Full
Outline
To understand the background value of aluminum in pickled Brassica juncea in the Huarong area.
Taking 8 townships in Huarong County as monitoring sites, a total of 180 samples of soil and fresh Brassica juncea were collected, 218 samples of pickled Brassica juncea finished products from pickled vegetable production enterprises in Huarong County, 30 samples of pickled Brassica juncea products from Huarong County on the market, and 40 samples each of bittern solutions, semi-finished products and finished products formed by different pickling processes were collected. In total, 548 samples were tested for the content of aluminum element.Soil samples were detected by HJ 1315—2023 Determination of total amount of 19 metal elements in soil and sediment-Inductively coupled plasma mass spectrometry; fresh Brassica juncea and their stems and leaves, pickled Brassica juncea samples, commercial pickled Brassica juncea products, and different processes of brine solution,semi-finished products and final products were detected by inductively coupled plasma mass spectrometry (ICP-MS),the first method of GB 5009.268—2016 National food safety standard-Determination of multi-elements in food.
The average value of aluminum element content in the soil of Huarong County was 67.82 g/kg, and the median value was 68.81 g/kg. The average value of aluminum element content in fresh Brassica juncea was 97.02 mg/kg,and the median value was 85.30 mg/kg. Moreover, it presented the changing rule that the aluminum element content in the leaves was greater than that in the whole plant, which in turn was greater than that in the stems. The average value of aluminum element content in pickled Brassica juncea in Huarong County was 34.74 mg/kg, and the median value was 32.29 mg/kg.
Eventually, 82.90 mg/kg is selected as the background reference value for aluminum element in pickled Brassica juncea. By comparing the aluminum content in pickled Brassica juncea produced through different pickling processes, it is recommended that enterprises adopt the methods of secondary pickling or clean pickling for production to control the residual amount of aluminum in finished products.
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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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