不同品种睡莲花茶化学成分分析

Analysis on Chemical Components in Flower Tea of Different Varieties of Nymphaea teeagona

[目的]分析不同品种睡莲花茶的化学成分,为其营养、保健价值研究及资源的综合开发利用提供科学依据。[方法]系统分析“爱德拉多”和“蓝鸟”这2个品种的营养成分差异、生理活性成分等。[结果]睡莲品种“爱德拉多”和“蓝鸟”花茶中粗蛋白含量分别为18.8%和15.2%,粗脂肪含量分别为3.9%和4.4%,氨基酸含量分别达19.3%和13.0%,必需氨基酸分别占氨基酸总量的6.03%与4.75%,均含有人体所需的全部8种必需氨基酸。“爱德拉多”和“蓝鸟”花茶中茶多酚含量分别达11.7%和14.7%,且均含有一定量的挥发油。[结论]“爱德拉多”和“蓝鸟”这2个睡莲品种的花茶均具有较高的营养价值及医疗保健作用。

[Objective]The research aimed to analyze the chemical components in flower tea of different varieties of Nymphaea teeagona,and provide scientific basis for its nutrition,health value research and comprehensive development and utilization of resources.[Method]The differences of nutrient composition and physiological active components of the two varieties(N.Eldorado and N.Blue Bird)were systematically analyzed.[Result]The contents of crude protein about N.Eldorado and N.Blue Bird were 18.8%and 15.2%,crude fat were 3.9%and 4.4%,amino acid were 19.3%and 13.0%;two cultivars contained all 8 kinds of amino acids indispensable to the human body,of which required amino acids accounts for 6.03%and 4.75%.The contents of tea polyphenol in these cultivars were 11.7%and 14.7%.What’s more,volatiles were found in these cultivars.[Conclusion]The two Nymphaea teeagona varieties of N.Eldorado and N.Blue Bird have high nutritional value and health protection function.