الفهرس 
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Abstract
A Folysaccharide wa.s obtained in 4 - 45 % yield
from the ground seeds of Lupinus termis (Variety
Giza 2). Its specific optical rota.tional in alka~i
.(Ca. + 75) while in cuprammoniumcomplex (Ca. -468.75)
Qualitative and quantitative analysis of the polysaccharide
hydrolysate Jields four simple sugars :
D-galactose. L-arabinose, D-xylose. and L-rhamnose
with molecula.’ ra·,.io~ 5 :) : 1 : 1 respectively.
The absorption spectrum of the polysaccharide
showedthat the linkage between the units were of
the B type.
The polysaccharide was completely methylated
using dimethylsulfoxide as a solvent, dimethyl
sulphate and sodium hydroxide. Separation and
examination of the fission products of the methylated
polysaccharide using thin lJqer chromatograPhic technique
and microanalytical, physical measurements
showed the presence of 2,3, 6 tri~ethyl-~alactapyranose
(0.26 mole), 2,4 di-D=methyl-D-galactopyranose
(0.06 mole), 2, J di.-Q-methyl-I-arabinofouranose
’0.21 mole)J 2,3 d1~tlJl’l-D-xylopyranose’ (0.07
mole), 2,J,4·tr1-o-metbr~rhemnOPyraD08e (0.06 mo~e).
The main chain of the polysaccharide is found
of galactopyranose units linked through
linkages and the average ohain length is 26 units
of Anhydro-galactopyranose units. A branch occurs at
every 5 un1ts. The xylose .and Arabinose un1ts form
the branches which are term:i.mtted by rhamnose units.