野生枸杞与栽培枸杞营养成分对比分析

目的：对比分析野生枸杞与栽培枸杞营养成分。方法：在常压微沸条件下实验采用浓硝酸-双氧水消解枸杞样品，并采用火焰原子吸收法对枸杞中所含的金属元素的含量进行测定。结果：栽培枸杞柠檬酸、Vc、氨基酸、蛋白质、总糖含量显著高于野生枸杞，但醛糖、还原糖、果胶、粗脂肪的含量显著低于野生枸杞，而栽培枸杞中所含的 Mn、Co、Na、Ca、Fe、Mg、Cu、Zn 显著低于野生枸杞。结论：栽培枸杞中的矿质元素 K、氨基酸、柠檬酸、Vc、蛋白质以及糖分含量较高，但野生枸杞中则含有较高的矿质元素Mn、Co、Na Fe、Mg、Cu、Zn、醛糖、还原糖、果胶含量较高，检测方法简便易行，检测结果准确可靠。

A nutrients comparative analysis of wild and cultivated wolfberry lycium

Objective： A comparative analysis of wild and cultivated wolfberry nutrients was done. Methods： Micro-boiling conditions at atmospheric pressure experiments was applied for concentrated nitric acid-hydrogen peroxide wolfberry sample digestion, and flame atomic absorption spectrometry was used for measuring the content of wolfberry contained metal elements. Results： Wolfberry cultivation of citric acid, Vc, amino acids, protein, total sugar content was significantly higher than the wild medlar, but aldose, sugar, pectin, crude fat content was significantly lower than that of wild wolfberry, wolfberry cultivated contained Mn, Co, Na, Ca, Fe, Mg, Cu, Zn were significantly lower than the wild medlar. Conclusion：Wolfberry cultivation contain more mineral elements K, higher amino acid, citric acid, Vc, protein and sugar content, but in the wild wolfberry contains a high mineral elements Mn, Co, Na Fe, Mg, Cu, Zn, sugar, pectin content is high, the detection method is simple, accurate and reliable.