Hemicelluloses 3-glucans

Comparison of Cellulose/Hemicellulose, Glucan/Xylan, and Xylan Degradation/Glucan Degradation Ratios for Preliminary Tests (4) at 0.77 g of HzO/g of Dry Stems ... 

Xyloglucans are classified as gum when they are extractable with hot water from seed endosperm cell walls, such as the tamarind seed xyloglucan, and as hemicelluloses because they are alkali-extractable from the cell walls of vegetative plant tissues where they are closely associated with cellulose [2]. Also /3-glucans with mixed linkages appear under the name gum as well as hemicellulose in the literature. 

Figure 3 shows the structure of the hemicellulosic polysaccharides obtained from the bran cell wall preparations. These structures were deduced from the results of the methylation analysis of purified fractions (13). In contrast to the endosperm cell wall, no / -l,3-,l,4-glucan was obtained from... 

Enzymes should be added to the feed together with the pre-mix. Granulated enzyme products may readily be mixed with feed components, as they are based on normal feed components such as wheat or soy grits. A wide range of enzyme products are available. Enzyme products should contain specific enzyme activities necessary to degrade specific substances such as glucans, starch, protein, pectin-like polysaccharides, phytic acid, raffinose, stachyose, hemicellulose, and cellulose. 

C/H, cellulose/hemicellulose composition ratio G/X, glucan/xylan composition ratio AX/AG, xylan/glucan degradation ratio (this ratio was calculated assuming little change in the sum of ash, lignin, and extractives). 

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