Fructosyl-nystose

Fig. 1 (A) Chromatographic separation of sugars. Track 1 fructose, 2 sucrose, 3 glucose, 4 mixture of the substances in tracks 1-3, 5 mixture of substances in tracks 1-3 and 6, 6 Fructo-oligosaccharides, 7 1-kestose, 8 mixture of glucose, maltose, maltotriose and maltotetraose. (B) Absorption scan of track 5 with 200 ng each substance per chromatogram zone 1 = fructosyl-nystose, 2 = nystose, 3 = 1-kestose, 4 = fructose, 5 = sucrose, 6 = glucose.

Fructosyl-nystose lb 423,424 Fuberidazol lb 33 Fuc-GMl lb 243 Fuchsin, reagent la 329 Fucose lb 34... 

Electron diffraction assessments of single crystals from inulin fractions indicate two antiparallel six-fold helices (Andre et al., 1996) a five-fold model has also been proposed (Marchessault et al., 1980). The hemihydrate molecule contains one water molecule for each two fructosyl units, while the monohydrate has one water molecule per fructosyl unit. When intermolecular hydrogen bonds are present, however, there is no evidence of intramolecular hydrogen bonding in the crystals. Crystal structures of 1-kestose (GF2) (Jeffrey and Park, 1972), nystose (GF3) (Jeffrey and Huang, 1993), and cycloinulohexaose (cF6) (Sawada et al., 1990) have been reported. 

A fructan. See Fructans, F-43. Produced by the action of yeast invertase on a cone, sucrose soln. Constit. of the grasses Lolium multiflorum and Arrhe-natherum elatius. Widely distributed in cereals and other grasses. Also isol. from onion (Allium cepa). Component of Neosugar which is a mixt. with Nystose, N-87 and its 1-fructosyl deriv. used as a dietary constit. for improvement of intestinal flora. 

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