Investigation on Mineral Characterization of Powder Injera

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Date

2019-10

Authors

Mulatu, Betsegaw

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Publisher

Addis Ababa University

Abstract

Injera is a fermented, sour bread consumed as a staple food in Ethiopia and Eritrea. The bread can be prepared from various cereals but tef [Eragrostis tef (Zucc.) Trotter] is the most preferred ingredient. A deep study on its inherent characteristics related to processing of injera is needed for its use in various food applications. This research attempt to use spray dryer technology to cook injera, as an alternative method of injera processing. And the product is forwarded for the use of as a food supplement. Also the researcher study the impact of type of tef white and red on nutritional composition of powder injera and impact of fermentation time at 24h, 48h, and 72h on moisture content, ash content, fiber content, iron content, zinc content, calcium content, potassium and sodium content of nutritional composition of powder injera was tested using statistic and regression analysis. Microsoft excel and two factorial three level design expert 11 is used to analyze the experimental result. It is observed that red tef has higher calcium, zinc, and iron value than the white tef but the white tef powder injera has sodium and potassium content than the red tef powder injera. And it is observed that at fermentation time of 48h the powder injera has higher mineral content than at fermentation time of 24h and 72h.

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Keywords

red tef, white tef, fermentation time, powder injera, nutritional composition, foodsupplement

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