Proximate compositions of Ipomea aquatic Forsk. (leaf, petiole and stem) from Lubok Bungor, Jeli, Kelantan

A. Shariff, Norul Aqidah Shapiai, M. Zakaria, J. H. Akanda, N. Noor, M. Yusop, U. Razali
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Abstract

Water spinach has been recognized as a rich source of minerals, bioactive compounds, vitamins and antioxidants. Its importance has attracted a lot of scientific research to assess their nutrients content. In this study, three parts of water spinach, namely: leaf, petiole and stem were examined. The objective of this study was to determine the content of crude protein, fat, carbohydrate, ash, fibre, moisture content and pH in leave, petiole and stem of water spinach. The differences of the nutritional content between the water spinach parts were then compared. Based on this study, stem contained the highest concentration of crude protein (4.36±0.05 g/100g), fibre (6.02±0.20 g/100g) which is significantly difference from the other two parts, and to some degree, fat (2.36±0.20 g/100g), even though with non-significance difference with petiole. High amounts of carbohydrate (7.53±0.92 g/100g) is recorded in the leaf, which is highly significant from the stem and the petiole and is incline towards alkalinity as indicated by the pH value (6.11±0.02 g/100g). The petiole is significantly rich in moisture (79.26±0.54 g/100g) compared to leaf & stem. Whilst, petiole has the highest percentage of crude ash 10.29±0.75 g/100g, which is significantly different from the leaf at 8.69±0.75g/100g but remains non significance to the stem at 9.75±0.37g/100g. This study showed that stem of water spinach has the most complete nutrients in the form of crude protein, fat and fibre compared to petiole and leaf, and is available all year round.Water spinach has been recognized as a rich source of minerals, bioactive compounds, vitamins and antioxidants. Its importance has attracted a lot of scientific research to assess their nutrients content. In this study, three parts of water spinach, namely: leaf, petiole and stem were examined. The objective of this study was to determine the content of crude protein, fat, carbohydrate, ash, fibre, moisture content and pH in leave, petiole and stem of water spinach. The differences of the nutritional content between the water spinach parts were then compared. Based on this study, stem contained the highest concentration of crude protein (4.36±0.05 g/100g), fibre (6.02±0.20 g/100g) which is significantly difference from the other two parts, and to some degree, fat (2.36±0.20 g/100g), even though with non-significance difference with petiole. High amounts of carbohydrate (7.53±0.92 g/100g) is recorded in the leaf, which is highly significant from the stem and the petiole and is incline towards alkalinity as...
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伊波米亚水生叶的近似组成。(叶,叶柄和茎)产自吉兰丹,吉里,Lubok Bungor
菠菜被认为是矿物质、生物活性化合物、维生素和抗氧化剂的丰富来源。它的重要性吸引了许多科学研究来评估它们的营养成分。本研究对水菠菜的叶、叶柄和茎三个部分进行了检测。测定了水菠菜叶片、叶柄和茎中的粗蛋白质、脂肪、碳水化合物、灰分、纤维含量、水分含量和pH值。然后比较了水菠菜各部分营养成分的差异。茎部粗蛋白质含量最高(4.36±0.05 g/100g),纤维含量最高(6.02±0.20 g/100g),与叶柄差异不显著,但脂肪含量最高(2.36±0.20 g/100g)。叶片碳水化合物含量高(7.53±0.92 g/100g),茎和叶柄碳水化合物含量高,pH值为6.11±0.02 g/100g,呈偏碱性。叶柄的水分含量(79.26±0.54 g/100g)显著高于叶和茎。叶柄粗灰分含量最高(10.29±0.75 g/100g),与叶片(8.69±0.75g/100g)差异显著,与茎(9.75±0.37g/100g)差异不显著。本研究表明,与叶柄和叶片相比,水菠菜茎的粗蛋白质、脂肪和纤维等营养成分最为完整,且一年四季均可获得。菠菜被认为是矿物质、生物活性化合物、维生素和抗氧化剂的丰富来源。它的重要性吸引了许多科学研究来评估它们的营养成分。本研究对水菠菜的叶、叶柄和茎三个部分进行了检测。测定了水菠菜叶片、叶柄和茎中的粗蛋白质、脂肪、碳水化合物、灰分、纤维含量、水分含量和pH值。然后比较了水菠菜各部分营养成分的差异。茎部粗蛋白质含量最高(4.36±0.05 g/100g),纤维含量最高(6.02±0.20 g/100g),与叶柄差异不显著,但脂肪含量最高(2.36±0.20 g/100g)。叶片中碳水化合物含量高(7.53±0.92 g/100g),从茎和叶柄上看,碳水化合物含量极显著,且呈碱性倾向。
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