Based on the external morphology and internal quality, the quality grading standards of Baizhu (Atractylodis Macrocephalae Rhizoma) medicinal materials and decoction pieces were established.
The external morphology and internal quality of Baizhu (Atractylodis Macrocephalae Rhizoma) medicinal materials and decoction pieces were measured respectively, and the correlation between external morphology and internal quality indexes was analyzed. Then, the medicinal materials and decoction pieces of Baizhu (Atractylodis Macrocephalae Rhizoma) were graded based on the external morphology, and the internal quality of different grades of medicinal materials and decoction pieces was determined. Through statistical analysis, the quality grading standard of the unity of external form and internal quality was established.
The correlation analysis of the external morphology and internal quality of Baizhu (Atractylodis Macrocephalae Rhizoma) showed that the length and single weight were significantly positively correlated with the content of volatile oil, the total amount of atractylenolide and the content of atractylone (P<0.05). The grade of Baizhu (Atractylodis Macrocephalae Rhizoma) was divided by length and single weight. It was found that the volatile oil content of second-class and third-class products was significantly different from that of first-class products (P<0.01), and there was a significant difference in atractylon content among the three grades (P<0.05, P<0.01 or P<0.000 1). Therefore, the contents of volatile oil and atractylon was used as a quantitative index for the classification of medicinal materials. The correlation analysis of the external morphology and internal quality of Baizhu (Atractylodis Macrocephalae Rhizoma) showed that the length was positively correlated with the content of volatile oil, the total amount of atractylenolide and the content of atractylon. The grade of Baizhu (Atractylodis Macrocephalae Rhizoma) decoction pieces was divided by length index, and it was found that the contents of volatile oil and atractylon were statistically significant between the two grades (P<0.000 1). Therefore, the content of volatile oil and atractylon was used as a quantitative index for the classification of decoction pieces.
The length, single weight and total amount of atractylenolide in the internal quality index of the appearance shape index were used as the comprehensive evaluation index of the internal and external quality of Baizhu (Atractylodis Macrocephalae Rhizoma). The diameter in the appearance shape index and the total amount of atractylenolide in the internal quality index were used as the comprehensive evaluation index of the internal and external quality of Baizhu (Atractylodis Macrocephalae Rhizoma). Considering the actual situation of the market, the classification standard of Baizhu (Atractylodis Macrocephalae Rhizoma) commodity specifications was formulated.
| 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 |