枣果中总黄酮含量分析

目的]筛选总黄酮含量较高的枣品种,为枣的开发提供新思路。方法]以芦丁为对照制作标准曲线,测定54个枣品种的总黄酮含量,并进行分析。结果]不同枣品种间的总黄酮含量差异很大,最高的与最低的相差30倍。54个枣品种的总黄酮平均含量为2.29mg/g,总黄酮含量最高的是月光枣,达7.04 mg/g,含量较高的有连县木枣、婆枣、临猗梨枣、临汾团枣、夏津妈妈枣、虎枣、保德油枣、冬枣、稷山板枣。40.74%枣品种的黄酮含量在1.65~2.59 mg/g,25.93%枣品种的黄酮含量在2.81~4.08 mg/g。干食枣品种的平均总黄酮含量最高,其次为鲜干兼用枣品种,鲜食枣品种的最低。结论]月光枣的总黄酮含量最高,在开发功能性食品方面有较大潜力。

Analysis on Total Flavonoid Content in Jujube Fruit

Objective] The jujube varieties with higher total flavonoid content were screened to provide new thought for jujube development.Method] With rutin as comparison for making standard curve,the total flavonoid conent of 54 kinds of jujubes were determined and analyzed.Result] There were much differences on total flavonoid content among various jujube varieties,with the discrepancy of 30 times between the highest and lowest content values.The average content of total flavonoid for 54 jujube varieties was 2.29 mg/g,the maximal total flavonoid content was in moonlight jujube,up to 7.04 mg/g,and other jujubes with higher content were Linxianmuzao,Pozao,Linqilizao,Linfentuanzao,Xiajinmamazao,Huzao,Baodeyouzao,Dongzao and Jishanbanzao.The total flavonoid content for 40.74% jujube varieties was between 1.65-2.59 mg/g,and the flavonoid content for 25.93% jujube varieties between 2.81-4.08 mg/g.The average content of total flavonoid for dry edible jujube varieties was the highest,that for fresh and dry dual purpose jujube ones was the next,and the content of fresh edible ones the lowest.Conclusion] The total flavonoid content of Yueguangzao was maximal,and it had a good potential in developing functional food.