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Tannins Ellagitannins

Hydrolyzable tannins Ellagitannins Pomegranate juice Strawberry Blueberry Raspberry Blackberry Longan seed... [Pg.75]

The remaining wood components make up the fraction that can be extracted with different solvents, mainly comprising volatile and non-volatile acids, sugars, steroids, hydrolysable tannins (ellagitannins), volatile phenols, terpenes, lactones, etc. This review will deal with the volatile components that can leach out into the wine during barrel aging and as a result may affect the sensory attributes of wine. [Pg.297]

Simple phenolics and their derivatives (benzoic, gallic, ellagic, gallotannins and ellagitannins), flavonoids and condensed tannins... [Pg.308]

The most widely used method is based on the reaction between potassium iodate and hydrolyzable tannins (Hartzfeld and others 2002). This method provides a good estimate for gallotannins but underestimates the content of ellagitannins. [Pg.65]

Hartzfeld PW, Forkner R, Hunter MD and Hagerman AE. 2002. Determination of hydrolyzable tannins (gal-lotannins and ellagitannins) after reaction with potassium iodate. J Agric Food Chem 50(7) 1785—1790. [Pg.83]

Chart 8.1.S Shikimates (skeletons) widespread on land (5max=57, av=43 5//ftnax=0.48, av=0.39). Tannins lignans epigallocathechin gallate (Asian black tea. Camellia sinensis L.) Kuntze, Theaceae, Ang. MI) procyanidins and prodelphinidins (widespread in plants) soluble hydrolyzable tannins gallotannin (myrobalan. East Indian trees, Terminalia spp., oak, Quercus spp., Lithocarpus spp., and sumac, Rhus spp.) ellagitannin (Myrtaceae). [Pg.65]

Tanaka, T. et al.. Tannins and related compounds. CXXIV. Five new ellagitannins, platycaryanins A, B, C, and D, and platycariin, and a new complex tannin, strobilanin, from the fruits and bark of Platycarya strobilacea Sieb. et Zucc., and biomimetic synthesis of C-glycosidic ellagitannins from glucopyranose-based ellagitannins, Chem. Pharm. Bull, 41, 1708, 1993. [Pg.615]

Potentilla erecoa (L.) Rauschel. P. tormentilla (L.) Rauschel. Tannins, catechins, ellagitannins, phlobaphene." Gargle for throat infections, mouthwash for canker sores and infected gums. [Pg.289]

Complex tannins are defined as tannins in which a catechin unit (1.39) is bound glycosidically to either a gallotannin or an ellagitannin unit. As the name implies, the structure of these compounds can be very complex. An example is Acutissimin A (1.99). This is a flavogallonyl unit bound glucosidically to Cl, with an additional three hydrolyzable ester bonds to a D-glucose-derived open-chain polyol. [Pg.29]

This complex tannin is formed during the aging process of red wine, whereby the catechin unit originates from the grapes, and the ellagitannin, in this case vescalagin, originates from the oak barrels. [Pg.29]

Galloyl-2,4-dehydro-hexahydroxydiphenoyl-3,6-hexahydroxy-diphenoyl-glucoside (ellagitannin, hydrolysable tannin)... [Pg.311]

In the same manner, not all ellagitannins are hydrolyzable as those with a C-glycosidic bond will not break down with tannin-active enzymes or hot dilute acids to produce free ellagic acid. [Pg.185]

See other pages where Tannins Ellagitannins is mentioned: [Pg.433]    [Pg.194]    [Pg.562]    [Pg.869]    [Pg.433]    [Pg.194]    [Pg.562]    [Pg.869]    [Pg.405]    [Pg.56]    [Pg.73]    [Pg.137]    [Pg.108]    [Pg.110]    [Pg.118]    [Pg.118]    [Pg.559]    [Pg.597]    [Pg.369]    [Pg.279]    [Pg.1261]    [Pg.26]    [Pg.130]    [Pg.156]    [Pg.22]    [Pg.22]    [Pg.29]    [Pg.136]    [Pg.518]    [Pg.545]    [Pg.170]    [Pg.21]    [Pg.31]    [Pg.31]    [Pg.311]    [Pg.311]    [Pg.589]    [Pg.183]    [Pg.192]    [Pg.192]    [Pg.193]    [Pg.198]   
See also in sourсe #XX -- [ Pg.305 , Pg.547 , Pg.562 , Pg.563 , Pg.564 , Pg.565 , Pg.566 , Pg.567 , Pg.568 ]



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