A structure is proposed for xylan hydrate as a result of investigations by x-ray fiber diffraction and computer-aided chain-packing methods. The unit-cell dimensions are a = b = 9.16 A, c (fiber axis) = 14.85 A, y = 120" and the proposed anti-parallel chain arrangement corresponds to a space group s
Structural polymorphism of (1→4)—β—d—Xylan
✍ Scribed by H. Chanzy; M. Dube; R.H. Marchessault
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 499 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0032-3861
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The nonbonded interaction energy was computed for xylobiose and xylan as a function of the dihedral angles (+,$). The energy maps indicate that interactions higher than the second neighbor are negligible. Of the four possibilities, the left-handed helical conformation with (+,$) = (63",25") is of th
## Abstract The enzymatic degradation of β(1 → 4) xylan single crystals with xylanases was investigated by electron microscopy and electron diffraction. The enzyme attack takes place at the edge of the crystals and progresses towards their centers. This is consistent with an __endo__‐enzyme mechani