Physicochemical and Biochemical Characterization, Total Phenolic and Energy Value from Bulbs of Different Onion (Allium cepa L.) Varieties in Senegal  

作　　者：Ndeye Adiara Ndiaye Lahat Niang Modou Dieng Ndeye Coumba Kane Touré Ndeye Adiara Ndiaye;Lahat Niang;Modou Dieng;Ndeye Coumba Kane Touré(Laboratory of Microbiology, Graduate School Polytechnique (ESP)-UCAD, Dakar, Senegal;Water, Energy, Environment and Industrial Processes Laboratory (LE3PI), Graduate School Polytechnique (ESP)-UCAD, Dakar, Senegal;University Sine Saloum El Hadj Ibrahima Niass (USSEIN), Kaolack, Senegal)

机构地区：[1]Laboratory of Microbiology, Graduate School Polytechnique (ESP)-UCAD, Dakar, Senegal [2]Water, Energy, Environment and Industrial Processes Laboratory (LE3PI), Graduate School Polytechnique (ESP)-UCAD, Dakar, Senegal [3]University Sine Saloum El Hadj Ibrahima Niass (USSEIN), Kaolack, Senegal

出　　处：《Food and Nutrition Sciences》2024年第2期129-139,共11页食品与营养科学（英文）

摘　　要：The purpose of this study is to investigate the physicochemical properties of some local varieties of onion (Allium cepa L.) and compare them with an imported variety, all collected in May 2021. Proteins, reducing sugars, lipids, and polyphenol content were estimated according to the AFNOR standardized methods. The determination of calcium, magnesium, iron, sodium, potassium and phosphorus was performed by atomic absorption spectrophotometer coupled with a CCD detector. The results highlighted an average acidity of 0.377% ± 0.002% lower than the value of the imported variety which is 0.520% ± 0.001%. Local varieties have a pH ranging from 6.35 ± 0.003 to 6.42 ± 0.004, while the variety has a pH of 6.36 ± 0.003. The ash and dry matter contents vary respectively from 4.788% ± 0.004% to 8.253% ± 0.003% and 7.945% ± 0.021% to 11.945% ± 0.007% for the local varieties. Moreover, the imported one has ash and dry matter contents of 5.175% ± 0.007% and 10.035% ± 0.021% respectively. The results show that the protein, reducing sugar and lipid contents in the local onion varieties vary respectively from 2.815 ± 0.000 to 15.634 ± 0.001 g·100 g^-1;4.691 ± 0.001 to 12.596 ± 0.002 g·100 g^-1 and 0.006 ± 0.001 to 0.050 ± 0.057 g·100 g^-1. Furthermore, the imported variety has a protein, reducing sugar and lipid content of 5.649 ± 0.002;8.565 ± 0.002 g·100 g^-1 and 0.011 ± 0.010 g·100 g^-1 respectively. The maximum levels of total polyphenols are obtained in the imported variety, Bellani and Gandiol, respectively 9.973 ± 0.001, 4.535 ± 0.002, and 3.425 ± 0.006 mg EAG/g of dry matter. The local varieties have a significant calorific intake of between 35.451 ± 0.001 and 112.980 ± 0.003 kcal·100 g^-1 compared to the imported one with an energy value of 56.953 ± 0.001 kcal·100 g^-1 of dry matter. The bulbs of different onion varieties studied have a fairly high content of mineral elements. The potassium content of local varieties isThe purpose of this study is to investigate the physicochemical properties of some local varieties of onion (Allium cepa L.) and compare them with an imported variety, all collected in May 2021. Proteins, reducing sugars, lipids, and polyphenol content were estimated according to the AFNOR standardized methods. The determination of calcium, magnesium, iron, sodium, potassium and phosphorus was performed by atomic absorption spectrophotometer coupled with a CCD detector. The results highlighted an average acidity of 0.377% ± 0.002% lower than the value of the imported variety which is 0.520% ± 0.001%. Local varieties have a pH ranging from 6.35 ± 0.003 to 6.42 ± 0.004, while the variety has a pH of 6.36 ± 0.003. The ash and dry matter contents vary respectively from 4.788% ± 0.004% to 8.253% ± 0.003% and 7.945% ± 0.021% to 11.945% ± 0.007% for the local varieties. Moreover, the imported one has ash and dry matter contents of 5.175% ± 0.007% and 10.035% ± 0.021% respectively. The results show that the protein, reducing sugar and lipid contents in the local onion varieties vary respectively from 2.815 ± 0.000 to 15.634 ± 0.001 g·100 g^-1;4.691 ± 0.001 to 12.596 ± 0.002 g·100 g^-1 and 0.006 ± 0.001 to 0.050 ± 0.057 g·100 g^-1. Furthermore, the imported variety has a protein, reducing sugar and lipid content of 5.649 ± 0.002;8.565 ± 0.002 g·100 g^-1 and 0.011 ± 0.010 g·100 g^-1 respectively. The maximum levels of total polyphenols are obtained in the imported variety, Bellani and Gandiol, respectively 9.973 ± 0.001, 4.535 ± 0.002, and 3.425 ± 0.006 mg EAG/g of dry matter. The local varieties have a significant calorific intake of between 35.451 ± 0.001 and 112.980 ± 0.003 kcal·100 g^-1 compared to the imported one with an energy value of 56.953 ± 0.001 kcal·100 g^-1 of dry matter. The bulbs of different onion varieties studied have a fairly high content of mineral elements. The potassium content of local varieties is

关 键 词：Allium cepa L. Characterization PHYSICOCHEMICAL BIOCHEMISTRY Total Phenolic 

分 类 号：S51[农业科学—作物学]