Fructose levulose

EMETROL is an oral solution containing balanced amounts of dextrose (glucose) and levulose (fructose) and phosphoric acid with controlled hydrogen ion concentration. Available in original lemon-mint or cherry flavor. Each 5-mI, teaspoonful contains dextrose (glucose), 1.87 g levulose... 

Figure 21.22 Concentrations of sugars (on a percent dry solids basis) needed to give the same sweetness as sucrose solutions (levulose = fructose).85...

Rate of Fermentation.—The ratio of carbon dioxide to alcohol produced and the ratio of yeast formed to alcohol produced both vary at different stages of the fermentation. They depend both on the age of the yeast and on the age of the fermentation. Slator, J.C.S. (1906), 89 128, and ibid. (1908), 93 217 has shown that the rate of conversion of dextrose into alcohol and carbon dioxide by yeast is exactly proportional to the amount of yeast present and, with the exception of very dilute solutions, is almost independent of the concentration of sugar. Slator and Sand, Trans. Ch. Soc. (1910) 97 922-927 have further developed and explained this fact by showing that the diffusion of sugar into the yeast cell is so rapid even in dilute solutions that more sugar is present in the cell than can be fermented at any instant. Various yeasts will ferment levulose (fructose) at the same rate as that at which dextrose is fermented. Similarly, maltase-containing-yeasts will ferment maltose solutions at the same rate as if dextrose were being fermented. 

Levulose—Fructose, or levulose as it is known commercially, is one of the two components of invert sugar. It is intensely sweet and highly soluble, and is produced in small quantities mainly for pharmaceutical applications. 

D Fructose (a 2 ketohexose also known as levulose it IS found in honey and IS signficantly sweeter than table sugar)... 

Lavulin, n. levulin. -saure, /. levulinic acid. Lavulkan, n. a kind of synthetic rubber. T. N. Lavulose,/. levulose, n-fructose. 

Links-drehimg, /. levorotation, left-handed polarization counterclockwise motion left turn, -fruchtzucker, m. levulose, n-fructose. linksgdngig, a. left-turning, counterclockwise. Links-gewinde, n. left-handed thread, -lauf, m. motion to the left, counterclockwise motion. 

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

Levulose Trinitrate. See under Fructose, Vol 6 of Encycl, F208-L... 

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). 

Glucose oxidase, which converts glucose to dextrose and levulose. Isomerase, which converts glucose to fructose. 

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

For levulose or fructose, the variations of specific rotation with temperature and concentration are considerable, but the data are somewhat discordant and uncertain, owing to the difficulty of obtaining this sugar pure and crystalline. The value — 930 given in the table, which is in satisfactory agreement with those adopted for glucose and invert sugar, is deduced for about 10% solutions from the formula ... 

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,... 

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