褐苞薯蓣的质量研究

目的:评价褐苞薯蓣 Dioscorea persimilis的质量。方法:分析测试产自广西邕宁、博白、北流、桂平、容县的褐苞薯蓣以及怀山药的6项质量指标含量,并进行比较。结果:含水量(％)分别为15.39,18.52,15.41,13.96,15.48,15.74;蛋白质含量(％)分别为7.06,8.45,9.20,9.67,8.63,9.79;淀粉含量(％)分别为84.51,86.51,82.72,83.65,84.19,79.13;水浸出物含量(％)分别为6.19,6.98,8.95,7.41,6.70,9.40;90％乙醇浸出物含量(％)分别为2.00,2.04,2.68,2.20,2.11,3.53;18种氨基酸含量(％)分别为5.23,6.31,6.22,6.78,6.59,6.83。结论:桂平、北流产的褐苞薯蓣质量优于邕宁产褐苞薯蓣,博白、容县产的褐苞薯蓣介于它们之间;桂平、北流产的褐苞薯蓣质量与怀山药相似。结论:褐苞薯蓣作为山药长期药用及食用是有科学根据的。

Study on the Quality of Rhizome of Dioscorea persimilis

Objective: To evaluate the quality of Rhizome of D. persimilis Prain et Burk. Methods: Determined the contents of 6 qualitative indexes in samples of Rhizome of D. persimilis Prain et Burk that were cultivated in Yongning, Bobai, Beiliu, Gulping and Rongxian of Guangxi and in sample of Rhizome of Dioscorea opposita Thunb. that was cultivated in Wenxian, Henan province. Results: The contents of water in them (%): 15.39,18.52,15.41,13.96,15.48,15.74; the contents of protein in them (%) :7.06,8.45,9.20,9.67,8.63,9.79; the contents of starch in them (%) : 84.51,86.51, 82.72, 83.65,84.19,79.13; the contents of water extracts in them (%) :6.19,6.98, 8.95,7.41,6.70,9.40; 90% EtOH extracts in them (%) :2.00,2.04,2.68,2.20,2.11,3.53; the contents of 18 kinds of amino acids in them (%):5.23,6.31,6.22,6.78,6.59,6.83. Conclusion: The quality of Rhizome of D. persimilis Prain et Burk cultivated in Guiping or Beiliu is beter than that of Rhizome of D. persimilis Prain et Burk cultivated in Yongning. The quality of Rhizome of D. persimilis Prain et Burk cultivated in Rongxian or Bobai are between those of Rhizome of D. persimilis Prain et Burk cultivated in Guiping or Beiliu and Rhizome of D. persimilis Prain et Burk cultivated in Yongning. The qualities of Rhizome of D. persimilis Prain et Burk cultivated in Guiping or Beiliu are similar to that of Yam.