Chemical, nutritional and sensory properties of bread supplemented with lupin seed (Lupinus albus) products.
Sweet lupin Lupinus albus seed flour (SLSF), two sweet lupin protein isolates (SLPI-I and SLPI-II) and sweet lupin seed protein concentrate (SLSPC) were added to wheat flour (WF) in an amount of 3, 6, 9 and 12% of wheat flour. The effects of lupin products supplementation on physical dough properties were studied using a Brabender farinograph. Loaves were prepared from the various blends using the straight dough procedure and then evaluated for volume, crust and crumb colour, crumb texture, flavour and overall quality. Water absorption, development time and dough weakening were significantly (P < 0.05) increased as the lupin product levels increased in all doughs; however, dough stability decreased. Lupin products could be added to WF up to 9% level (SLPI-I and SLPI-II) and 6% level (for other lupin products), without any observed detrimental effect on bread sensory properties. No significant (P > 0.05) differences were recorded in loaf volume between control and breads containing SLPI-I and II (up to 9% level) and SLSPC (up to 3% level). Addition of lupin products increased the content of protein and total essential amino acids, especially lysine. The addition also improved in-vitro protein digestibility.
Mubarak
A E
AE
University of Menofiya, Faculty of Specific Education, Home Economic Department, ET-Ashmon City, Egypt. mubarak63@hot.mail.com
D001939:Bread / Q000032:analysis / Q000592:standards*; D004044:Dietary Proteins / Q000032:analysis* / Q000494:pharmacology; D005433:Flour / Q000032:analysis / Q000592:standards*; D005511:Food Handling / Q000379:methods; D005524:Food Technology; D005527:Food, Fortified; D006801:Humans; D009753:Nutritive Value; D012639:Seeds / Q000737:chemistry*; D013649:Taste; D014908:Triticum / Q000737:chemistry*
D004044:Dietary Proteins