Publication: Anchovy powder enrichment in brown rice-based instant cereal: a process optimization study using Response Surface Methodology (RSM)
Loading...
Total Views 0
total viewsTotal Downloads 1
total downloadsDate
2021-06-06
Journal Title
Journal ISSN
Volume Title
Funder
Publisher
published by Wiley Periodicals LLC.
Cite this Item
Abstract
There is a need for expanding the utilization of small fish as they constitute an undervalued and important source of protein and micronutrients in many developing
countries suffering from micronutrient deficiencies. One way to increase consumption and health benefits is to add nutrient-rich fish meal into staple food ingredients.
In this study, Response Surface Methodology (RSM) was applied to optimize the
processing of an instant rice-based cereal enriched with anchovy powder. The BoxBehnken design was used to study the effect of principal processing variables (drying
temperature, drum rotation speed, and slurry solids concentration) on product water
activity, color, bulk density, and water solubility index. Viscosity, consistency, and cohesiveness of the reconstitute cereal were also evaluated. Empirical models were developed to describe the relationship between independent and dependent variables
and showed regression coefficients (R2
) ranging between 71% and 98%. Higher drying temperatures resulted in reduced water activity, darker product color, and lower
consistency. While drum speed influenced (p < .05) product color and water-binding
capacity, bulk density, and consistency of the reconstituted product was associated
with slurry solids concentration. Optimal processing conditions obtained from the
study were temperature of 130°C, drum speed of 9.3 rpm, and solids concentration
of 20.5%. These conditions would be useful in the production of brown rice-based
instant cereal enriched with anchovy powder with desired quality properties.
Description
Keywords
KEYWORDS anchovies, brown rice, drum drying, instant cereal, optimization, small fish