Full
Outline
To determine the optimal harvest time of cultivated Baiqian (Cynanchum stauntonii) based on the correlation of trait information and chemical composition so as to provide a reference for the rational harvest and quality control of Baiqian (Cynanchum stauntonii).
The appearance traits such as the diameter, the area ratio of each part of the transverse section, and the powder color of wheat were quantified. The contents of water-soluble extract, alcohol-soluble extract, total saponins and six index components (p-hydroxybenzoic, vanillic acid, syringic acid, 4-hydroxyacetophenone, 2,4-dihydroxyacetophenone, Anhydrohirundigenin 3-O-α-L-diginopyranosyl-(1→4)-β-D-cymaropyranosyl-(1→4)-β-D-digitoxopyranosyl-(1→4)-β-D-thevetopyranoside) were determined. Pearson correlation analysis was used to analyze the relationship between appearance traits and internal component content of Baiqian (Cynanchum stauntonii). The comprehensive score of the sample was calculated by the entropy weight method.
There were significant differences in appearance traits and internal components of Baiqian (Cynanchum stauntonii) with different cultivation years. The results of correlation analysis showed that the appearance traits were significantly correlated with the contents of internal components (alcohol-soluble extract, total saponins, p-hydroxybenzoic, vanillic acid and syringic acid) of Baiqian (Cynanchum stauntonii) with different cultivation years. The results of entropy weight method showed that the comprehensive scores of biennial and triennial Baiqian (Cynanchum stauntonii) were generally higher than those of annual Baiqian (Cynanchum stauntonii).
The appearance traits of Baiqian (Cynanchum stauntonii) can reflect the contents of internal components to a certain extent. Through the analysis of entropy weight method, considering the factors such as production cost and land turnover time, it is concluded that the harvest of Baiqian (Cynanchum stauntonii) in the second year is more reasonable, which can provide reference for the quality control and scientific harvest of Baiqian (Cynanchum stauntonii).
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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