RESUMEN
We performed an extensively targeting metabolomic detecting using ultra-performance liquid chromatography-mass spectrometry (UPLC-MS/MS) to compare the secondary metabolites in Dang shen [Codonopsis pilosula (Franch.) Nannf.] from Shanxi and Gansu provinces. The findings showed that 161 secondary metabolites in 6 groups (phenolic acids, flavonoids, lignans and coumarins, alkaloids, terpenoids, others) were found from Dang shen in Changzhi city of Shanxi province and Dingxi city of Gansu province. There were 98 secondary metabolites which is differed significantly. In comparison to Dingxi city, 33 different secondary metabolites of Dang shen in Changzhi city had a greater relative content, whereas relative content of 65 different metabolites in Dingxi city was higher. Metabolic pathway enrichment analysis revealed that phenolic acids and flavonoids were significantly different in the secondary metabolites of Dang shen from different producing places. This may be one of the reasons for the difference in the quality of Dang shen in Shanxi and Gansu provinces. This work compared and analyzed the secondary metabolites of Dang shen from Dingxi city in Gansu province and Changzhi city in Shanxi province for the first time, which lays the foundation for further study on the quality of Dang shen.
RESUMEN
<p><b>OBJECTIVE</b>To investigate the effect of five kinds of fertilizers at three application levels on the content of 2-undecanone and carbohydrate in Houttuynia cordata.</p><p><b>METHOD</b>A single factor randomized block design was used to investigate the content of 2-undecanone and carbohydrate in the plant.</p><p><b>RESULT</b>The results showed that the content of 2-undecanone was the highest both in aerial and underground parts of H. cordata, which was fertilized with complex fertilizers served in conventional way, having the content 18.6 microg g(-1) and 26.0 microg g(-1) respectively. In addition, 2-undecanone contents in aerial parts of H. cordata (14.9 microg g(-1)) fertilized with manure of human were also higher than that with chemical fertilizer, pig and duck manures, but no significant difference were found among the other treatments in aerial or underground parts of the plants, respectively. The results also demonstrated that fertilized with organic fertilizer might be beneficial to enhance the quality of sugar in H. cordata, mainly including the contents of total sugar, solutable sugar, fructose and reduced sugar in the plants, especially with manure of human and pig.</p><p><b>CONCLUSION</b>As the result of this study and the related previous research on yield of H. cordata were considered, the fertilizing ways for increasing quality of H. cordata should take the manure of human as a main fertilizer and mix with the other organic fertilizers, complex fertilizers and chemical ones may be needed to balance the plant nutrient. In the field practice, the amount of organic fertilizer including 108,000 kg hm(-2) human mature, together with some high-efficient complex fertilizer and a small amount of quick-acting chemical fertilizer is recommended.</p>