大黄鱼背腹部肌肉6种重金属检测及食用安全评价

Detection and edible safety evaluation of 6 kinds of heavy metals in dorsal and abdominal muscles of Larimichthys crocea

中文关键词:  大黄鱼  重金属  健康风险评估  数据评价

英文关键词:Larimichthys crocea  heavy metal  health risk assessment  data evaluation

中文摘要:

      目的 分析野生大黄鱼与养殖大黄鱼背部、腹部中的铜(Cu)、锌(Zn)、汞(Hg)、铅(Pb)、镉(Cd)和砷(As)金属元素的含量分布特征, 并进行食用健康风险评估。方法 采集野生大黄鱼[体长(35.16±4.62) cm, 体重(510.68±33.74) g]和养殖大黄鱼[体长(32.90±1.11) cm, 体重(454.19±20.03) g]的背部、腹部肌肉, 采用电感耦合等离子体质谱法和原子荧光光谱法测定6种重金属的含量, 采用污染指数法和健康风险评价进行分析。结果 野生大黄鱼与养殖大黄鱼背腹部中Hg、As、Cu、Zn的平均含量依次为0.128、0.032、4.179、5.526 mg/kg和0.023、0.195、4.106、5.389 mg/kg, Pb、Cd均未检出。单项重金属污染指数表明, 两种大黄鱼背部、腹部Cu、Zn、Pb、Cd和养殖大黄鱼背部、腹部Hg均为无污染水平; 野生大黄鱼腹部Hg和As存在轻度污染, 野生大黄鱼背部Hg存在轻度污染; 养殖大黄鱼背部、腹部As存在重度污染。野生大黄鱼肌肉中6种重金属综合污染指数值小于1, 无污染; 养殖大黄鱼肌肉中6种重金属综合污染指数值在1.0

英文摘要:

      Objective To analyze the content characteristics of copper (Cu), zinc (Zn), mercury (Hg), lead (Pb), cadmium (Cd) and arsenic (As) in the dorsal and abdominal muscles of wild and farmed Larimichthys crocea, and carry out the food health threat and risk assessment. Methods The content of 6 kinds of heavy metals were determined by inductively coupled plasma mass spectrometry and atomic fluorescence spectrometry in the dorsal and abdominal parts of wild [(35.16±4.62) cm in length and (510.68±33.74) g in weight] and farmed [(32.90±1.11) cm in length and (454.19±20.03) g in weight] Larimichthys crocea. The pollution index method and health risk assessment were used for analysis. Results The average content of Hg, As, Cu and Zn in the dorsal and abdominal of wild and farmed Larimichthys crocea were 0.128, 0.032, 4.179 and 5.526 mg/kg, and 0.023, 0.195, 4.106 and 5.389 mg/kg, respectively. Pb and Cd were not detected. Based on the single heavy metal pollution index, Cu, Zn, Pb, Cd in the dorsal and abdominal of wild and farmed Larimichthys crocea and Hg in the dorsal and abdominal of farmed Larimichthys crocea were pollution-free levels. There was slight pollution of Hg and As in the abdomen part of wild Larimichthys crocea, and mild pollution of Hg in the dorsal of wild Larimichthys crocea. Serious pollution level of As was found in the dorsal and abdominal of the farmed Larimichthys crocea. The comprehensive pollution index value of 6 kinds of heavy metals in the muscle of wild Larimichthys crocea was less than 1, which were pollution-free. And comprehensive pollution index value in the muscle tissue of farmed Larimichthys crocea was between 1.0