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Table 3 Summary of HTPH results for Miscanthus genotypes displaying highest and lowest sugar yields

From: Rapid selection and identification of Miscanthus genotypes with enhanced glucan and xylan yields from hydrothermal pretreatment followed by enzymatic hydrolysis

Description Pretreatment time (min) ** Miscanthus sample No. Compositions (g/100 g dw) Sugar yield
Glu Xyl Lig Glu Xyl Glu + Xyl
Highest yields
Glu + xyl mass yield* 0 70 43.6 26.6 17.7 10.2 3.5 13.7
35 112 42.3 25.7 21.7 35.8 20.8 56.6
% of Glu + xyl theoretical yield# 0 4 37.8 20.1 15.5 26.4 15.0 22.4
35 229 41.1 22.6 22.6 87.1 85.4 86.5
Glu mass yield 0 70 43.6 26.6 17.7 10.2 3.5 13.7
35 229 41.1 22.6 22.6 35.8 19.3 55.1
% of Glu theoretical yield 0 4 37.8 20.1 15.5 26.4 15.0 22.4
35 155 29.9 22.7 22.0 77.9 73.6 76.1
Xyl mass yield 0 70 43.6 26.6 17.7 10.2 3.5 13.7
35 22 42.6 26.8 20.4 34.9 20.9 55.8
% of Xyl theoretical yield 0 152 32.2 20.8 20.1 24.8 16.2 21.4
35 191 37.7 22.7 19.5 80.1 86.1 82.4
Lowest yields
Glu + xyl mass yield* 0 33 43.7 26.4 19.8 1.4 1.6 3.0
35 140 36.6 24.3 22.9 18.6 13.3 31.8
% of Glu + xyl theoretical yield# 0 33 43.7 26.4 19.8 3.1 6.2 4.2
35 141 39.0 23.7 23.5 48.2 57.2 51.6
Glu mass yield 0 33 43.7 26.4 19.8 1.4 1.6 3.0
35 140 36.6 24.3 22.9 18.6 13.3 31.8
% of Glu theoretical yield 0 33 43.7 26.4 19.8 3.1 6.2 4.2
35 141 39.0 23.7 23.5 48.2 57.2 51.6
Xyl mass yield 0 259 40.9 20.7 24.1 5.2 0.7 5.9
35 140 36.6 24.3 22.9 18.6 13.3 31.8
% of Xyl theoretical yield 0 259 40.9 20.7 24.1 12.8 3.3 9.6
  35 140 36.6 24.3 22.9 50.7 54.7 52.3
  1. *mass yield calculated on basis of 100 g dry weight raw Miscanthus.
  2. #percent of theoretical yield was calculated on basis of the amount of original glucan or xylan contents in raw Miscanthus.
  3. ** The highest or lowest yields of HTPH for the pretreatment of 0 or 35 min.
  4. Glu-glucan, xyl-xylan, lig-lignin.
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Biotechnology for Biofuels

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