不锈钢刀具在模拟食物接触中的金属释放。

Metals release from stainless steel knives in simulated food contact.

机构信息

Department of Mechanical Engineering, Politecnico di Milano, Milano, Italy.

INSTM & Chemistry for Technologies Laboratory, Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, Italy.

出版信息

Food Addit Contam Part B Surveill. 2022 Sep;15(3):203-211. doi: 10.1080/19393210.2022.2075473. Epub 2022 Jun 6.

DOI:10.1080/19393210.2022.2075473

PMID:35666702

Abstract

The release of chromium, nickel, and manganese from knives stainless steel produced in Italy and People's Republic of China was investigated with the aim to check their quality and compliance with Italian Ministerial Decree 21.03.73, which is the most detailed text for the hygiene regulation of packaging, containers, and tools intended for food contact. Temperature effect on metal release is investigated in 18 sets of knives. Tests are performed by simulating discontinuous contact using a 3% glacial acetic acid solution in distilled water at 50°C and 100°C. Chromium, nickel, and manganese quantification is performed by total reflection X-Ray fluorescence. Chemical composition highlights low sulphur content, and most of them belong to the American Iron and Steel Institute (AISI) 420 type A stainless steel group. Tests performed at 100°C revealed higher concentration of released metals. Only three knives tested at 100°C exceed the limit of 100 µg L.

摘要

研究了产自意大利和中华人民共和国的不锈钢刀具中铬、镍和锰的释放情况，目的是检查其质量是否符合意大利部长令 21.03.73 的要求，该法令是针对与食品接触的包装、容器和工具卫生法规的最详细文本。研究了温度对金属释放的影响，共测试了 18 套刀具。通过在 50°C 和 100°C 下使用 3%的冰醋酸在蒸馏水中进行不连续接触模拟来进行测试。通过全反射 X 射线荧光法对铬、镍和锰进行定量分析。化学成分显示硫含量低，其中大部分属于美国钢铁协会（AISI）420 型 A 不锈钢组。在 100°C 下进行的测试显示出更高浓度的释放金属。只有 3 把在 100°C 下测试的刀具超过了 100µg/L 的限量。