Fungi glucan

Keywords Chitosan Fungi Glucan Production Properties... 

It may be that this fact was associated with the rather complex composition of fungal mycelium, consisting of chitin enclosed in a glucan matrix (Bowman, Free, 2006). Therefore, mature saprophyte mycelium are completely covered by difficult-soluble glucans and the fraction of chitin in the apical cell wall is not sufficient. As such, we supposed that these cationic isoforms bound with another major component of the fungi... 

D-Glucans containing /3-D-(l—>3) and /3-d-(1— 6) units, often with a /3-D-(l— 3)-linked main-chain, are common components of fungi. Saito and coworkers58 showed that the 13C-n.m.r. spectra of solutions of D-... 

Cellulase-Negative Xylanase-Positive Mutants. There are two reports concerning the selection of such mutants from filamentous fungi, one on Pofyporus adm-tus (32) and the other cmi Trichoderma reesei (Durand, H. et al. Society CAYLA, Toulouse, France, unpublished results). An analysis of the eliminated cellulase genes has not been done, so it is not known if the mutants negative in endo(l- 4)-p-glucan-ase were deficient also in cellobiohydrolases. 

The cell wall of fungi is a complex, multilayered structure formed by at least two major polysaccharides. These major polysaccharides have been used as a taxonomic criterion for fungi, as some of them contain chitin-glucans, and others, glucomannans.123... 

Baked products, p-glucan content, 749 Basidiomycete fungi, 394 BCA. see Bicinchoninic acid... 

Many other fungi contain alkali-soluble, (1— 3)-linked a-D-gluco-pyranans these are summarized in Table I. In Histoplasma capsula-tum, the cell wall contains a glucan, whereas the mycelial form con-... 

Fungi present a much more complex target than bacteria, eg yeasts, which constitute a large group of rather disparate eukaryotic organisms, are enveloped by a mixture of glucan, mannan, chitin, and lipoproteins, and separated from the plasma membrane by a periplasmic space. 

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