Sheng Ji-Ping, Chen Hai-Rong, Shen Lin
College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2009 Feb;29(2):519-21.
A study was carried out on the contents of six trace elements, Ca, Cu, Fe, Mn, Zn and K, in roots, stems, leaves, flowers and seeds of planted Scutellaria baicalensis, by flame atomic absorption spectrophotometry (FAAS). The results indicated that Scutellaria baicalensis was rich in trace elements, meaning that it has a relatively high nutritive value. In stems of Scutellaria baicalensis, the content sequence of the six trace elements was found to be Fe > Mn > Zn = Cu > K > Ca. In leaves, the content sequence of the six trace elements was Fe> Mn > Zn > Cu > K > Ca. In flowers and seeds it was Ca > Fe > Mn > Zn > Cu > K, and Ca > Fe > Zn > Mn > Cu >K, separately, and in roots it was Ca > Fe > Cu > Mn > Zn > K. The stems, leaves, flowers and seeds are rich in Fe, whose content is higher than that in pork liver, Mn and Zn, but lower in Ca. The flowers, seeds and roots are especially rich in Ca, whose content is higher than that in bone, indicating that different parts of Scutellaria baicalensis may accumulate different mineral element. This study, for the first time, researched into Ca, Cu, Fe, Mn, Zn and K contents in different parts of Scutellaria baicalensis, which helps explain the multifunction of Scutellaria baicalensis and provides theoretical basis for further developing its medical and edible value.
采用火焰原子吸收光谱法(FAAS)对人工种植黄芩的根、茎、叶、花及种子中钙(Ca)、铜(Cu)、铁(Fe)、锰(Mn)、锌(Zn)和钾(K)六种微量元素的含量进行了研究。结果表明,黄芩富含微量元素,具有较高的营养价值。黄芩茎中六种微量元素的含量顺序为铁>锰>锌 = 铜>钾>钙;叶中六种微量元素的含量顺序为铁>锰>锌>铜>钾>钙;花和种子中六种微量元素的含量顺序分别为钙>铁>锰>锌>铜>钾和钙>铁>锌>锰>铜>钾;根中六种微量元素的含量顺序为钙>铁>铜>锰>锌>钾。茎、叶、花和种子中铁含量丰富,高于猪肝中铁的含量,锰和锌含量也较高,但钙含量较低。花、种子和根中钙含量尤其丰富,高于骨中钙的含量,表明黄芩不同部位可能积累不同的矿质元素。本研究首次对黄芩不同部位的钙、铜、铁、锰、锌和钾含量进行了研究,有助于解释黄芩的多种功能,并为进一步开发其药用和食用价值提供理论依据。