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Stevioside
Stevioside is a glycoside derived from the stevia plant, which can be used as a sweetener. Evidence of benefit is lacking for long-term effects on weight loss and heart disease risks. Origin Stevioside is the main sweetener (along with rebaudioside A) found in the leaves of ''Stevia rebaudiana'', a plant originating in South America. Dried leaves, as well as aqueous extracts, have been used for decades as a sweetener in many countries, notably in Latin America and Asia (Japan, China). Stevioside was discovered in 1931 by French chemists who gave it its name. The sweetening power of stevioside was estimated to be about 300 times stronger than cane sugar. See also * Steviol glycoside Steviol glycosides are the chemical compounds responsible for the sweet taste of the leaves of the South American plant '' Stevia rebaudiana'' (Asteraceae) and the main ingredients (or precursors) of many sweeteners marketed under the generic na ... References {{authority control Gluco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steviol Glycoside
Steviol glycosides are the chemical compounds responsible for the sweet taste of the leaves of the South American plant ''Stevia rebaudiana'' (Asteraceae) and the main ingredients (or precursors) of many sweeteners marketed under the generic name stevia and several trade names. They also occur in the related species '' S. phlebophylla'' (but in no other species of ''Stevia'') and in the plant '' Rubus chingii'' (Rosaceae). Steviol glycosides from ''Stevia rebaudiana'' have been reported to be between 30 and 320 times sweeter than sucrose, although there is some disagreement in the technical literature about these numbers. They are heat-stable, pH-stable, and do not ferment. Steviol glycosides do not induce a glycemic response when ingested, because humans cannot metabolize stevia. The acceptable daily intake (ADI) for steviol glycosides, expressed as steviol equivalents, has been established to be 4 mg/kg body weight/day, and is based on no observed effects of a 100 fol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stevia
Stevia () is a natural sweetener and sugar substitute derived from the leaves of the plant species ''Stevia rebaudiana'', native to Paraguay and Brazil. The active compounds are steviol glycosides (mainly stevioside and rebaudioside), which have about 50 to 300 times the sweetness of sugar, are heat-stable, pH-stable, and not fermentable. The human body does not metabolize the glycosides in stevia, so it contains zero calories as a non-nutritive sweetener. Stevia's taste has a slower onset and longer duration than that of sugar, and at high concentrations some of its extracts may have an aftertaste described as licorice-like or bitter. Stevia is used in sugar- and calorie-reduced food and beverage products as an alternative for variants with sugar. The legal status of stevia as a food additive or dietary supplement varies from country to country. In the United States, high-purity ''stevia glycoside'' extracts have been generally recognized as safe (GRAS) since 200 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rebaudioside A
Rebaudioside A (sometimes shortened to "Reb A") is a steviol glycoside from the leaves of ''Stevia rebaudiana'' that is 240 times sweeter than sugar. Rebaudioside A is the sweetest and most stable steviol glycoside, and is less bitter than stevioside. ''Stevia'' leaves contain 9.1% stevioside and 3.8% rebaudioside A. The glycoside contains only glucose (to the exclusion of other commonly found monosaccharides) as its monosaccharide moieties. It contains four glucose molecules in total with the central glucose of the triplet connected to the main steviol structure at its hydroxyl group, and the remaining glucose at its carboxyl group forming an ester In chemistry, an ester is a compound derived from an oxoacid (organic or inorganic) in which at least one hydroxyl group () is replaced by an alkoxy group (), as in the substitution reaction of a carboxylic acid and an alcohol. Glycerides ar ... bond. References Glucosides Vinylidene compounds {{Organic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glycoside
In chemistry, a glycoside is a molecule in which a sugar is bound to another functional group via a glycosidic bond. Glycosides play numerous important roles in living organisms. Many plants store chemicals in the form of inactive glycosides. These can be activated by enzyme hydrolysis, which causes the sugar part to be broken off, making the chemical available for use. Many such plant glycosides are used as medications. Several species of ''Heliconius'' butterfly are capable of incorporating these plant compounds as a form of chemical defense against predators. In animals and humans, poisons are often bound to sugar molecules as part of their elimination from the body. In formal terms, a glycoside is any molecule in which a sugar group is bonded through its anomeric carbon to another group via a glycosidic bond. Glycosides can be linked by an O- (an ''O-glycoside''), N- (a ''glycosylamine''), S-(a ''thioglycoside''), or C- (a '' C-glycoside'') glycosidic bond. According to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weight Loss
Weight loss, in the context of medicine, health, or physical fitness, refers to a reduction of the total body mass, by a mean loss of fluid, body fat (adipose tissue), or lean mass (namely bone mineral deposits, muscle, tendon, and other connective tissue). Weight loss can either occur unintentionally because of malnourishment or an underlying disease, or from a conscious effort to improve an actual or perceived overweight or obese state. "Unexplained" weight loss that is not caused by reduction in calorific intake or exercise is called cachexia and may be a symptom of a serious medical condition. Intentional Intentional weight loss is the loss of total body mass as a result of efforts to improve physical fitness, fitness and health, or to change Human physical appearance, appearance through slimming. Weight loss is the main Management of obesity, treatment for obesity, and there is substantial evidence this can prevent progression from prediabetes to Diabetes mellitus, ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stevia Rebaudiana
''Stevia rebaudiana'' is a plant species in the genus '' Stevia'' of the family Asteraceae. It is commonly known as candyleaf, sweetleaf or sugarleaf. It is a small seasonal plant which grows to a height of . It has elongated leaves that grow along the stems and are lined up against each other. The flowers are typically trimmed to improve the taste of the leaves. Stevia is a tender perennial native to parts of Brazil and Paraguay having humid, wet environments. Stevia is widely grown for its leaves, from which extracts can be manufactured as sweetener products known generically as stevia and sold under various trade names. The chemical compounds that produce its sweetness are various steviol glycosides (mainly stevioside and rebaudioside), which have 200–300 times the sweetness of sugar. Stevia leaves contain 9.1% stevioside and 3.8% rebaudioside A. Description The flowers are white with light purple accents and no fragrance. Plants produce fruit which is ribbed spindle-sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glucosides
A glucoside is a glycoside that is derived from glucose. Glucosides are common in plants, but rare in animals. Glucose is produced when a glucoside is hydrolysed by purely chemical means, or decomposed by fermentation or enzymes. The name was originally given to plant products of this nature, in which the other part of the molecule was, in the greater number of cases, an aromatic aldehydic or phenolic compound (exceptions are Jinigrin and Jalapin or Scammonin). It has now been extended to include synthetic ethers, such as those obtained by acting on alcoholic glucose solutions with hydrochloric acid, and also the polysaccharoses, e.g. cane sugar, which appear to be ethers also. Although glucose is the most common sugar present in glucosides, many are known which yield rhamnose or iso-dulcite; these may be termed pentosides. Much attention has been given to the non-sugar parts (aglyca) of the molecules; the constitutions of many have been determined, and the compounds synthes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stevia (genus)
''Stevia'' () is a genus of about 240 species of herbs and shrubs in the family Asteraceae, native to subtropical and tropical regions from western North America to South America. The species ''Stevia rebaudiana'' is widely grown for the sweet compounds (steviol glycosides) extracted from its leaves, sold as a sugar substitute under the generic name stevia and several trade names. Taxonomy The genus ''Stevia'' consists of 240 species of plants native to South America, Central America, and Mexico, with several species found as far north as Arizona, New Mexico, and Texas. Human use of the sweet species ''S. rebaudiana'' originated in South America. The genus was named for Spanish botanist and physician Petrus Jacobus Stevus ( Pedro Jaime Esteve 1500–1556), a professor of botany at the University of Valencia The University of Valencia ( ca-valencia, Universitat de València ; also known as UV) is a public research university located in the city of Valencia, Spain. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
