Guar seeds

Galactomannans have been treated with a-D-galactosidase, and the extent of removal of D-galactose has varied considerably.88,101 105 With enzymes from lucerne104 and guar seed,105 essentially all of the D-galactosyl groups... 

A way of reconciling the observed proportions of mannobi-, tri-, and tetra-oses and heterosaccharides,16113 released by guar-seed jS-D-mannanase (from hot-water-soluble carob galactomannan), with this model, would be if the enzyme preferentially hydrolyzes appropriate, unsubstituted d-mannosyl residues (as in 31) then, it would only be able to hydrolyze on the reducing side of a substituted D-mannose (as in 32) if there were a... 

Hemicelluloses are non-cellulosic low molecular weight polysaccharides that are found together with cellulose in plant tissues 1311. In the cell walls of land plants, xylan is the most common hemicellulosic polysaccharide, representing more than 30% of the dry weight 1321. Most xylans are heteropolysaccharides which are composed of 1,4-linked (3-D-xylopyranosyl residues 133, 134, 135). This backbone chain is substituted with acetyl, arabinosyl, and glucuronosyl residues 133. Homoxylans, on the other hand, consist of xylosyl residues exclusively and have been isolated from esparto grass 136, tobacco stalks 137, and guar seed husk 138. ... 

Gums are macromolecular substances containing polysaccharides extracted from natural plants. Gums can be used as depressants directly or after chemical modification. Guar gum which is a depressant for silicate minerals is a product obtained from the processing of the guar seeds common to the Arabic countries and India. 

Guaran. Principal polysaccharide from endosperm of guar seeds, Cyamopsis tetragonaloba (L.) Taub., Legumi-nosae Heyne, Whistler, J. Am. Chem. Soc. 7, 2249 (1948). Structure Whistler, Durso, ibid. 74, 5140(1952). Configuration Koleske, Kurath, J. Polymer Sci. Pt. A, 2, 4123... 

What is the name of the enzyme from germinated guar seed ... 

Yes, it is obtained from germinated guar seeds and was a crude guaranase mixture. The crude mixture was capable of bringing about a rapid and extensive modification of the galactomannan. 

This shrub [100] is a rich source for the seed galactomannan and has a close structural similarity with guar seeds which have galactose and mannose in a 1.01 1.50 ratio. It has been grafted with poly(acrylonitrile) using persulphate/ ascorbic acid redox initiator [41], and under optimal conditions 294 %G and 85.3% E have been achieved. 

Dhugga K.S., Barreiro R., Whitten B., Stecca K., Hazebroek J., Randhawa G.S., Dolan M., Kinney A.J., Tomes D., Nichols S., and Anderson P. 2004. Guar seed (l-mannan synthase is a member of the cellulose synthase super gene family. Science 303 363 366. 

Guarmehl guar meal/ guar seed meal Guar-Samen-Mehl guard vb... 

Guar gum is commercially extracted from the guar seeds by a mechanical process of roasting, differential attrition, sieving and polishing. During these processes, the seeds are broken and the germ is separated from the endosperm. Two halves of the endosperm... 

Guaran, the galactomannoglycan(i 2) from guar seeds is believed to be a linear )S-d-(i->-4)-linked mannan with single D-galactopyranose units Bibliography p. 231... 

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