manufacturer kenya antioxidant ippd chemical raw materials
manufacturer kenya antioxidant ippd chemical raw materials
manufacturer kenya antioxidant ippd chemical raw materials
manufacturer kenya antioxidant ippd chemical raw materials
manufacturer kenya antioxidant ippd chemical raw materials
  • Are 6PPD and IPPD a contaminant?
  • 6PPD and IPPD were detected in white shrimp samples collected from aquafarms. Given the high toxicity of N- (1,3-dimethylbutyl)-N’-phenyl- p -phenylenediamine (6PPD) derivatives, such as 6PPD quinone (6PPDQ) to salmon, as well as their ubiquitous presence in the environment, the contaminant of aquatic food products has drawn significant attention.
  • Are PPDS harmful to the environment?
  • The widespread use of PPDs, especially in tires, resulted in the frequent contamination of environmental system by PPDs and their TPs. For instance, the concentrations of 6PPDQ, ∑PPDs, and ∑PPDQs in the air are reported to be 0.1–110, 3.48–13200, and 3.61–8480 pg/m 3, respectively , .
  • Are white shrimp tested positive for 6PPD & IPPD?
  • As detailed in Table S12, only white shrimp from aquafarms tested positive for 6PPDs (0.0600–1.59 μg/kg) and IPPDs (0.200 and 0.380 μg/kg), having detection rates of 33.3% for 6PPD and 16.7% for IPPD. The MS peaks of the positive samples are shown in Fig. 5. The other samples either contained no target compounds or contained levels below the MDL.