But the more important effect of teff fermentation is the increase in the nutritional content, because of the decreasing relationships of iron with phytates
and of iron and tannins .
, found in legumes, nuts, seeds and grains, hold on to important minerals like iron, zinc and calcium.
In tested legumes, antinutritional compounds like phytates
and trypsin inhibitor activities were higher in kidney bean whereas, haemagglutinin-lectin content in broad bean.
Since the 1930s, phytates
have been thought of as anti-nutritional factors
Occurrence, Distribution, Content and Dietary Intake of Phytate
, Food Phytates
, pp: 25-52.
The need to improve iron and zinc bioavailability was based on the knowledge that absorption of these minerals from plant foods was low due to the non-heme form of iron and due to the high molar ratios of phytates
and tannins to iron and zinc [22,23].
But they are also high in phytates
, which can stop minerals being absorbed.
NUTS AND BEANS PHYTATES
, found in the seeds of all whole grains, beans, nuts, and seeds, have been shown to detoxify excess iron in the body, which otherwise can generate a particularly harmful kind of free radical called hydroxyl radicals.
bind up with iron in the human intestinal tract and keep iron from being absorbed.
These components are protease inhibitors, isoflavones, phytosterols, phenolic acids, phytates
All of the beneficial parts (bran, germ, and endosperm, and phytonutrients, such as phytates
and phenolic acids) are retained in the whole grain flour.
Intake of fluids, fibre, phytates
and foods rich in Vitamin B6 are good.