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Cell wall material (CWM) was prepared from olive seed hull, which is heavily lignified and very tough. The material was cryomilled and delignified with chlorite/acetic acid for 9 h to give the holocellulose. Polymers were solubilised from the holocellulose by sequential extraction with...
The mobility and conformation of amylose in a gel form and its α-amylase resistant residue were probed through NMR relaxation experiments and high resolution 13 C-CP/MAS NMR. The gel contained a double helical, rigid fraction and a more mobile amorphous fraction. Treatment of the gel with...
Previously we reported the possible occurrence of a complex containing glucuronoxylan and xyloglucan in the cell walls of olive pulp. In order to investigate the nature of this complex, the 1 M KOH (1 °C)-soluble polysaccharides in which it was prevalent, were separated by graded ethanol...
After extraction of smooth pea starch and waxy maize starch from pure amylose and amylopectin fractions, films with various amylose contents were prepared by casting in the presence of water or water with glycerol. For unplasticized films, a continuous increase in tensile strength (40–70 MPa)...
Several samples of polyglucuronan have been prepared by oxidation of cellulose with nitrogen oxides. Optimisation of the reaction conditions in terms of degree of oxidation and molecular weight of the products was carefully performed.
Conditions for the preparation of carboxymethyl derivatives of corn and amaranth starch were compared. The two starches differed considerably with respect to the optimum conditions such as temperature, pH, time, concentration of sodium monochloroacetate, and starch:liquor ratio. In both cases,...
Schizophyllan, an extracellular polysaccharide secreted by the fungus Schizophyllum commune ATCC 38548, shows interesting technical and pharmaceutical applications. Especially in the degraded form, this homoglucan is applicable as an antitumor, antihepatitis, anti-HIV and antiviral agent. Due to...
The O -specific polysaccharide of the phenol soluble lipopolysaccharide (LPS) (LPS-P) of the Rhizobium loti NZP2213 strain consists of a homopolymeric chain of α-1, 3-linked units of 2- O -acetyl-6-deoxy- l -talopyranose, very probably terminated by a single unit of 2- O -acetyl-6-deoxy- l...
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