Determination and comparative analysis of amino acid and trace element contents in the aboveground and root parts of Miaoyu Codonopsis pilosula in Wushan county
Objective To determine and compare the contents of amino acids and trace elements in the aboveground and root parts of Miaoyu Codonopsis pilosula in Wushan county.Methods Extracts of the aboveground and root parts of Miaoyu Codonopsis pilosula were obtained and isolated.According to the standards of the Chinese Pharmacopoeia,the amino acids and trace elements were determined using an automatic amino acid analyzer and atomic absorption spectrophotometer,re-spectively.Results Overall,17 amino acids were detected in both the aboveground and root parts of Miaoyu Codonopsis pi-losula.The total content of hydrolyzed amino acid components in the aboveground part and the root part was(77.72±6.83)mg/g and(38.98±9.32)mg/g,respectively.The content of hydrolyzed amino acids in the aboveground part was signifi-cantly higher than that in the root part.Thirteen trace elements were detected in both the aboveground and root parts.The total content of trace elements in the aboveground part and the root part was(911.532±29.983)mg/kg and(992.366±24.994)mg/kg,respectively.The content of trace elements in the aboveground part of Miaoyu Codonopsis pilosula accoun-ted for 91.85%of that in the root part.Conclusion The aboveground part of Miaoyu Codonopsis pilosula contains a diverse range of amino acids and trace elements,with abundant content and high nutritional value,making it valuable for compre-hensive application and development.
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