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Objective To investigate the content of pesticide residues and exogenous heavy metal pollutants in 10 commonly used Chinese crude drugs (Morindae officinalis radix; Citri grandis exocarpium; Polygoni multiflori radix; Amomi Fructus; Pogostemonis Herba; Baphicacanthis Cusiae Rhizoma et Radix; Radix Kadsurae Coccineae; Bruceae Fructus; Arecae Semen; Alpiniae Oxyphyllae Fructus) from 200 batches from different regions in Lingnan, in order to provide a basis for quality control of southern medicine. Methods The content of the exogenous pollutants such as heavy metals, harmful elements, pesticides in 10 commonly used Chinese crude drugs was measured according to Pharmacopoeia of The People's Republic of China (2020 edition)(hereinafter referred to as Chinese Pharmacopoeia), in order to determine and analyze the measurement results. Result The pesticide residues and limits of lead, arsenic, cadmium, mercury, and copper in Polygoni multiflori radix, Baphicacanthis Cusiae Rhizoma et Radix, Radix Kadsurae Coccineae, Arecae Semen and Alpiniae Oxyphyllae Fructus all meet the requirement of the Chinese Pharmacopoeia. Morindae officinalis radix, Citri grandis exocarpium, and Amomi Fructus all have heavy metal non-compliance, while Pogostemonis Herba has pesticide residue non-compliance. Conclusion For the studied varieties, pesticide residue control is good, and it is necessary to focus on monitoring lead and mercury elements.
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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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