Distribution of mineral elements characteristics and dietary risk assessment in solanaceous vegetables
To investigate the mineral element content characteristics and food safety of solanaceous vegetables sold in Guangxi,inductively coupled plasma mass spectrometry(ICP-MS)was used to determine the content of 7 mineral ele-ments(Fe,Mn,Zn,Cu,Mo,Co,Ni)and 5 common harmful heavy metals(Pb,Cd,As,Hg,Cr)in 150 samples of solana-ceous vegetables,and principal component analysis and health risk assessment were conducted. The results showed that the average content of seven mineral elements in solanaceous vegetables was ranked as follows:Fe>Mn>Zn>Cu>Ni>Mo>Co,with a coefficient of variation ranging from 44.7％(Fe)to 247.8％(Ni). There are significant difference in the mineral element content of different solanaceous vegetables samples. The content of six mineral elements(Fe,Zn,Ni,Mn,Cu,Co)in chilli pepper is the highest. The results of principal component analysis showed that Fe,Mn,Zn,Cu,Co and Ni are characteristic inorganic elements of solanaceous vegetables sold in Guangxi. Two principal components were extracted,with a cumulative variance contribution rate of 99.983％. The comprehensive score ranking of mineral elements in solana-ceous vegetables is:chili pepper>tomato>eggplant. It indicated that the content of beneficial mineral elements in chili pepper is relatively high. The average content of five heavy metals in solanaceous vegetables did not exceed the national standard limit,but there were cases of Cd exceeding the standard,with an overall exceeding rate of 10.0％. Among them,the exceeding rates of chilli pepper,tomato,and eggplant were 10.4％,10.3％,and 8.0％,respectively. The ranking of the target hazard quotient(THQ)and total target hazard quotient(TTHQ)of the five heavy metals for different populations are far less than 1. Overall,the dietary health risks of children or adults consuming solanaceous vegetables sold in Guangxi are relatively low and at a safe level. But Cd is a heavy metal pollution factor that needs to be closely monitored in solana-ceous vegetable in the future.
万方数据
维普
