Comparison of nutritional organs medicinal components of Alpinia katsumadae Hayata under two planting models
Using Alpinia katsumadae Hayata from Eucalyptus forest intercropping and Alpinia katsumadae Hayata from natural growth as research objects,the total flavonoid,polysaccharide,total phenolic,total saponin content and drying rate of Alpinia katsumadae Hayata nutritional organs(roots,stems,leaves)were determined.The results showed that the whole plant drying rate of Alpinia kat-sumadae Hayata with natural growth was 1.11 times that of Eucalyptus forest intercropping;the total flavonoid content of Alpinia kat-sumadae Hayata was 10.27~32.13 mg/g,among which Eucalyptus forest intercropping had the highest total flavonoid content in the leaves of Alpinia katsumadae Hayata,reaching 32.13 mg/g;the polysaccharide content of Alpinia katsumadae Hayata was 21.50~37.28 mg/g.Under natural growth conditions,the total polysaccharide content of Alpinia katsumadae Hayata was 1.15 times that of Eucalyp-tus forest intercropping;the total phenolic content of Alpinia katsumadae Hayata under the condition of Eucalyptus forest intercropping was 2.10 times that of Alpinia katsumadae Hayata under the condition of natural growth;the total saponin content of Alpinia katsuma-dae Hayata under the condition of Eucalyptus forest intercropping was 1.25 times that of Alpinia katsumadae Hayata under the condi-tion of natural growth;according to principal component analysis,under the condition of Eucalyptus forest intercropping,the compre-hensive score and ranking of the nutritional organs of Alpinia Katsumadae Hayata were higher than those of natural growth.In summa-ry,the medicinal component content of the nutritional organs of Alpinia katsumadae Hayata was at a high level under both planting modes,and the Eucalyptus forest intercropping condition was more conducive to the accumulation of effective ingredients of Alpinia katsumadae Hayata.