scholarly journals The partial acid hydrolysis of a highly dextrorotatory fragment of the cell wall of Aspergillus niger. Isolation of the α-(1→3)-linked dextrin series

1965 ◽  
Vol 96 (3) ◽  
pp. 659-664 ◽  
Author(s):  
IR Johnston
Keyword(s):  
Cell Wall ◽  
Aspergillus Niger ◽  
Acid Hydrolysis ◽  
Partial Acid Hydrolysis ◽  
Hydrolysis Of

Structure and composition of the alkali-insoluble cell wall fraction of Coprinus macrorhizus var. microsporus

1980 ◽  
Vol 58 (2) ◽  
pp. 147-153 ◽  
Author(s):  
Carey B. Bottom ◽  
Donald J. Siehr
Keyword(s):  
Amino Acids ◽  
Cell Wall ◽  
Acid Hydrolysis ◽  
Cell Walls ◽  
Cell Wall Fraction ◽  
Enzymic Hydrolysis ◽  
Methylation Analysis ◽  
Partial Acid Hydrolysis ◽  
The Core ◽  
Hydrolysis Of

The alkali-insoluble (R-) fraction from the cell walls of Coprinus macrorhizus var. microsporus is a highly branched glucan, containing α-(1 → 4), β-(1 → 3), and β-(1 → 6) linkages as shown by methylation, partial acid hydrolysis, and enzymic hydrolysis. The α-(1 → 4)-linked segments are joined by occasional β-(1 → 3) links as suggested by the identification of 2-O-α-glucopyranosyl erythritol in the hydrolysate of the reduced, periodate-oxidized glucan. Hydrolysis of the permethylated glucan gave nearly equimolar amounts of 2,4-di- and 2,3-di-O-methyl-D-glucose. Methylation analysis of the residue from enzymic hydrolysis, the "CORE-fraction," indicated the presence of glucose residues in this fraction linked through positions O1, O3, O4, and O6. Hydrolysates of the R-fraction contained mannose, glucosamine, and amino acids in addition to glucose.

Hydrolysis of yeast cell-wall glucan by extracellular (1→3)-β-glucanases from Aspergillus niger

1991 ◽  
Vol 13 (1) ◽  
pp. 87-90 ◽  
Author(s):  
V. Kéry ◽  
G. Kogan ◽  
K. Zajacová ◽  
K. Slámová ◽  
L. Masler ◽  
...  
Keyword(s):  
Cell Wall ◽  
Aspergillus Niger ◽  
Yeast Cell ◽  
Yeast Cell Wall ◽  
Hydrolysis Of

Phosphopeptides Obtained by Partial Acid Hydrolysis of α-Casein2

1957 ◽  
Vol 79 (10) ◽  
pp. 2559-2565 ◽  
Author(s):  
N. J. Hipp ◽  
M. L. Groves ◽  
T. L. McMeekin
Keyword(s):  
Acid Hydrolysis ◽  
Partial Acid Hydrolysis ◽  
Hydrolysis Of

scholarly journals A study of the acidic peptides formed on the partial acid hydrolysis of wool

1949 ◽  
Vol 44 (5) ◽  
pp. 548-560 ◽  
Author(s):  
R. Consden ◽  
A. H. Gordon ◽  
A. J. P. Martin
Keyword(s):  
Acid Hydrolysis ◽  
Partial Acid Hydrolysis ◽  
Acidic Peptides ◽  
Hydrolysis Of

Effect of Dilute-Acid-Hydrolysis Treatments on the Utilization of Wheat Straw by Rumen Bacteria and Free Enzymes

1992 ◽  
Vol 1992 ◽  
pp. 212-212
Author(s):  
F.B. de Castro ◽  
P.M. Hotten ◽  
E.R. Ørskov
Keyword(s):  
Cell Wall ◽  
Acid Hydrolysis ◽  
Wheat Straw ◽  
Effect Of Temperature ◽  
Rumen Bacteria ◽  
Dilute Acid ◽  
Cell Wall Polysaccharides ◽  
Dilute Acid Hydrolysis ◽  
Physical Treatment ◽  
Hydrolysis Of

Extensive hydrolysis of cell wall polysaccharides by rumen bacteria or free enzymes has been reported when lignocellulosic materials had been treated with steam and pressure (Dekker & Wallis, 1983; Castro & Machado, 1989). This has mainly been explained by complete hydrolysis of hemicellulose, lignin depolymerization and redistribution within the cell wall and increasing accessible pore volume by swelling of the cell walls. Physical treatment based on use of steam and pressure alone (auto-hydrolysis) is always associated with the release of toxic levels of furfural and phenolic monomers. These chemicals are able to inhibit the activity of rumen microorganisms, yeasts and free enzymes. To overcome this effect, dilute-acid-hydrolysis at low temperatures and pressures has been proposed (Grohmann et al., 1985). The aim of this study was to evaluate the effect of temperature, sulphuric acid concentration and reaction time on the utilization of treated wheat straw by dilute-acid-hydrolysis, either by rumen bacteria and free enzymes.

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