Characterization of quinolone residues in leafy vegetables from growing areas around chicken farms

doi:10.16178/j.issn.0528-9017.20231175

Abstract

Abstract:

In this study, the content of quinolones in leafy vegetables from four chicken farms around Hangzhou City was analyzed by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The results clarified that the detection rates of enrofloxacin (ENR), ciprofloxacin (CIP), norfloxacin (NOR) and lomefloxacin (LOM) in different varieties of leafy vegetables ranged from 41% to 100%, and the total content of quinolones(Σ QNs) ranged from 0.89-95.74 μg·kg^-1, of which 10.00-50.00 μg·kg^-1accounted for 50.06%, and the proportions below 10.00 μg·kg^-1and above 50.00 μg·kg^-1 were 41.47% and 8.47% respectively, with an average of 11.83 μg·kg^-1.The average of quinolone residues in different varieties was:Chinese cabbage>leafy lettuce>lettuce>spinach. The detection rate of NOR in leafy vegetables was as high as 100%, and its maximum and average values were 70.31 and 9.44 μg·kg^-1, respectively, which were much higher than the other three drugs. Although the content of QNs in leafy vegetables is not high, the long-term low-dose intake of antibiotics is easy to induce bacterial resistance, so the environmental impact of the irrational use of antimicrobials should not be ignored.

Key words: leafy vegetables, quinolones, antibiotics, residues

CLC Number:

S636
S481

LIU Aichun, ZHA Yan, BAI Junhui, HE Xin, LIU Chao. Characterization of quinolone residues in leafy vegetables from growing areas around chicken farms[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(3): 719-723.

Figures/Tables 4

Fig.1 Characterization of the distribution of total content of quinolones in leafy vegetables

Table 1 Distribution characteristics of content of quinolone in leafy vegetables in growing areas from chicken farms around Hangzhou City

化合物	检出率/ %	最大值/ (μg·kg^-1)	最小值/ (μg·kg^-1)	平均值/ (μg·kg^-1)	标准偏差/%
NOR	100	70.31	0.17	9.44	10.93
CIP	74	10.46	0.12	1.78	1.84
LOM	41	29.62	ND	0.38	2.46
ENR	100	0.35	0.21	0.29	0.25
∑ QNs	100	95.74	0.89	11.83	13.26

Fig.2 Distribution characteristics of content of quinolones in leafy vegetables

Fig.3 Characteristics of the total content of quinolones in different species of leafy vegetables

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