fructose

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Related to Fructose metabolism: Fructose intolerance

fructose

 [fruk´tōs]
a monosaccharide found in honey and many sweet fruits; it is used in solution as a fluid and nutrient replenisher. Called also levulose and fruit sugar.

fruc·tose (Fru),

(fruk'tōs),
A sugar that occurs naturally in fruits and honey. The dmonosaccharide is a 2-ketohexose that is the most important of the ketohexoses physiologically and one of the two products of sucrose hydrolysis; it is metabolized or converted to glycogen in the absence of insulin. Also referred to as fruit sugar, levoglucose, levulose, and d-arabino-2-hexulose.
[L. fructus, fruit, + -ose]

fructose

/fruc·tose/ (frook´tōs) a sugar, C6H12O6, found in honey and many sweet fruits; used as a fluid and nutrient replenisher.

fructose

(frŭk′tōs′, fro͝ok′-)
n.
A very sweet monosaccharide sugar, C6H12O6, occurring in many fruits and in honey, and used as a preservative for foodstuffs and as an intravenous nutrient. Also called fruit sugar, levulose.

fructose

[fruk′tōs, froo͡k′-]
a yellowish-to-white, crystalline, water-soluble levorotatory ketose monosaccharide that is sweeter than sucrose. It is found in honey and several fruits and combines with glucose to form the disaccharide sucrose. Also called fruit sugar, levulose. See also high-fructose corn syrup.

fructose

A molecule that is half sucrose and half glucose, which has been promoted as a sugar substitute.
 
Pros
It is 70% sweeter per calorie than other sugars and does not promote caries (tooth decay).
 
Cons
It is more expensive, loses sweetness with heating and may increase serum lipids in some individuals.

fruc·tose

(fruk'tōs)
A ketohexase; the d-isomer (also called fruit sugar, levulose, and d-arabino-2-hexulose) found in fruits and honey; a product of sucrose hydrolysis. It can be metabolized or converted to glucose.
[L. fructus, fruit, + -ose]

fructose

One of the simplest forms of sugar (a monosaccharide) and derived from fruit, sugar cane, honey and sugar beet. Fructose, linked to another monosaccharide, glucose, form the disaccharide sucrose which is the common domestic sugar. Fructose is sweeter than glucose, but has the same energy value. It is readily absorbed. Fructose provides direct energy for spermatozoa and is found in seminal fluid.

fructose

a carbohydrate that is considered to be an atypical KETOSE sugar because it acts as a reducing sugar in FEHLING'S TEST. See MONOSACCHARIDE and Fig. 224 .

Fructose

A type of natural sugar found in many fruits, vegetables, and in honey.
Mentioned in: Hypoglycemia

fructose

(also called laevulose or fruit sugar) is a six-carbon hexose. Fructose is the sweetest of simple sugars, present in fruits and honey. Some fructose is absorbed directly into the blood from the small intestine and the liver converts it to glucose; for this reason it is now being added to some energy drinks to provide a greater rate of carbohydrate uptake than can be achieved with glucose.

fruc·tose

(Fru) (fruk'tōs)
A sugar that occurs naturally in fruits and honey; also called fruit sugar.
[L. fructus, fruit, + -ose]

fructose

(fruk´tōs),
n a yellowish-to-white, crystalline water-soluble levorotatory ketose monosaccharide that is sweeter than sucrose and is found in honey, several fruits, and combined in many disaccharides and polysaccharides. Also called
fruit sugar and
levulose.
fructose intolerance,
n an inherited disorder marked by an absence of enzymes needed to metabolize fructose. Symptoms include sweating, tremors, confusion, and digestive distress with vomiting, and failure of infants to grow.

fructose

a hexose sugar found in honey and many sweet fruits; called also levulose and fruit sugar. It is used in solution as a fluid and nutrient replenisher.

fructose 1,6-bisphosphatase
key regulatory enzyme of gluconeogenesis.
fructose 1,6-bisphosphate aldolase
cleavage enzyme taking hexose-phosphates to triose-phosphates.
fructose 1,6-diphosphatase
a pacemaker or rate-limiting enzyme in the liver; participates in the control of the rate of hepatic metabolism.
fructose 2,6-bisphosphatase
part of multifunctional enzyme that regulates the concentration of the key positive allosteric effector of glycolysis, fructose 2,6-bisphosphate.
fructose 1-phosphate aldolase
cleaves fructose 1-phosphate to dihydroxyacetone phosphate; sometimes called aldolase B.
fructose 6-phosphate
key intermediate of glycolysis.
fructose tolerance test
a little used test of liver function.

Patient discussion about fructose

Q. what is more healthy, brown sugar or fruit sugar?

A. fruit sugar

Q. What difference does fructose makes to a diabetic with respect to glucose? I am diabetic with type 2 NIDDM. My colleague with the same NIDDM type2 has a better glycemic control than me. He follows strict diet. He prefers fructose sugar and avoids other sugar as much as possible. He suggested me the same. What difference does fructose makes to a diabetic with respect to glucose?

A. All carbohydrates—like starch and sugars like dextrose, maltose and glucose must be controlled for high consumption by a diabetic. Whereas fructose sugar had a slight different metabolic route inside the body and it does not requires insulin. Glucose requires insulin. As a diabetic lacks insulin production; the glucose increases the sugar level of the body but fructose is out of this system of functioning by our body and makes a diabetic to control it well. The energy level of glucose and fructose are almost similar.

More discussions about fructose
References in periodicals archive ?
If our hypothesis is correct, and a certain metabolic pathway interacts with copper deficiency, then any nutrient that mimics fructose metabolism should produce the same damage.
In particular, the identification of contrasting roles for two enzymes that are involved in fructose metabolism was surprising and could be important in understanding why some individuals may be more sensitive to the metabolic effects of fructose than others.
Additionally, fructose metabolism tends to create inflammatory byproducts which accelerate the inflammation process.

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