温州杨梅金属元素质量安全分析与综合评价

Metals elements quality safety analysis and comprehensive evaluation of Morella ruba Lour. in Wenzhou

中文关键词:  温州  杨梅  重金属  质量安全  主成分分析  综合评价

英文关键词:Wenzhou  Morella ruba Lour.  metals elements  quality safety  principal component analysis  comprehensive evaluation

中文摘要:

      目的 评估温州市不同产地杨梅中金属元素含量水平并构建综合评价体系。方法 以温州市121份杨梅果实和68份杨梅种植处土壤为研究对象, 对土壤中pH及土壤和果实中铬、镍、砷、镉、汞、铅6种金属元素指标进行测定和分析; 并建立果实-土壤关联模型(54组样本的13项指标相关性及主成分分析)。结果 杨梅果实样品合格率为94.21%, 而土壤样品合格率仅为39.71%; 杨梅果实与土壤中金属元素含量存在不同程度的相关性, 其中杨梅果实中汞与土壤中铬、镍存在强的正相关性; 主成分分析筛选出土壤中铬、镉以及杨梅果实中镍、铅和砷含量是杨梅金属元素质量安全评价的核心指标。结论 本研究建立了杨梅金属元素质量安全综合评价体系, 为区域农产品安全监管提供方法学参考。

英文摘要:

      Objective To evaluate the levels of metal elements contamination in Morella ruba Lour. from different production areas in Wenzhou and establish a comprehensive evaluation system. Methods The 121 Morella ruba Lour. samples and 68 soil samples from Morella ruba Lour. planting sites in Wenzhou were studied. The pH of the soil and 6 kinds of metal elements indicators, including chromium, nickel, arsenic, cadmium, mercury and lead, in both the soil and fruits were measured and analyzed. A fruit-soil correlation model (incorporating correlation analysis and principal component analysis of 13 parameters across 54 samples) was established. Results The qualification rate of Morella ruba Lour. samples was 94.21%, while the qualification rate of soil samples was only 39.71%; there was a varying degree of correlation between the metal elements content in Morella ruba Lour. fruits and soil, with a strong positive correlation between mercury in Morella ruba Lour. fruits and chromium and nickel in soil; principal component analysis identified chromium and cadmium in soil, as well as nickel, lead and arsenic in Morella ruba Lour., as the core indicators for evaluating the metal elements quality and safety of Morella ruba Lour.. Conclusion This study established a comprehensive evaluation system for metal elements quality safety in Morella ruba Lour., providing methodological references for regional agricultural product safety regulation.