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Protein and Fiber Supplementation Effects on Extruded Cornmeal Snack Quality
Author(s) -
CAMIRE MARY ELLEN,
KING C. CLAY
Publication year - 1991
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1991.tb05376.x
Subject(s) - food science , soy protein , fiber , extrusion , plastics extrusion , chemistry , moisture , cellulose , flavor , materials science , composite material , biochemistry
Cornmeal snacks containing blends of soy protein isolate (SPI) with cotton linter cellulose (CEL) or soy cotyledon fiber (SF) were produced with a twin screw extruder. SPI increased expansion and reduced collet bulk density. Samples containing soy materials were darker than those containing 10% CEL or only cornmeal. CEL reduced expansion and increased residual moisture. The effects of SF were intermediate between those of SPI and CEL. Samples containing either type fiber had slight increases in nitrogen solubility and higher losses of available lysine after extrusion. A sensory evaluation panel found samples with 15% SPI and 10% either fiber were tan and soft, with a nutty or grain flavor.