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Gymnema

Some compounds such as gymnemic acid from Gymnema sylvestre (Asclepiadaceae) (which depresses the preceived sweetness of sugars) are known to distort the taste of others ( ) and may play a role in "disguising" the presence of kairomones or nutritional substances. [Pg.305]

Nakamura, Y., Tsumura, Y., Tonogai, Y., and Shibata, T. 1999. Fecal steroid excretion is increased in rats by oral administration of gymnemic acids contained in Gymnema syhestre leaves. J. Nutr. [Pg.201]

H. M. Lui, F. Kiuchi, and Y. Tsuda, Isolation and structure elucidation of gymnemic acids, antisweet principles of Gymnema sylvestre, Chem. Pharm. Bull. (Tokio), 40 (1992) 1366-1375. [Pg.301]

Preuss HG, Jarrell ST, Scheckenbach R, et al. 1998. Comparative effects of chromium, vanadium and gymnema sylvestre on sugar-induced blood pressure elevations in SHR. J Am Coll Nutr 17(2) 116-123. [Pg.454]

The leaves of the tropical plant Gymnema sylvestre, when chewed, suppress the ability to taste sweetness. The effect lasts for hours, and sugar seems like sand in the mouth. The ability to taste other sweeteners such as saccharin is equally suppressed. There is also a decrease in the ability to taste bitterness. The active principle of leaves has been named gymnemic acid and has been found (Stocklin et al. 1967) to consist of four components, designated as gymnemic acids, Ab A2, A3, and A4. These are D-glucuronides of acety-... [Pg.190]

Gymnemasaponins III-V Gymnema sylvestre (Asclepiadaceae) [leaf] Sweet-taste blockers... [Pg.401]

Gymnemic saponins Gymnema sylvestre (Asclepiadaceae) inhibited) [0.2], Insulin-stimulated Glucose TR (rat adipocyte) [0.2] [independent of AC activation (q.v.)] Glc-TR [hypoglycaemic]... [Pg.571]

Gymnemic acid Gymnema sylvestre (Asclepiadaceae) 4- Glc absorption (4 Glc-... [Pg.653]

Human taste response is modified by several plant-derived substances. The detergent sodium dodecyl sulfate, as well as triterpene saponins from the leaves of several plant species (most notably Gymnema sylvestre and Ziziphus jujuba) will temporarily inhibit the sweet taste sensation in man the duration of the effect being about one hour for G. sylvestre and about fifteen minutes for Z. jujuba. The mechanism of action seems to be related, in part, to the surfactant properties of the materials. Structures of the modifiers and possible mechanisms of action are discussed. [Pg.11]

A substance isolated from the Indian shrub Gymnema sylvestre, has a profound ability to reduce perceived sweetness of sugar solutions. The effect was noticed over a century ago when two British inhabitants of an Indian village found that, after chewing the leaves of G sylvestre, the sweetness of their tea disappeared (7). The sweetness suppressing activity is due to a mixture of several triterpene saponins which have collectively been termed the gymnemic acids. For most people exposed to the effects of GA, sweetness suppression is complete and the effect lasts for about an hour. [Pg.12]

A more detailed investigation of the ziziphins was carried out by Kennedy and Halpern (r7). Included in their work was a phylogenetic analysis of Z. jujuba and Gymnema sylvestre (Figure... [Pg.13]

Figure 3. The effects of Gymnema sylvestre on the taste intensity of sucrose. Reproduced with permission from Ref. 15. Copyright 1969, Rockefeller University Press. Figure 3. The effects of Gymnema sylvestre on the taste intensity of sucrose. Reproduced with permission from Ref. 15. Copyright 1969, Rockefeller University Press.
Figure 4. Phylogenetic classification of Ziziphus jujuba and Gymnema sylvestre. Lineage. Since separation occurs early, at the subclass level, these two species do not appear closely related. Solid arrows indicate single pathways. Open arrows indicate multiple pathways. Reproduced with permission from Ref. 17. Copyright 1980, ILR Press, Ltd,... Figure 4. Phylogenetic classification of Ziziphus jujuba and Gymnema sylvestre. Lineage. Since separation occurs early, at the subclass level, these two species do not appear closely related. Solid arrows indicate single pathways. Open arrows indicate multiple pathways. Reproduced with permission from Ref. 17. Copyright 1980, ILR Press, Ltd,...
Power and Tutin in 1904 reported the discovery of a polyhydric alcohol in the leaves of Gymnema sylvestre Br., one of the Asclepiadaceae. Elementary analysis of the compound and of its esters, as well as oxidation with permanganate to malonic acid, demonstrated the close relationship of the material to dexiro-quercitol. However, this latter compound rotates -f 24° while the compound of Power and Tutin rotated — 73.9° (for the hydrate) and so this levorotatory quercitol is not the enantiomorph of dexiro-quercitol. As yet no information concerning its configuration has been published. [Pg.67]

Gymnema alternifolium is an evergreen tree growing in the forests of Taiwan and the southern part of mainland China. The roots of this plant have been used for detoxification purposes, and for the treatment of edema and fever [138]. No phytochemical studies had been performed on G. alternifolium until a Chinese group isolated several common compounds including p-amyrin and cycloartenol from the ftuits of this... [Pg.43]

There is an extensive literature on Gymnema sylvestre exclusive of its sweetness-inhibiting properties, such as on its potential antidiabetic [149]... [Pg.48]


See other pages where Gymnema is mentioned: [Pg.337]    [Pg.489]    [Pg.467]    [Pg.25]    [Pg.252]    [Pg.282]    [Pg.189]    [Pg.355]    [Pg.642]    [Pg.221]    [Pg.16]    [Pg.16]    [Pg.40]    [Pg.41]    [Pg.41]    [Pg.42]    [Pg.51]   
See also in sourсe #XX -- [ Pg.2 , Pg.5 , Pg.6 , Pg.7 , Pg.8 , Pg.10 , Pg.10 , Pg.13 , Pg.14 ]

See also in sourсe #XX -- [ Pg.13 ]




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Gymnema alternifolium

Gymnema silvestre

Gymnema sylvestre

Gymnema sylvestre gymnemic acids from

Gymnemic acids from Gymnema sylvestr

Sweetness inhibitors from Gymnema sylvestre

Triterpenes gymnema sylvestre

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