Gums cherry

The preparation of arabinose from various plant products has been repeatedly described in the literature. The most important sources are cherry gum,2 beet pulp,3 and as has recently been shown by the present authors, mesquite gum. The chief advantages of the preparation from mesquite gum are that the material is readily available in large amounts, the process is simple, and the yield comparatively large. The present procedure is a modification of the original method of Anderson and Sands. 

D-Arabinose Gum arabic. Plum and cherry gums. Constituent of glycoproteins. ... 

The two most important natural pentoses, 1 -arabinose and 1 -xylose, occur in nature as polymeric anhydrides, the so-called pentosans, viz. araban, the chief constituent of many vegetable gums (cherry gum, gum arabic, bran gum), and xylan, in wood. From these pentapolyoses there are produced by hydrolysis first the simple pentoses which are then converted by sufficiently strong acids into furfural. This aldehyde is thus also produced as a by-product in the saccharification of wood (cellulose) by dilute acids. Furfural, being a tertiary aldehyde, is very similar to benzaldehyde, and like the latter undergoes the acyloin reaction (furoin) and takes part in the Perkin synthesis. It also resembles benzaldehyde in its reaction with ammonia (p. 215). 

The same procedure has revealed that the aldobionic acid obtained from damson gum and cherry gum by acid hydrolysis has the structure V. Methylation gives the methyl ether VI and when this is subjected to hydrolysis with dilute mineral acid there results 3,4,6-trimethyl-D-mannose (VII) and 2,3,4-trimethyl-D-glucuronic acid (VIII). 

Gums may be divided into 3 classes a) Arahin type, completely sol in w, such as gum arabic b) Bassorin type, such as gum dragon, si sol in w and c) Cerasin type, such as cherry gum, swelling in w... 

By boiling gum arabic, cherry gum, com pith, elder piih with dilute sulfuric acid. 

Cherry Gum. Part III. An Examination of the Products of Hydrolysis of Methylated Degraded Cherry Gum, Using the Method of Paper Partition Chromatography, J. K. N. Jones,/. Chem. Soc., (1949) 3141-3145. 

Gum arabic, cherry gums, wood gums, proteoglycans. 

Damson gum resembles gum arabic in its intricately branching chain as well as in the carbohydrate content and general arrangement. D-Mannose and a small amount of n-xylose were found in place of L-rhamnose. The aldobionic acid present in this gum Is 2-j9-n-gluco-pyrano-uronosido-D-mannose. While the work on the structure of cherry gum is less advanced, it appears to be of the same type as damson gum and gum arabic. The aldobionic acid is the same as that in damson gum. 

Figure 3. Five gum samples from species of major artistic importance. Note the similarity in shade of the kuteera, karaya, and pale gum arabic tears. All three tears of gum arabic are from the same tree yet one is as dark as the cherry gum. Chemically, the pale and dark samples are identical by monosaccharide analysis. Note the opacity of the sample from Anogeissus latifolia.

Prunus. Gums from this genus are often called by the general name cherry gum or the outmoded term Bassora. The latter term has been used to indicate any insoluble or partially soluble gum. Prunus gums have not been as widely utilized as the acacias because of their poor solubility. However, their extremely broad geographic distribution and close association with humans requires that they be tested for in any thorough analysis. Birstein has presented evidence for the use of Prunus... 

P. cerasus (3,39) Cherry gum See P. amygdalus Sour cherry, dwarf cherry. 

When mucilage is collected in the form of an exudate from shrubs and trees it constitutes what is termed a gum. Many of these gums are used in pharmacy, medicine and the arts. The three most important from a pharmaceutical standpoint are Acacia, yielded by Acacia Senegal and other species of Acacia Tragacantb, yielded by Astragalus gummifer and other Asiatic species of Astragalus and Cherry Gum, obtained from Prunus Cerasus and its varieties. 

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