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Effects of Enrichment on Amino Acid Profile, Mineral Composition and Anti-Nutritional Factors of Lafun Powder
2022
Uche Anyaiwe | Mattew Oluwamukomi | Taiwo Aderinola | Tayo Fagbemi
‘Lafun” was enriched with soy protein supplements (curd or residue) during the mashing before drying at 10%. The amino acid result indicated that enrichment improved the amino acids contents as well as the protein quality of the products. While enrichment generally improved the mineral element composition, enrichment with the residue significantly improved the mineral composition when compared to enrichment curd. That the products were hygienically produced was confirmed by the non-detection of heavy metals which may suggest it safety for human consumption. Condensed tannins, phytate, oxalate, hydrogen cyanide and trypsin inhibitor were tested as possible anti-nutritional factors in the product and the values obtained were within safe level and correlated with those reported in previous or similar studies. It was concluded that enrichment with soy curd/residue is a safe and viable means to improve the nutritional benefits derivable from “Lafun” especially for those that ‘Lafun” is a major staple.
显示更多 [+] 显示较少 [-]The Effect of Foliar Application of Different Amino Acids (L-Histidine, Methionine) on Cadmium and Zinc Uptake of Wheat
2022
Özlem Ete Aydemir | Kürşat Korkmaz | Faruk Özkutlu
In this study, the effect of foliar L-Histidine and Methinonin amino acid applications on grain cadmium (Cd) and zinc (Zn) uptake on durum wheat grown in soil contaminated with Cd was investigated. The research was carried out according to the randomized blocks design as a pot experiment in greenhouse conditions. In the experiment, Cd doses were applied as control (0 mg Cd kg-1) and (3 mg Cd kg-1). L-Histidine and Methionine amino acids were applied 7 times from the leaf after the start of flag leaf formation in wheat at 0.5 mM doses and harvested after the grain maturity was completed. According to the results obtained, the wheat grain dry matter yield in 3 mg Cd kg-1 polluted soil was 44.5 mg grain-1 in the control, while the dry matter weight was increased with the application of L-Histidine and Methionine from the leaves being 48 and 50 mg grain-1, respectively. It was determined that there were differences in grain Cd and Zn concentrations with the application of amino acids from the leaves at the dose of 3 mg kg-1 cadmium. When the grain Cd and Zn intakes were compared with the control, it was found that the grain Cd concentration decreased, and the Zn concentration increased as a result of the application of amino acids. The high amount of Cd in wheat can make it to the human body through the food chain and is known to cause serious health problems after a certain amount of accumulation. As a result of this study, it is seen that L-Histidine and Methionine are effective in reducing Cd in the grain, and these amino acids probably form a complex with Cd, resulting in less transport.
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