TY - JOUR AU - Rejaul Bepary AU - D. Wadikar AU - C. Vasudish AU - A. Semwal AU - G. Sharma PY - 2019/04/11 Y2 - 2024/03/29 TI - Optimisation and Evaluation of Ricebean (Vigna Umbellata) Extrusion Process for Downstream Food Processability JF - Defence Life Science Journal JA - DLSJ VL - 4 IS - 2 SE - General Papers DO - 10.14429/dlsj.4.13556 UR - https://publications.drdo.gov.in/ojs/index.php/dlsj/article/view/13556 AB - Ricebean(Vigna umbellata), a native bean of North-Eastern part of India has not been explored fully for development of convenience foods although it is loaded with various vitamins, minerals, dietary fiber, phytochemicals and bioactive compounds. The effect of extrusion parameters namely moisture content, barrel temperature and screw speed on expansion ratio, extrudate density, and breaking strength was investigated by using response surface methodology. It was observed that moisture content of flour had significant (p<0.05) affect on expansion ratio, extrudate density, and breaking strength of extrudates. The optimal combination of process parameters which resulted in extrudates with maximum expansion ratio but minimum extrudate density and breaking strength were 15 per cent moisture content, 110°C barrel temperature and 350 rpm screw speed. The value of water absorption index, water solubility index, swelling power, oil absorption index, bulk density, true density and colour for optimally extruded ricebean flour (OEF) was found significantly different (p<0.05) whereas value of proximate parameters were insignificant (P>0.05) than the native flour. The OEF was used for different downstream processings such as papadability, friability, steamability, cakeability, gravyability and porridgability and compared with that of native flour for their process quality parameters. The cake prepared with OEF had significantly (p<0.05) less baking time (25 min) than the cake of native ricebean flour (35 min). However, consistency and over all acceptability (OAA) of porridge from OEF was found significantly (p<0.05) higher than porridge of native ricebean flour. Hierarchical cluster analysis on OAA showed that porridgability and cakeability were most influential downstream processes ER -