Process Standardization for Development and Quality Evaluation of Aromatic Black Rice Incorporated Idli
Background: Black rice also known as purple rice which is rich in anthocyanin, antioxidants, fiber, minerals etc. are abundantly found in Manipur. Black rice is an underutilized crop in Manipur and most parts of North East India although it regarded as the super food. The objective of the present study is to develop Idli by blending the aromatic black rice (Poireiton), white rice (IR20) and black gram (Urad Dal). Methods: The amount of black rice and IR20 are varied (5%, 10%, 15% and 20%) keeping the black gram level at 33% of the total weight. The best combination of formulated Idli is selected by analyzing the variations in fermentation volume, pH, colour values, sensory parameters and its overall acceptability. Sensory parameters of the developed idli are conducted by 9-point hedonic scale by 10 semi trained panel. Result: The Idli with black rice level of 10% and 12 hrs fermentation time has the highest overall acceptability in sensory evaluation. The best treatment of idli has a pH of 5.28, increased in the volume batter as 140% and color values as L*, a* and b* as 58.42, 5.92 and 10.51 respectively.