Objective To evaluate the potential quality and safety risks of disposable bamboo and wooden chopsticks by detecting and analyzing hydrogen peroxide residues. Methods This study simulated the migration of hydrogen peroxide in disposable bamboo and wooden chopsticks under actual usage conditions. The migration amount of hydrogen peroxide in distilled water was measured using spectrophotometry, and its safety was evaluated through 4 steps: Hazard identification, hazard characteristic description, exposure assessment and risk characterization. Results The migration amount of hydrogen peroxide in disposable bamboo and wooden chopsticks was 40-110 mg/kg, and the dietary exposure risk factor for the general population (excluding infants and young children) was 3.3×103%-9.1×103%, far exceeding the international default safety threshold (20%). The residual hydrogen peroxide in disposable bamboo and wooden chopsticks might pose certain health risks to the human body. Conclusion The conclusion of the risk assessment indicates that the residual hydrogen peroxide in disposable bamboo and wooden chopsticks poses a significant exposure risk, and long-term use may pose safety hazards. It is urgent to include it in the key monitoring scope of food safety. It is recommended to strengthen production control, improve industry standards, strengthen market supervision, and enhance public awareness to ensure the health and safety of the public.
| 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 |