Figure 1.
Chemical structures of polyphyllin I, II, VI and VII.
Figure 2.
The wild Paris collected from main geographical origins in China.
1: Central Yunnan (16#, 18#, 19#, 21#, 26#, 32#, 33#, 37#, 43#); 2: Northwestern Yunnan (9#, 10#, 11#, 12#, 17#, 24#, 28#, 36#, 38#, 39#, 46#); 3: Southwestern Yunnan (22#, 25#, 27#, 30#, 35#, 40#, 41#, 44#, 47#, 48#); 4: Southeastern Yunnan (1#, 3#, 4#, 13#, 20#, 23#, 29#, 31#, 34#, 42#); 5: Guizhou (2#, 6#, 7#, 8#); 6: Guangxi (5#, 14#, 15#, 45#).
Table 1.
Sample species and locations.
Figure 3.
Stability control chart of NIRS of Paris.
Figure 4.
The original (A) and second derivative (B) NIR spectra of Paris.
Table 2.
Contents of detected components in Paris (dry weight, mg·g−1).
Figure 5.
PLS model of Paris from Yunnan, Guizhou and Guangxi Provinces (A) and different geographical origins from Yunnan Provinces (B).
Figure 6.
The average contents of polyphyllin I, II, VII and total steroid saponins in Paris from different geographical regions: (1) Central Yunnan; (2) Northwestern Yunnan; (3) Southwestern Yunnan; (4) Southeastern Yunnan; (5) Guizhou; (6) Guangxi.
Figure 7.
PLS model of different species of Paris.
Figure 8.
Loading Bi-plot of PLS-DA model.
(A) P. polyphylla var. yunnanensis from different geographical origins. (1) Central Yunnan; (2) Northwestern Yunnan; (3) Southwestern Yunnan; (4) Southeastern Yunnan. (B) Different species of Paris from Southeastern Yunnan. (1) P. caobangensis; (2) P. cronquistii; (3) P. cronquistii var. xichouensis; (4) P. polyphylla var. chinensis; (5) P. polyphylla var. yunnanensis.
Table 3.
The total score of P. polyphylla var. yunnanensis from four different geographical areas (central, northwestern, southwestern and southeastern) in Yunnan Province.
Table 4.
The total score of 5 different species of Paris from southeastern Yunnan.