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Date: 7-12-2021
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Dietary Carbohydrate Digestion
The principal sites of dietary carbohydrate digestion are the mouth and intestinal lumen. This digestion is rapid and is catalyzed by enzymes known as glycoside hydrolases (glycosidases) that hydrolyze glycosidic bonds (Fig. 1).
Because little monosaccharide is present in diets of mixed animal and plant origin, the enzymes are primarily endoglycosidases that hydrolyze polysaccharides and oligosaccharides and disaccharidases that hydrolyze tri- and disaccharides into their reducing sugar components. Glycosidases are usually specific for the structure and configuration of the glycosyl residue to be removed as well as for the type of bond to be broken. The final products of carbohydrate digestion are the monosaccharides glucose, galactose, and fructose that are absorbed by cells (enterocytes) of the small intestine.
Figure 1: Hydrolysis of a glycosidic bond.
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في اليوم العالمي للصحة النفسية.. نصائح لتحسين مزاجك اليومي
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آلاف الأشخاص يحاولون الهروب من فلوريدا بسبب إعصار ميلتون
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شعبة التوجيه الديني النسوي تواصل تقديم الدورة التطويرية لتعليم مناسك الحج
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