Structural studies of the hemicellulose A from the cork of Quercus suber

Carbohydrate ~~ea~~,

161 (1987) 167-170 m-

Unive~si~ of Valence, E~~~sot,

; ac~pted for publi~tion, O~ober lOth, 1

A 1.42 2.71 2.35

relative to that of 1,5-d

a~tyl-2,3,4,6-tetfa-

93.1 6.9 15.4 es of the ~~esponding aiditol at 175”.

tales,

1

NOTE

was a was eta

EXPERIMENTAL

~cal rotations

aterial was collecte

were recor

N

1

17

NOTE

a column

of

ave the aldobiouronic a

onolactone in ~.4~boric

1 M. DLJBOIS,X. A. GILLES. J. .K

350-356. C. WH~AND

EBERS.AND F. SMITH, Anal. Chem.,

J. R. ENGLAR, Can. J. Chem., 49 (1971)

BAYLEY AND E. J. BOURNE, J. Chro~zatogr., 4 (19~)

2

ENNEDY, Carbohydr,

Rex, 87 ( 1Y80) 165-173. 5 C. AGULLO AND E. SEOANE, Chem. Ind. (London), 6 (1981) 8-l 1. S. FEATHER, ~etbods Carbohydr. Ckem., 5 (1965) 144-145. 7 J. S. SAWARDE~R, J. H. SLON~KER.AND A. JEANES,A~ai. Chem., 37 (1965) 1~2-16~. UIR, Anal. Biocbem., 4 (1 LINDBERG,AND S. S~NSSON, Actu Chem. Stand., 21 (1967) 1 10 S. C. CHV~S handbook of Chro~tography, C.R.C. Press, Honda, 1982, pp. b-10. 11 BERG.AND S. S~NSSON, Car&ohydr. Res., 5 (1967) 433-440. 12 WILD, J. Am. Chem. Sot., 75 (1953) 2612-2616. 13 AND A. M. STEPHEN.method Carbo~ydr. Chem., 2 (1963) 68-77. 14 E. SJ~STRO~, S. JUSLIN,AND E. SEPPALA,Acta Chem. ~cand., 23 (1969) 361~3611.

2X (1956)