Bioresources and Bioprocessing

Table 2 The concentrations of monosaccharides and inhibitors in SECS liquor and different hydrolysates

From: Engineering a wild-type diploid Saccharomyces cerevisiae strain for second-generation bioethanol production

	SECS liquor	SECS hydrolysate (Hy1)^a	SPPR hydrolysate (Hy2)^b
Main monosaccharides (g L⁻¹)
Glucose	9.87 ± 0.07	86.60 ± 0.160	54.94 ± 0.50
Xylose	36.54 ± 0.28	39.09 ± 0.06	23.79 ± 0.19
Solubilized lignin	3.24 ± 0.01	4.13 ± 0.02	–
Main inhibitors
Weak acids (g L⁻¹)
Formic acid	ND	ND	ND
Acetic acid	4.77 ± 0.14	4.52 ± 0.01	0.00 ± 0.00
Levulinic acid	ND	ND	ND
Furan aldehydes (g L⁻¹)
Furfural	0.37 ± 0.01	0.47 ± 0.01	–
HMF	0.71 ± 0.02	0.66 ± 0.03	–
Total phenolics (mmol L⁻¹)	19.63 ± 0.29	26.68 ± 0.61	–

Values are given as the averages and standard deviations of three independent measurements
^aHy1 refers to the hydrolysate from SECS supplied by Novozymes
^bHy2 refers to the hydrolysate from SPPR supplied by the Shandong Tranlin Group

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