The Obstacles to the successful introduction
of rice enrichment by premix
method includes the following:
- The cost of the imported premix
- The difficulty of ensuring that the premix is added to rice in correct proportion in the mill.
- The slightly greater cost of enriched rice as compared with that of ordinary rice, which affects its sales to lower income groups.
- Loss of added vitamins, which may occur when enriched rice is cooked in excess water that is subsequently discarded according to current practice in some rice eating countries.
- Issues related to standards and analysis, part insularly of imported rice.
- Lack of knowledge about the lose of added nutrients during storage FAO (1854).
Under-milling has been employed to retain B vitamins in milled rice, but the shelf-life
of under-milled rice is shorter than
that of milled rice and the product is
less white (FAO 1954). Some consumers re-milled the under –milled rice to
remove the rancid outer layer and to make the rice white, with an
accompanying lost of B vitamins. Mille rice
has also been used for enrichment
programmes for vitamin A as well as B vitamins in Thailand and Philippines FAO (1954).