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Volume 5, Issue 2 (Suppl) J Fisheries Livest Prod
ISSN: 2332-2608 JFLP, an open access journal Aquaculture Summit 2017
May 25-26, 2017
May 25-26, 2017 Osaka, Japan
6th Global Summit on
Aquaculture and Fisheries 2017
The mechanism study of migration, transformation and selective removal of Pyrethroid residues in
aquaculture ecosystem
Xizhi Shi
Ningbo University, China
Statement of the Problem: Pyrethroids are usually applied to control insects and weeds in agriculture and fishery. The serious
influence of these compounds on the aquaculture and breeding usually occurs at low residue level because of their endocrine-
disrupting properties. Therefore, determining the pollution condition and removal of pyrethroids with endocrine-disrupting
properties in aquaculture ecosystem is important to protect the aquaculture ecosystem and eliminate the hazards of pyrethroids
to aquaculture and breeding. Methodology & Theoretical Orientation: In this study, the pollution condition, migration, and
transformation of pyrethroids were elucidated by simulating a natural tidal flat ecology. Furthermore, the novel molecularly imprinted
nanostructured polymers (MIPs) were fabricated by surface grafting technique and used as carrier of pyrethroid-degrading bacteria.
Findings: The novel MIPs were developed and successfully used as carrier of pyrethroid-degrading bacteria, which can improve the
degrading efficiency of specific trace pyrethroid. Furthermore, the degradation efficiency was investigated according to the migration
and transformation characteristics of pyrethroid influenced by the immobilized bacteria onto the fabricated MIPs. Conclusion &
Significance: The results obtained in this study could provide the theoretical and technological support to eliminate the hazards of
pyrethroids with endocrine-disrupting compounds in aquaculture ecosystem and aquatic products.
Biography
Shi Xizhi developed the extraction technique based on the molecularly imprinted polymer and molecularly imprinted membrane with high selectivity to pyrethroids
with endocrine-disrupting properties, and obtained reliable analytical method based on GC-MS/MS for multi-residue determination of them in aquatic products and
aquaculture environment. Meanwhile, the impact of their residues on the aquatic biology and environment is likely to become more apparent. Therefore, they isolated
the degradation bacteria, and developed immobilization technique based on molecularly imprinted polymer, which successfully applied to the bioremediation of
trace pyrethroids residue in aquaculture environments.
Xizhi Shi, J Fisheries Livest Prod 2017, 5:2 (Suppl)