Table 1 Ratio of selected lignin constituents with a 2-fold comparable difference and p-value < 0.05 after fermentation of hot water pretreated T1-3 switchgrass by C. bescii or C. obsidiansis versus C. thermocellum (microbe effect); transgenic (TG); wild-type (WT) switchgrass
Aromatic Constituent (μg / mL) sorbitol equivalents | C. bescii(TG) /C. thermocellum(TG) | C. obsidiansis(TG) /C. thermocellum(TG) | C. bescii(WT) /C. thermocellum(WT) | C. obsidiansis(WT) /C. thermocellum(WT) | ||||
|---|---|---|---|---|---|---|---|---|
Ratio | P-value | Ratio | P-value | Ratio | P-value | Ratio | P-value | |
arabitol | 0.11 | 0.00 | 1.27 | 0.28 | 0.086 | 0.00 | 1.19 | 0.00 |
p-coumaric acid | 0.43 | 0.00 | 0.31 | 0.00 | 0.26 | 0.01 | 0.19 | 0.00 |
C5-sugar-sinapyl conjugate | 67.17 | 0.00 | 8.58 | 0.00 | 72.34 | 0.01 | 6.61 | 0.00 |
5-hydroxyconiferyl alcohol | 17.01 | 0.00 | 19.66 | 0.00 | 16.66 | 0.00 | 11.92 | 0.00 |
coniferyl alcohol | 3.68 | 0.00 | 2.49 | 0.00 | 3.44 | 0.00 | 1.97 | 0.00 |