4种大枣的营养成分分析

对沾化冬枣、乐陵小枣、新疆大枣、"泉城红"4种大枣的常规营养成分、氨基酸、矿物质、总三萜、环磷酸腺苷及黄酮类化合物进行了分析研究。结果表明,4个枣品种均含有17种氨基酸及7种人体必需氨基酸,含有丰富的钙、钠、镁、钾、铁、锌、硒、锶、铜等矿物质,新疆大枣的可溶性固形物含量为质量分数36.50%、水溶性多糖含量为质量分数31.49%、维生素C含量为1 018.00 mg/100 g、环磷酸腺苷的含量为26.17 mg/100 g,均高于其他3种大枣;"泉城红"大枣的总三萜含量最高,为74.26 mg/100 g;乐陵金丝小枣的粗纤维含量最高,为2.85 g/100 g;沾化冬枣的总黄酮含量最高,为404.28 mg/100 g。不同枣品种的不同营养成分含量不同,显示其在药用价值和商品化生产中具有不同的发展潜力。

Nutritional ingredients analysis of four kinds of jujubes

The nutritional ingredients such as general nutrients, amino acids, minerals, total triterpene, cAMP and flavonoids of Zhanhua winter jujube, Laoling zizyphus jujube, Xinjiang jujube and Quanchenghong jujube were analyzed, respectively. The results indicated that there were 17 amino acids in each of the four kinds of jujubes, 7 amino acids were essential to human life among them, and the four kinds of jujubes were also rich in minerals such as Ca, Na, Mg, K, Fe, Zn, Se, Sr, Cu. For Xinjiang jujube, the soluble solids content 36.50%, the soluble polysaccharide content 31.49%, vitamin C content 1 018.00 mg /100 g and the content of cAMP 26.17 mg /100 g were all higher than the other three jujubes. The content of total triterpene of Quanchenghong jujube was the highest, which was 74.26 mg/100 g; The crude fiber content of Laoling zizyphus jujube was the highest, which amounted to 2.85 g/100 g; The total flavone content of Zhanhua jujube was the highest, which was 404.28 mg/100 g. The contents of different nutrient among different kinds of jujubes are different, which show their different development potential in the medicinal value and commercial production.