Abstract
Iron deficiency (ID) is considered to be the most micro-nutritional problem, and the main cause of anaemia, called Iron Deficiency Anaemia (IDA). Nowadays, iron fortification is the most practical and priority solution for IDA alleviation. For toddler, iron fortification could be performed on complementary food of breast milk, such as instant porridge. Iron fortification was conducted using mixing and agitation method to prepare instant porridge from purple sweet potato flour. The aims of this work were to investigate the effect of impeller position and baffle width on the uniformity of iron concentration. Preparations of purple sweet potato flour and iron fortification were conducted using drying and mixing agitation method, respectively. Two independent variables, i.e. impeller position (1, 1.8, 2.6, 3.2 cm from the bottom of stirred tank) and baffle width (1.1, 1.4, 1.8, 2.3 cm), were used to investigate the uniformity of iron. Iron concentration was determined by atomic absorption spectrophotometer (AAS). The results depict that impeller position 1.8 cm from the bottom of the stirred tank and baffle width 1.1 cm provide a relatively good operating condition to obtain the high level of iron uniformity.
Highlights
Vitamin A, iron, zinc and iodine have important roles to maintain body metabolism, improved health, and well-being of humans
Iron fortification could be performed on complementary food of breast milk, such as instant porridge
The effect of impeller position on iron concentration was investigated in the stirred tank
Summary
Vitamin A, iron, zinc and iodine have important roles to maintain body metabolism, improved health, and well-being of humans. IDA brings adverse consequences, such as lower cognitive capability and reduced immune functions of young generation in Indonesia, [3,4]. In accordance with these serious impacts, IDA prevention has to be priority by the Government and Health Organization. Iron fortification is the most practical and priority solution for IDA alleviation [5,6]. Iron fortification could be performed on complementary food of breast milk, such as instant porridge. Purple sweet potato flour is one of potential ingredients for instant porridge due to its interesting colour, high level of beta carotene and prolonged storage time. Beta carotene is very useful for children as the main dietary source of vitamin A, essential for growth, and immune function [7]
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