IS 17781:2021 is the Bureau of Indian Standards specification for vitamin and mineral premix used in the manufacture of fortified rice kernels — covering the composition, micronutrient content, physical characteristics, stability, safety, and marking requirements that premix manufacturers must satisfy to be legally certified and commercially qualified under India's mandatory BIS certification framework.
BIS certification under IS 17781:2021 is mandatory for vitamin and mineral premix manufacturers supplying the fortified rice kernel production chain. Government procurement agencies, fortified rice kernel manufacturers supplying the PDS and Mid-Day Meal Scheme, and regulated food fortification supply chains require BIS-certified premix as a non-negotiable input material qualification.
Key requirements under IS 17781:2021 include:
Micronutrient Composition
Defined concentration ranges for each vitamin and mineral in the premix — including iron, folic acid, vitamin B12, and other specified micronutrients. The standard defines minimum and maximum content limits per kilogram of premix to ensure that when blended into rice at the specified ratio, the fortified rice delivers the target micronutrient levels per serving.
Homogeneity
Uniformity of micronutrient distribution throughout the premix batch — ensuring consistent nutritional delivery in every portion of fortified rice produced from the premix. Poor homogeneity produces inconsistent micronutrient levels across a production batch, defeating the nutritional purpose of fortification.
Vitamin Stability
Stability requirements for labile vitamins — particularly vitamin B12 and folic acid — under defined storage conditions and temperature exposures. Vitamins that degrade rapidly during storage or processing deliver reduced nutritional value in the finished fortified rice, making stability performance a critical quality parameter.
Physical Characteristics
Particle size, flowability, and bulk density requirements for the premix — ensuring consistent blending performance when the premix is incorporated into rice kernel extrudate during fortified rice kernel manufacturing.
Moisture Content
Maximum moisture content limits — controlling premix stability, caking tendency, and microbiological safety during storage and transport.
Heavy Metal and Contaminant Limits
Maximum limits for heavy metals including lead, arsenic, cadmium, and mercury — and other contaminants — ensuring the premix does not introduce food safety hazards into the fortified rice supply chain that ultimately reaches consumers through government nutrition programmes.
Microbiological Requirements
Total plate count, coliform, yeast and mould limits — ensuring the premix meets food-grade microbiological safety standards throughout its shelf life.
Packaging Requirements
Packaging material specifications that protect the premix from moisture, light degradation, and contamination during storage and distribution.
Marking Requirements
Manufacturer identification, product name, batch number, date of manufacture, best before date, micronutrient content declaration, net weight, IS 17781 reference, and ISI Mark must be clearly and permanently marked on every certified consignment.
Full details on IS 17781:2021 requirements and the BIS certification process are available on our dedicated service page.
Also Read : BIS Certification for Vitamin and Mineral Premix for Fortified Rice Kernels - IS 17781:2021