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EFFECT OF PROCESS PARAMETERS ON PHYSICOCHEMICAL PROPERTIES AND QUALITY OF ROLLED WHOLE GRAIN CORN FLAKES - A RESPONSE SURFACE STUDY

. Abdullah Salik, Imran Pasha, Nuzhat Huma and Amer Jamil


Abstract

The commercially produced breakfast cereals are mostly prepared using refined flour, which lacks essential nutrients and contributes to nutritional deficiencies. The breakfast cereal industry in Pakistan is still under-developed, this research was aimed at optimizing and developing processing technology to produce rolled corn flakes using traditional steam rolling methods. Torque for the corn was highly significant (P < 0.001) and values of R2 and R2 adj. were 0.994 and 0.933 respectively. Torque decreased with increasing value of input variables and its mean response was 17.504±0.315 Nm and 16.81±1.184 Nm. The water absorption index (WAI) for rolled corn was 3.57725. Crude fat, crude protein, crude fiber and ash content for corn flakes were observed as 3.86±1.52, 7.57±1.65, 5.88±2.06, and 1.27±0.24, respectively. Cooking time (CT) was the most dominant factor in determining the product characteristics, followed by baking time (BT) and baking temperature (BH). It can be deduced that breakfast cereals are a good source of nutrients and have good bioavailability of minerals. Commercial processing can be performed using this data.

Keywords: Rolled corn, corn flakes, process optimization, food processing

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