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Chemical composition and utilisation of the roots of Nymphaea lotus L
Author(s) -
Hujjatullah S.,
Bloch A. K.,
Jabbar A.
Publication year - 1967
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.2740181007
Subject(s) - raffinose , fructose , sucrose , chemistry , acid hydrolysis , formic acid , paper chromatography , hydrolysis , chromatography , mannitol , food science , carbohydrate , fraction (chemistry) , sugar , chemical composition , biochemistry , organic chemistry
The root of Nymphaea lotus L. has been subjected to proximate analysis. The carbohydrate fraction has been investigated by paper chromatography after extraction successively with cold water, 80% ethanol and cold 5% sodium hydroxide and by quantitative chemical analysis. Glucose, fructose and sucrose were identified in the cold water extract and mannitol, galacturonic acid and raffinose in the 80% ethanolic extract. The polysaccharide fraction on complete hydrolysis with 90% formic acid, was shown to contain only glucose. Quantitative analysis of the protein fraction by 2‐dimensional paper chromatography gave ten amino acids. Samples of roots were dehydrated, chipped or pickled, and subjected to preliminary assessment by a taste panel.