Details

Autor(en) / Beteiligte

• Yuan, Xiaoyu
• Hu, Chang‐Ying
• Wang, Zhi‐Wei

Titel

The migration and degradation of N‐(1,3‐dimethylbutyl)‐N′‐phenyl‐p‐phenylenediamine from rubber hoses in milk lines

Ist Teil von

• International journal of dairy technology, 2023-05, Vol.76 (2), p.329-338

Ort / Verlag

Oxford: Blackwell Publishing Ltd

Erscheinungsjahr

2023

Quelle

Access via Wiley Online Library

Beschreibungen/Notizen

• N‐(1,3‐dimethylbutyl)‐N′‐phenyl‐p‐phenylenediamine (6PPD), an anti‐ageing agent in rubber hoses used in milk lines, may migrate into the milk and cause safety issues. Thus its migration and degradation in simulants/milk were studied to explore the changing trends and final levels, by high‐performance liquid chromatography. The results showed that 6PPD continuously increased in 95% ethanol and degraded more easily in simulants with a high water content. The degradation may be attributed to the π‐conjugated system of 6PPD and smaller steric hindrance of degradation products. No migration was observed into milk after 10 min. This study provides a novel and effective approach to evaluating 6PPD trends and safety for the dairy industry. 6PPD is non‐targeted screened from rubber milking machine hoses. Migration behaviour and degradation mechanism of 6PPD, co‐determining its final content into food simulants/milk, were explored under different working conditions.