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An attractive and stable colour is important in the marketability of foods and beverages. The utilization of broken rice as a by-product from agricultural farm can be of immense importance to convert relatively high-energy by-products into more useful and highly nutritious end product by use of microorganisms. In this respect the present investigation was aimed to address the fermentative changes in broken rice as a substrate during the production of food bio-colours through solid state fermentation by using Monascus purpureus (MTCC 410). The 7 days of SSF process was accompanied with the increase in the levels of protein, crude fat, crude fiber and ash content by values of 8.98% to 14.14%, 1.50% to 2.07%, 0.70% to 6.61% and 2.70% to 3.69% respectively while decrease in the level of carbohydrate by values of 74.32% to 27.71%, with lowering pH from 6.6 to 5.5. Present findings concluded that broken rice possesses good potentials for the bioconversion of the high energy organic materials into more useful and highly nutritious food bio-colours by Monascus purpureus (MTCC 410).

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