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An analytical study of gums from Leucaena glabrata and Spondia purpurea
Author(s) -
Perez G R M,
Sanchez A J,
Perez G S,
Vargas S R
Publication year - 1995
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740680107
Subject(s) - polysaccharide , arabinose , chemistry , hydrolysis , biomphalaria glabrata , galactose , yield (engineering) , exudate , food science , chromatography , biochemistry , botany , biology , fermentation , xylose , zoology , materials science , schistosoma mansoni , metallurgy , helminths , schistosomiasis
Analytical data are presented for the polysaccharide and proteinaceous components of the gum from the seed of Leucaena glabrata , and gum exudate from Spondia purpurea. The yield on hydrolysis of the polysaccharide was β‐galactose, 25% and 61%, L‐arabinose, 60% and 17%, and D‐galacturonic acid, 12 and 22%, respectively. The methoxy and nitrogen values for S purpurea are in the intermediate range, and for L glabrata they are in the low range. Both gums contain a low proportion of hydroxyproline. Aspartic acid and valine are the major aminoacid constituents present in S purpurea and glycine and aspartic acid for L glabrata. The gums have good solubility in water.