Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Mannans VOLUME

The second class comprises conventional solids, defined by a chemical formula, but whose property requirements are very minimal. In this class we included lignin, cellulose, mannan, galactan, xylan, arabinan and the biomass. The properties specified in the database include molecular weight, heat of formation, solid molar volume, and solid heat capacity. [Pg.450]

In Volume 33 of this Series, we presented1 a review of the crystalline structures of polysaccharides published during the period 1967-1974. Detailed accounts of progress in structural studies on specific types of polysaccharides were presented in the Proceedings of the Twenty-sixth Symposium of the Colston Research Society and were subsequently published as a book.2 Precise methods for X-ray diffraction analysis of biopolymer structures were discussed by Hukins.3 The aspects of the structures of cellulose, mannan, and xylan, their organization in the cell wall, and the biosynthesis of cell-wall polysaccharides were described by Mackie.4 Work on the structures of the connective-tissue polysaccharides, O-acetylcellulose, and the various forms of amylose was reviewed by Atkins,5 Chanzy,6 and Sarko,7... [Pg.377]

Another biochemical topic, the biochemistry of plant galacto-mannans, is discussed by Dey (Egham, Surrey) the article rounds out aspects of the field that are complementary to those treated by Gorin and Spencer in Volume 23 (on fungal polysaccharides) and Dea and Morrison in Volume 31 (on the chemistry and interactions of seed galactomannans). [Pg.448]

The aqueous extract of whole, brewers yeast cells contained a mannan, termed cerebrosan, which was monodisperse on ultra-centrifugation. It had a specific rotation of -1-84° and contained 1.2% of nitrogen. The molecular weight was 3.4 X 10 , calculated from a value of S209.75 X 10 and the known relative specific volume. [Pg.389]

The general molecular structure of yeast exocellular mannoproteins is similar to that of mannoproteins in the cell wall (Volume 1, Section 1.2) (Villetaz et al., 1980 Llauberes et al., 1987 Llauberes, 1988). It consists of a peptide chain connected to short side chains made up of four maunose units and a high molecular weight, branched a-D-mannane (Figure 3.24). [Pg.85]

Figure 7. Acetolysis fingerprints of Subfractions A (A), B (B), C (C), D (D), and E (E) (5), Each acetolysate, obtained from 100 mg of the mannan subfractionsy was applied onto a column (2 X 100 cm) of Bio-Gel P-2 and eluted with water (7 mL/hr). Samples (20 ixL) of eluates corresponding to Fractions 7, 11 y Illy and IV were assayed for the amounts of carbohydratey and 50 /xL of Fraction Vo was used for the determination of carbohydrate and phosphorus in the void volume regions (%) carbohydrate at 490 nm (X) phosphorus at 820 nm O.D., optical density. Figure 7. Acetolysis fingerprints of Subfractions A (A), B (B), C (C), D (D), and E (E) (5), Each acetolysate, obtained from 100 mg of the mannan subfractionsy was applied onto a column (2 X 100 cm) of Bio-Gel P-2 and eluted with water (7 mL/hr). Samples (20 ixL) of eluates corresponding to Fractions 7, 11 y Illy and IV were assayed for the amounts of carbohydratey and 50 /xL of Fraction Vo was used for the determination of carbohydrate and phosphorus in the void volume regions (%) carbohydrate at 490 nm (X) phosphorus at 820 nm O.D., optical density.
Mannan, S. 2012. Lee s Loss Prevention in the Process Industries Hazard Identification, Assessment and Control, 4th edn. 3 Volumes. Boston, MA Butterworth-Heinemann. Ministry of Defense, United Kingdom. 2012. Applied R M Manual for Defence Systems. GR-77. U.K. Ministry of Defence. [Pg.265]

Fig. 31 Probability of particles bridging gap as a function of filler volume fraction. Courtesy of S.H. Mannan, Loughborough University... Fig. 31 Probability of particles bridging gap as a function of filler volume fraction. Courtesy of S.H. Mannan, Loughborough University...

See other pages where Mannans VOLUME is mentioned: [Pg.163]    [Pg.197]    [Pg.305]    [Pg.104]    [Pg.150]    [Pg.291]    [Pg.292]    [Pg.458]    [Pg.1147]    [Pg.96]    [Pg.86]    [Pg.254]    [Pg.28]    [Pg.255]   
See also in sourсe #XX -- [ Pg.3 , Pg.423 ]




SEARCH



Mannane

© 2024 chempedia.info