Fruit Sugar Fructose

Until now, other L-sugars have been available only in small amounts. It is assumed that they are metabolized not at all or only to a small extent by human beings and even in low concentrations, they are capable of inhibiting the glycosidases of the small intestine. Therefore, economic methods of synthesis are of interest. A suitable educt is L-arabinose, which yields a L-glucose/L-mannose mixture by chain extension. This mixture can be oxidized directly to L-fructose or after reduction via L-sorbitol/L-mannitol. The isomerization of L-sorbose to L-idose and L-gulose is also under discussion. 

Sugar alcohols serve as sweetening agents for diabetics and are used as sugar substitutes in sugar-free candies and confectionery. Candies, bread and cakes contain these alcohols as moisturizers and softeners. Table 19.8 shows data on their use. Sugar alcohols have a low physiological calorific value. 

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The empirical formula of a compound is the formula that gives the lowest whole-number ratio of atoms of all the elements. For example, the empirical formula of fruit sugar, fructose, C6H12O6, is CH2O. The simplest ratio of carbon... 

Calculate the mass of a sample of fruit sugar, fructose, CgHi20g, containing 2.65 X 10 ° molecules. 

Fruit sugar (fructose — can purchase at healthfood store)... 

Therapeutic Function Fluid and nutrient replenisher Chemical Name Fructose Common Name Levulose and fruit sugar Structural Formula h... 

Fructose (also known as fruit sugar) Sweet fruits and fruitjuices... 

D-Fructose [57-48-7] (levulose, fruit sugar) is a monosaccharide constituting one-half of the sucrose molecule. It was first isolated from hydrolyzed cane sugar (invert sugar) in the late nineteenth century (1,2). Fmctose constitutes 4—8 wt % (dry sugar basis (dsb)) of many fruits, where it primarily occurs with glucose (dextrose) and sucrose (see Carbohydrates Sweeteners). It also makes up 50 wt % (dsb) of honey (3,4). 

Fructose, levulose ( fruit sugar ), melting point 95°C. Specific rotatory power -88.5°. 

Fruit Glucose Fructose Total Reducing Sucrose Total Sugars... 

D-Fructose (I), also known as levulose and fruit sugar, occurs abundantly and widely in nature. In the free state it is found in fruits,... 

Calculate the boiling-point elevation for a 0.650 m solution of fructose, fruit sugar, C6H12O6, in water. Fructose is nonvolatile and nonionic. 

Fructose, fruit sugar, CgHi20g, is nonvolatile and nonionic. For a 2.46 m solution of fructose in water, calculate ... 

Many other simple carbohydrates occur in nature. These include fructose (fruit sugar), maltose (malt sugar), and lactose (milk sugar). 

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