Hulls crude fiber

Possible Roles of insoluble Carbohydrates in Texture Development. Based on data obtained frcm soy isolate-soy hull blend texturization experiments, insoluble carbohydrates and crude fiber play an important role in modulating the morphology of final texturized products (Figures 11-14). Insoluble carbohydrates, because of their plastic response to deformation, control the type of alveolation developed during processing. 

Compositions of the four oilseeds are given in Table 2. All except soybeans have a high content of seed coat or hull. Because of the high hull content, the crude fiber content of the other oilseeds is also high. Confectionery varieties of sunflower seed may contain up to 28% cmde fiber on a dry basis (8). Soybeans differ from the other oilseeds in their high protein and low oil content. All these oilseeds, however, yield high protein meals when dehulled and defatted. 

Fat. Fats tend to depress the cellulolytic activity of rumen microorganisms. For example 3% of com oil was sufficient to depress the digestibility of crude fiber in rations high in com cobs and cottonseed hulls, and 10% com oil produced a pronounced depression (42). Addition of alfalfa ash offset this effect when com oil did not exceed 5%... 

The carbohydrate concentration in whole SB is lower than in SBM, due to the concentrating effect of lipid extraction on the latter. Whole SB contain approximately 27% nitrogen free extract (NFE) and 6% crude fiber (CF) on a dry matter basis (DMB), whereas SBM with or without hulls contains 36% NFE and 8% CF or 34% NFE and 4% CF, respectively (Potter Potchanakorn, 1984). Although NFE (plus CF) is not commonly used today because of the limited information it provides on carbohydrates from a nutritional standpoint, it provides a reasonable indication of the gross carbohydrate content of a feed- or foodstuff. The NFE contains the nonstructural carbohydrates and part of the structural carbohydrates, and CF contains part of the structural carbohydrates. 

NUTRITIONAL VALUE OF COTTONSEED. Typically, cottonseed is comprised of about 10% linters, 35% hull, and 55% kernels (meats). The kernels, from which food and feed are obtained, contain about 7% moisture, 30% oil, 30% crude protein, 24% nitrogen-free extract, 4.8% crude fiber, and 4.4% tish. 

Composition of the huiis—The fibrous hulls have only a small percentage of oil and crude protein and contain about 50% crude fiber. Chemically, the hulls are largely lignin, pentosans, and cellulosic constituents. 

The com is not milled. It is first steeped in a solution of water and sulfur dioxide for 24 8 h. This looseus the germ and hull fibers. The germ is then removed from the kernel, and com oil is extracted from the ranoved germ. The crude com oil can then be processed in an edible oil plant. 

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