Authors : RAZAFITSALAMA Victorien; RANDRIAMIALY Jean Dominique

Volume/Issue : Volume 9 - 2024, Issue 11 - November

Google Scholar : https://tinyurl.com/ymw7yyh8

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DOI : https://doi.org/10.38124/ijisrt/IJISRT24NOV349

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Abstract : The shortage of rice stocks during the lean season pushes farmers to resort to the search for nutritional alternatives and substitutes. Also the objective of this work is to contribute to the fight against malnutrition and food insecurity, by promoting the natural plant genetic resources available in Madagascar. To do this, a preliminary investigation was carried out in the Ambato-Boeni District. It appears that the Nymphaea lotus tuber is frequently used in the preparation of different dishes such as N.lotus paste, ball and sauce. Biochemical analyzes and phytochemical screening were carried out. The results indicate that Nymphaea lotus tubers are rich in carbohydrates (88.59 ± 0.02% of dry matter) but the protein and lipid contents are relatively low, respectively 8.59 ± 0.04. % and 0.46 ± 0.03%. Among the different mineral elements analyzed, potassium holds first place and abounds up to 566.37 ± 0.04 mg per hundred grams of ash. Photochemical screening reveals that the Nymphaea lotus tuber contains different secondary metabolites including polysaccharides, flavonoids, tannins and finally polyphenols. The presence of these latter anti-nutritional and toxic factors leads to a reduction in edibility and/or digestibility of Nymphaea lotus starch without prior treatments such as soaking in water and cooking.

Keywords : Nymphaea Lotus, Nutrition, Lean Period, Antinutritional Factors, Phytochemical Screening.

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