fructose


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

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 ?
The reason why we think that fructose is a good candidate for playing a role in the diabetes epidemic is because, when you give an animal water drinking combined with fructose, they will rapidly start increasing their energy intake," he said.
The fewer calories in fructose corn syrup or its being less fattening than sugar is offset by its carcinogenic and other harmful properties, medical experts claim.
And they begin using fructose until oxygen is available again.
Ginger extract diminishes chronic fructose consumption-induced kidney injury through suppression of renal overexpression of proinflammatory cytokines in rats.
Some studies have demonstrated that energy supplements containing fructose and sucrose resulted in lower glycemic response when compared to those containing either glucose or its polymers (5,24,30).
The totality of the evidence is compelling to suggest that added sugar, and especially added fructose (usually in the form of high-fructose com syrup and table sugar), are a serious and growing public health problem, according to the authors.
in essence, fructose is overstimulating the hormone, which because it is overstimulated is the cause of the weight gain, or b.
the FMD measurements before and after consumption of either sucralose or fructose, were carried out using a 2- way analyses of variance (ANOVA) with repeated measures.
Beverages and juices made with high fructose corn syrup (HFCS) contain 50 per cent more fructose than glucose - a blend that calls into question claims that sugar and HFCS are essentially the same, Khaleej Times reported.
Washington, June 5 ( ANI ): A new study has revealed soda consumers may be getting a much higher dose of the harmful sugar fructose than they have been led to believe.
Mice lacking the ability to metabolize fructose don't gain nearly as much weight as normal mice do, researchers report September 10 in Nature Communications.