走马胎叶片营养成分分析及栽培年限差异比较 后印本

Abstract: Ardisia gigantifolia Stapf. is a common Chinese medicinal material in Southwest China, which is widely used in food stewing and medicinal bath. In recent years, the leaves of A. gigantifolia have been developed to make tea, which has effectively broadened the way of application. In order to clarify the nutritional value of A. gigantifolia leaves, we used the national standard method to analyze and evaluate the mineral elements, general nutrients, amino acids and active components of its leaves in different cultivation years, so as to provide scientific basis for its development and utilization. The results were as follows: (1) The leaves of A. gigantifolia contained rich mineral nutrition, which has the characteristics of high potassium and low sodium food. The contents of P, K, Cu, Fe, Mn and Zn in leaves of 1-year-old plants were significantly higher than those of 2-4-year-old plants (P < 0.05). (2) The contents of general nutrients and amino acids of A. gigantifolia leaves were higher. The contents of vitamin C, total sugar and amino acid in leaves of 4-year-old plants were significantly higher than those of 1～3 years old plants (P < 0.05). (3) The leaves of A. gigantifolia were rich in phenols and saponins, but the content of flavonoids was low. The content of total saponins in 1-year-old and total phenolsin 4-year-old were significantly higher than that in other cultivated years (P < 0.05). The mineral nutrition and saponins were the most abundant in 1-year-old, and general nutrition, amino acids andphenols were the most abundant in 4-year-old of A. gigantifolia plants. Compared with common fruits, vegetables and tea, leaves of A. gigantifolia have higher nutritional value and better development and utilization prospects.