Background. Orange-fleshed sweet potato is an efficacious source of vitamin A. Substituting wheat flour with orange-fleshed sweet potato in processed products could reduce foreign exchange outlays, create new markets for producers, and result in increased vitamin A consumption among consumers provided there is adequate retention of β-carotene during processing. Objective. To explore whether substituting 38% of wheat flour (by weight) in bread buns (“golden bread”) with boiled and mashed orange-fleshed sweet potato from fresh roots or rehydrated chips would produce economically viable β-carotene–rich products acceptable to Mozambican rural consumers. Methods. Modified local recipes maximized sweetpotato content within the limits of consumer acceptability. Sensitivity analysis determined parameters underlying economic viability. Two samples each of buns from five varieties of orange-fleshed sweet potato were analyzed for β-carotene content. Processed products with at least 15 μg/g product of trans-β-carotene were considered good sources of vitamin A. Results. Golden bread made from fresh roots of medium-intensity orange-fleshed sweet potato varieties met the good source criterion, but bread from lighter intensity sweet potato varieties did not. Bread from rehydrated dried chips was not economically viable.
Authors: Jan W. Low, Paul Jaarsveld, Jan W. Low, Paul Jaarsveld
Contributors: Jan W. Low, Jan W. Low
Subjects: Consumer acceptability of OFSP bread
Publisher: Food and Nutrition Bulletin, vol. 29, no. 2 (2008)
Publication Date: 2008
Rights: Must cite article in Food and Nutrition Bulletin
Keywords: Bread, Consumer acceptability, Mozambique, Product development