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-PA
D) 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 literatu
re reports for soybeans (4.6%). Lupinus albus L.2043N had a lower phyt
ic 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 oa
ts. No free monosaccharides were detected, except for a trace of fruct
ose. Proximate analysis showed that L. albus L.2043N was higher in pro
tein (38%) and lower in starch (3%) than other common legumes. Ash con
tent (4%) was similar to other lupin species and similar to soybeans.
Oil content (10%) was lower than in soybeans. The total carotenoid con
tent of the whole grain was 36 ppm.