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Articles by Ramatou Seini Sidikou
Total Records ( 2 ) for Ramatou Seini Sidikou
  Haoua Sabo , Hassimi Sadou , Mousbahou Malam Alma , Ramatou Seini Sidikou , Mahamane Saadou and Ibrahim Adamou Amoukou
  Cucurbit seeds are commonly consumed in Niger. In previous studies we determined the protein, fat, minerals, fatty acids, tocopherols and β-carotene contents. The aim of this study was to determine the polyphenol, total flavonoids, condensed tannins contents and the antioxidant capacity of the seeds of the 17 varieties of L. siceraria species and a single variety of C. colocynthis belonging to the Cucurbitaceae family. The variance analysis showed a very significant difference between the varieties for the parameters studied. Indeed, in all of the seeds, the results showed the existence of an antioxidant activity that vary from 3.7-114 μmol EAA/100 g. The phytochemical screening showed fluctuating levels of phenolics from 79.2-203 mg/100 g, flavonoids from 0.08-17.9 mg kg-1 and tannins from 0.05-1 mg kg-1. There is a positive correlation between the antioxidant activity and the polyphenol content (r = 0.79) on the one hand and on the other hand between the polyphenol and flavonoids content (r = 0.76). This study on Cucurbitaceae seeds, highlights their biological potentialities and can therefore contribute to the fight against proliferative diseases such as (type 2 diabetes and hypertension) in Niger.
  Haoua Sabo , Hassimi Sadou , Ibrahim Adamou Amoukou , Mousbahou Malam Alma , Ramatou Seini Sidikou , Mahamane Saadou and Bilbis Lawal Suleman
  Seeds from 17 varieties of Laganaria siceraria and 1 variety of Citrullus colocynthis were analyzed for their proximate amino acids composition. These seeds were produced on the Abdou Moumouni University, Faculty of Sciences and Technology, experimental field. The seeds showed significant difference in their protein content: Lagenaria siceraria (29.45 g/100 g), Citrullus colocynthis (12.40 g/100 g) but were closely related in their amino acids profile. Glutamic, aspartic acids and arginine were the most abundant amino acids while Total Sulphur Amino Acids (TSAA = methionine + cystine) were the limiting amino acids. Leucine was the most concentrated essential amino acid. The percentages of essential amino acids of the seeds were also closely related: Lagenaria siceraria (42.85%) and Citrullus colocynthis (41.51%). Despite a similar amino acids profile, the chemical concentrations of each amino acid were significantly different between varieties (p<0.001) exception of leucine (p = 0.06), showing that the varieties have some genetic differences. In L. siceraria seeds, TSAA ranged from 3.26% to 4.35% and Total Aromatic Amino Acids (TAAA) ranged from 27.14 to 30.55%. In C. colocynthis seeds the concentrations were 4.5 and 27.99%, respectively. When comparing the amino acids in these varieties with the recommended FAO/WHO provisional pattern, the seeds were adequate in histidine, TAAA, threonine and TSAA but supplementation was required for lysine in all varieties and for isoleucine, leucine and valine in some varieties. Predicted Protein Efficiency Ratios (PER) was 1.98 in C. colocynthis and ranged from 1.81 to 2.33 in L. siceraria.
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