Cereal Chem 72:643-647  |  VIEW ARTICLE

Composition of Lupinus albus.

A. A. Mohamed and P. Rayas-Duarte. Copyright 1995 by the American Association of Cereal Chemists, Inc. 

Analysis of Lupinus albus L.2043N is described. Total oligosaccharide content determined with high pH anionic chromatography, high-pressure liquid chromatography, and pulsed amperometric detection (HPAC- HPLC-PAD) yielded 5.3%. The most abundant oligosaccharide was stachyose (2.8%), followed by sucrose (1.8%), raffinose (0.4%), and verbascose (0.3%). Verbascose plus stachyose (3.1%) content was lower than the literature reports for soybeans (4.6%). Lupinus albus L.2043N had a lower phytic acid content (0.03%) than the reported values for soybeans (1.54%). Uronic acid (12%) and total dietary fiber (34.2%) content were three times higher in the lupin samples than in hard red spring wheat and oats. No free monosaccharides were detected, except for a trace of fructose. Proximate analysis showed that L. albus L.2043N was higher in protein (38%) and lower in starch (3%) than other common legumes. Ash content (4%) was similar to other lupin species and similar to soybeans. Oil content (10%) was lower than in soybeans. The total carotenoid content of the whole grain was 36 ppm.