Sucrose honey

In the body, this reaction is reversed by the enzyme sucrase. This occurs in digestion, which makes glucose and fructose available for absorption into the blood. Honey bees also carry an enzyme that can hydrolyze sucrose. Honey consists mostly of a 1 1 mol mixture of glucose and fructose with a small amount of unreacted sucrose. 

Glucose, fructose, and sucrose Honey HPAEC Amperometric (Ni-Cr alloy) [83]... 

D-fructose, C HijOo. Crystallizes in large needles m.p. 102-104 C. The most eommon ketose sugar. Combined with glucose it occurs as sucrose and rafftnose mixed with glucose it is present in fruit juices, honey and other products inulin and levan are built of fructose residues only. In natural products it is always in the furanose form, but it crystallizes in the pyranose form. It is very soluble in... 

Among sucrose glucose and fructose fructose is the sweetest Honey is sweeter than table sugar because It contains fructose formed by the isomerization of glucose as shown in the equation... 

D-Fmctose [57-48-7] (levulose, fmit sugar) is a monosaccharide constituting one-half of the sucrose molecule. It was first isolated from hydroly2ed cane sugar (iavert sugar) ia the late nineteenth century (1,2). Fmctose constitutes 4—8 wt % (dry sugar basis (dsb)) of many fmits, where it primarily occurs with glucose (dextrose) and sucrose (see Carbohydrates Sweeteners). It also makes up 50 wt % (dsb) of honey (3,4). 

Dextrose (D-glucose) is by far the most abundant sugar in nature. It occurs either in the monosaccharide form (free state) or in a polymeric form of anhydrodextrose units. As a monosaccharide, dextrose is present in substantial quantities in honey, fmits, and berries. As a polymer, dextrose occurs in starch, cellulose (qv), and glycogen. Sucrose is a disaccharide of dextrose and fmctose. 

In nature, fmctose (levulose, fmit sugar) is the main sugar in many fmits and vegetables. Honey contains ca 50 wt % fmctose on a dry basis. Sucrose is composed of one unit each of fmctose and dextrose combined to form the disaccharide. Fmctose exists in polymeric form as inulin in plants such as Jemsalem artichokes, chicory, dahlias, and dandeHons, and is Hberated by treatment with acid or enzyme. 

Sucrose, the compound we call sugar, is the most common disaccharide. One of the monomer units in sucrose is a-glucose. The other is fructose, a monosaccharide found in honey and natural fruit juices. 

Honey is primarily fructose and glucose (in that order), with a little sucrose (about 1 percent), less than 10 percent other sugars, and about 17 percent water. 

Stoner, A. and W.T. Wilson. 1982. Diflubenzuron (dimilin) effect of long-term feeding of low doses in sugar-cake or sucrose syrup on honey bees in standard-size field colonies. Amer. Bee Jour. 122 579-582. 

Fed sucrose syrup for 7-8.5 weeks At 100 mg/kg, survival was lower and honey production 5... 

Fructose is found in honey and fruit and as part of the disaccharide sucrose (common table sugar). Sucrose is hydrolyzed by intestinal brush border sucrase, and the resulting monosaccharides, glucose and fructose, are absorbed into the portal blood. The liver phosphorylates frurtose and cleaves it into glyceraldehyde and DHAP. Smaller amounts are metabolized in renal proximal tubules. The pathway is shown in Figure 1-12-7 important enzymes to remember are ... 

Fructose a monosaccharide (hexose) found in high concentrations in honey a constituent of sucrose, common table sugar. 

The high sweetness of fructose combined with that of glucose means invert sugar is sweeter than sucrose, so it provides a cheaper, less calorific sweetener than sucrose. The relative sweetness figures for sucrose, glucose and fructose are 1.0, 0.7 and 1.7 respectively. Honey is also composed mainly of invert sugar. 

Within 2-3 weeks after treatment oxytetracycline residues fell to levels approaching those found in the non-medicated colony. The residues found in surplus honey are relatively much lower when compared to levels in brood nest honey, and also decreased to background levels. Figure 5 compares results obtained for medicated sugar syrup sprays (18). Data for 3 colonies have been averaged for presentation. Medicated sprays sugar syrup contained 3.8g of animal soluble powder (200 mg oxytetracycline) in 1.5 liters of 50% (w/v) sucrose syrup. The combs of each of 3 colonies were sprayed with... 

Gilliam, M., Taber, S., III, and Argauer, R. J. 1978. Degradation of oxytetracycline in medicated sucrose and honey stored by caged honey bees. Apis mellifera. J. Invert. Path. 

Phosphoric acid esters of the ketopentose D-ribulose (2) are intermediates in the pentose phosphate pathway (see p.l52) and in photosynthesis (see p.l28). The most widely distributed of the ketohexoses is D-fructose. In free form, it is present in fruit juices and in honey. Bound fructose is found in sucrose (B) and plant polysaccharides (e.g., inulin). 

Carbohydrates serve as a general and easily available energy source. In the diet, they are present as monosaccharides in honey and fruit, or as disaccharides in milk and in all foods sweetened with sugar (sucrose). Meta-bolically usable polysaccharides are found in vegetable products (starch) and animal products (glycogen). Carbohydrates represent a substantial proportion of the body s energy supply, but they are not essential. 

C. Fructose, present in honey and in table sugar (sucrose) as a disaccharide with... 

Hereditary fructose intolerance is due to aldolase B deficiency and is often diagnosed when babies are switched from formula or mother s milk to a diet containing fructose-based sweetening, such as sucrose or honey. 

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