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Objective To compare the differences in the quality indicators for ediable and medicinal of different strains of Polygonatum kingianum, and conduct a comprehensive evaluation. Methods The rhizome of 3 strains of Polygonatum kingianum, including the strain of Polygonatum kingianum with white flower and green stem (PKW), the strain of Polygonatum kingianum with purple flower and green stem (PKP) and the strain of Polygonatum kingianum with red flower and purple stem (PKR), were used as experiments materials. The differences of the content of nutrient, mineral elements and the main active ingredients was analyzed, the study on comprehensive quality evaluation research was conducted based on the membership function and principal component analysis methods. Results There were significant differences in 19 quality indicators between different strains of Polygonatum kingianum. PKW had the highest content of crude protein, total starch, crude fat, Na, polysaccharides and total flavonoids, PKP had the highest content of 10 kinds of mineral elements (K, P, Ca, Mg, Al, Mn, Fe, Zn, B and Cu) and total phenols, PKR had the highest content of moisture and total saponins. Pearson correlation analysis indicated that active ingredients showed a significant correlation with mineral elements and nutrient (P<0.05 or P<0.01); however, there was no significant correlation between nutrient and mineral elements. The analysis results were obtained by using the membership function method suggested that the highest scores of food and medicinal values were PKP and PKW respectively. The principal component analysis of 19 quality indicators were carried out, and the cumulative contribution of the 3 principal components was 96.41%. The evaluation results showed that PKP had the highest comprehensive score. Conclusion The medicinal value of PKW is the highest. PKP has comprehensive high quality, is suitable for both ediable and medicinal.
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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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