Abstract
Fortification can help individuals achieve adequate nutritional intake. Foods may be fortified with soy flour as a source of protein for individuals limiting their intake of animal products, either due to personal dietary preference or to reduce their intake of saturated fat, a known risk factor for heart disease. This study determined the feasibility of fortifying peanut butter graham crackers by substituting soy flour for all-purpose wheat flour at 25%, 50%, 75%, or 100% weight/weight. Graham crackers fortified with soy flour were compared to similarly prepared nonfortified peanut butter graham crackers. Moisture contents of all graham crackers were similar. Consumers (n=102) evaluated each graham cracker using a hedonic scale and reported liking the color, smell, and texture of all products. However, unlike peanut butter graham crackers fortified with lower levels of soy, graham crackers fortified with 100% weight/weight soy flour had less than desirable flavor, aftertaste, and overall acceptability. Overall, this study shows that fortification of peanut butter graham crackers up to 75% weight/weight with soy flour for all-purpose wheat flour is acceptable.
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