Zinc is one of the trace elements important in human nutrition and metabolism. Zinc deficiency is now recognized as one of the most severe problems of human malnutrition worldwide. It is caused by low dietary intake of zinc and is related to growth retardation in children, loss of appetite, impaired immune function, and diarrhea.

Beef provide an animal protein of high biological value for consumers at all ages, where they contain all the essential amino acids required for growth. Moreover, beef is good source of different types of vitamins as niacin, riboflavin, thiamine and ascorbic acid as well as sodium, calcium, iron, phosphorus, sulpher and iodine.

Working to achieve food security through the development of a food protein food renewable able to meet the daily dietary needs of protein and the production of food safe and healthy and healthy value added because of its production on the media (substrates) cheap and technological requirements available locally. It is a single-cell protein in addition to finding new and radical solutions to the problem of environmental pollution resulting from the dumping of large quantities of incidental substances, which cause a great deal of pollution and the destruction of useful microorganisms and useful and imbalance in the environmental balance, so it is possible to use microorganisms (bacteria, yeasts, fungi, algae) in the production of biomass It can be used to feed both humans and animals.

Diketopectates (PDK) was quantitatively synthesized by the oxidation of pectin sol with potassium permanganate in alkaline solutions at pH`s > 12. The yield was 97.3 %. The chemical structure of such synthesized pectate-diketones was elucidated by elemental analysis and spectroscopic data. Sol-gel transformation and/or precipitation were observed when PDK was added to polyvalent metal ion electrolytes. The reaction mechanism of synthesis process was suggested and discussed.

Baobab is wildly growing in the Baobab-Belt of Kordofan, Sudan, where the leaves are consumed restrictively even though food insecurity is a wide spread phenomenon. In order to encourage consumption by all households and promote their values, information on the true nutrient density is sought. In a research conducted for that purpose it was found that the average calcium, magnesium, iron and zinc content of the baobab leaves collected from ten villages are 2852±697, 555±156, and 42.39±11.65 and 1.94±0.5 mg/100 g dry matter respectively. The mean values within and between villages are highly variable and the ratio between various minerals is beyond standard e.g. Ca: Mg >5. However, an average of 32g macerated leaves can enrich the calcium content of a daily staple diet per person to adequacy. Similar level of leaves can also optimize the magnesium and iron content of the daily diet per person, but caution is necessary not to overlook the balance of the minerals so that the bioavailability of the minor ones is not hindered.