0.22 1.1 ± 0.0 0.03
Sp. roraimanensis UFMG-CM-Y477T 48 100 0.43 4.8 ± 0.1 0.09 5.8 ± 0.3 0.11 0.07 22.7 ± 0.3 0.43
Sp. suhii UFMG-CM-Y475T 48 100 0.44 4.7 ± 0.2 0.10 5.9 ± 0.1 0.12 0.09 22.4 ± 0.2 0.46
Sp. xylofermentans UFMG-CM-Y478T 48 55.4 0.18 8.3 ± 0.8 0.31 2.6 ± 0.2 0.10 0.02 9.0 ± 0.8 0.33
Sp. passalidarum CBS 10155T 18 99.1 0.43 8.9 ± 0.2 0.21 20.3 ± 0.2 0.48 0.21 0.6 ± 0.0 0.02
Severe Sp. arborariae UFMG-CM-Y352T 120 99.3 0.32 5.5 ± 0.0 0.11 16.0 ± 0.72 0.32 0.11 9.0 ± 0.03 0.18
Sp. brasiliensis UFMG-CM-Y353T 72 31.5 0.19 3.2 ± 0.6 0.21 2.6 ± 0.82 0.16 0.09 11.9 ± 0.88 0.47
Sp. passalidarum UFMG-CM-Y469 24 99.4 0.69 4.1 ± 0.1 0.10 20.5 ± 0.6 0.48 0.30 1.4 ± 0.01 0.03
Sp. roraimanensis UFMG-CM-Y477T 144 100 0.39 5.1 ± 0.6 0.11 3.0 ± 0.1 0.06 0.02 27.4 ± 0.4 0.56
Sp. suhii UFMG-CM-Y475T 14.8 0.16 0.3 ± 0.1 0.04 6.4 ± 0.6 0.92
Sp. xylofermentans UFMG-CM-Y478T 144 97.5 0.18 6.9 ± 0.7 0.15 3.7 ± 0.4 0.08 0.02 24.4 ± 1.3 0.51
Sp. passalidarum CBS 10155T 24 99.4 0.57 4.5 ± 0.2 0.11 20.5 ± 0.1 0.48 0.28 1.0 ± 0.2 0.02
  1. r s specific xylose consumption rate, r et specific ethanol production rate, Y x/s biomass yield; \(Y_{p/s}^{et}\) ethanol yield, \(Y_{p/s}^{xy}\) xylitol yield