Characteristic analysis of microplastics in food seasonings
In order to explore the characteristics of microplastics in food seasonings,the abundance,size,shape,and material of microplastics in 34 seasonings processed from different regions and raw materials were investigated.The results showed that the average abundance of microplastics in the tested seasoning samples was 1.75 per 100 g.The particle size of microplastics in the seasoning samples was all less than 5 mm.Fibrous microplastics accounted for a large proportion of microplastics,followed by thin film microplastics and granular microplastics,accounting for 56%,35%,and 9%,respectively.The materials of microplastics in seasonings were artificial fibers,polyethylene,polypropylene,polyester fibers,and olefin fibers.Research provided a reference for improving the quality of food seasonings and ensuring food safety.