摘要 提出一种基于最优最劣和熵值法的肉制品中重金属污染综合评价模型,该方法首先从毒性、含量2个方面构建评价体系,然后用最优最劣法评价各类肉制品的重金属污染程度,用熵值法对各地区肉制品中重金属污染程度进行综合评价。以某省5个城市4类肉制品重金属检测数据为例进行案例研究,对4类肉制品重金属污染程度排序发现,按内梅罗指数法和超标率两种评价方法计算的结果分别为熟肉干制品>腌腊肉制品>酱卤肉制品>熏煮香肠火腿制品和腌腊肉制品>酱卤肉制品>熟肉干制品>熏煮香肠火腿制品;而用文中综合评价方法计算的结果为酱卤肉制品>腌腊肉制品>熟肉干制品>熏煮香肠火腿制品。对5市肉制品重金属污染程度进行排序发现,按内梅罗指数法和超标率两种评价方法进行计算的结果均为A市>C市>B市>E市>D市,与文中方法的排序结果一致。对比方法和文中综合评价方法排序结果既有联系又有差异,造成差异的原因是对比方法考虑因素单一,而文中所提模型能较全面客观反映重金属污染情况,并可以有效突出不同地区重金属污染程度的差距。 In order to evaluate the degree of heavy metal(Cd,Cr,Pb,As)pollution in different meat products and different regions comprehensively and quantitatively,a comprehensive evaluation method of heavy metal pollution in meat products based on the best-worst method(BWM)-entropy(E)model was proposed.Firstly,Building a comprehensive evaluation index system based on heavy metal toxicity and content.Then,the best-worst method was applied to evaluate the degree of heavy metal pollution in various meat products.Finally,the entropy method was used to comprehensively evaluate the degree of heavy metal pollution in different regions.The case study used in this study was from the results of heavy metal detection results on four meat products in five cities of a province.For the degree of heavy metal pollution in the different meats products,the ranking of results from higher to lower by two methods,the Nemero index method and over-standard rate,were dried cooked meat products>cured meat products>sauced meat products>smoked and boiled sausage and ham products,and cured meat products>sauced meat products>dried cooked meat products>dried cooked meat products,respectively.However,the ranking of results from higher to lower by the comprehensive evaluation value proposed by this study was sauced meat products>cured meat products>dried cooked meat products>dried cooked meat products.For the degree of heavy metal pollution over different regions,the ranking of results from higher to lower by two methods,the Nemero index method and over-standard rate,were city A>city C>city B>city E>city D,and the ranking of result is consistent with that of the method of this study.Comparing above ranking results by the two methods,and the comprehensive evaluation method of this paper,the same and different aspects were found.The reason for the discrepancy was that the comparison methods had limitations in terms of the completeness of evaluation.Our evaluation model in this study can evaluate the degree of heavy metal pollution more comprehensively and
出处 《食品与机械》 北大核心 2021年第4期80-86,共7页 Food and Machinery
基金 国家重点研发计划(编号:2018YFC1603602) 国家自然科学基金(编号:61972010)。
关键词 综合评价方法 重金属污染 肉制品 最优最劣法 熵值法 comprehensive evaluation method heavy metal pollution meat products best-worst method entropy method
