Occurrence and distribution of bisphenol compounds in different categories of animal feeds used in China

• Main Authors: Ruiguo Wang, Tianjiao Tan, Haijun Liang, Yuan Huang, Shujun Dong, Peilong Wang, Xiaoou Su
• Format: Article
• Language: English
• Published: KeAi Communications Co., Ltd. 2021-01-01
• Series: Emerging Contaminants
• Subjects: Bisphenol; Feed; Occurrence; Risk; UPLC-MS/MS
• Online Access: http://www.sciencedirect.com/science/article/pii/S2405665021000135

Bisphenol compounds (BPs) are of concern worldwide as potential environmental contaminants, and these chemicals may migrate into animal-derived foodstuffs from animal feeds. In this study, 12 BPs were analyzed in 7 varieties of animal feed groups totaling 203 samples collected from various provinces in China. 6 BPs were found in these feed samples, with a total detection frequency of 75.5%. The total concentration of all BPs (Σ6BPs) in each type of feed ranged from below the limit of detection to 75.3 ng g−1, with an overall mean value of 4.52 ng g−1. The frequency of BPs contamination and the Σ6BPs values were found to be higher in animal-based feeds (Pfrequency > 0.05, Pconcentration < 0.01) than in plant-based feeds. BPA and BPS were the predominant BPs in these feed samples, accounting for (on average) 63.9% and 24.6% of the total BPs, respectively. Overall, the mean concentrations of BPA in these animal feeds were much lower than the legal limits set by China and European Union, implying a low direct risk to both animal health and animal-derived food safety. However, the evident risk of the contamination of various animal-derived food items with BPs passed through the feed chain merits further investigation.