Table 1 Mass and component balances for trials using 3- and 72-min steaming
| Â | Initial wooda | 3-min steamingb | 72-min steamingc |
|---|---|---|---|
Combined severity factor |  | −1.16 | 0.57 |
Wood or fibre, kg/ODT wood | |||
 Mass | 1000 | 949 (10) | 838 (16) |
 Extractives | 8 (3) | 7 (2) | 15 (3) |
 Lignin | 290 (15) | 272 (15) | 278 (8) |
 Carbohydrates | |||
  Arabinosyl | 13 (2) | 7 (2) | 1 (1) |
  Galactosyl | 23 (3) | 19 (2) | 7 (1) |
  Glucosyl | 441 (13) | 440 (18) | 439 (15) |
  Xylosyl | 50 (4) | 45 (3) | 30 (2) |
  Mannosyl | 113 (3) | 98 (6) | 45 (3) |
Pressate | |||
 Concentration, g/L |  | 58 (5) | 127 (24) |
 Mass, kg/ODT wood |  | 40 (5) | 151 (10) |
 Total carbohydrates, kg/ODT wood |  | 24 (3) | 107 (11) |
  Arabinosyl |  | 4 (1) | 5 (1) |
  Galactosyl |  | 3 (0) | 13 (2) |
  Glucosyl |  | 4 (1) | 19 (2) |
  Xylosyl |  | 3 (1) | 12 (1) |
  Mannosyl |  | 11 (1) | 58 (6) |
 Ball-milled fibre digestibilityd,  % of glucosyl residues |  | 57 (4) | 73 (2) |
 Monomeric sugars, kg/ODT initial woode |  | 356 (24) | 501 (14) |
 Mainline |  | 327 (24) | 388 (17) |
 Pressate |  | 29 (5) | 114 (9) |