Skip to main content
. 2019 Jul 31;9:11118. doi: 10.1038/s41598-019-47250-0

Table 4.

Concentrations of pesticide residues in investigated milk thistle preparations.

Sample No. Sampling year Sample code
(country of origin, brand-batch No)
Pesticide concentrations (µg/kg)
Pirimiphos-methyl Malathion Chlorpyrifos Carbendazim Piperonyl butoxide
1 2016 USA 1-I <1 <2.5 <1 <2.5 <10
2 2017 USA 1-II <1 <2.5 <1 24.0a <10
3 2016 USA 2 <1 <2.5 <1 <2.5 <10
4 2016 USA 3-I <1 <2.5 <1 <2.5 <10
5 2017 USA 3-II <1 <2.5 <1 <2.5 <10
6 2016 USA 4-I <1 <2.5 <1 <2.5 35a
7 2017 USA 4-II <1 <2.5 <1 12.6a <10
8 2017 USA 4-III <1 <2.5 <1 29.0a <10
9 2017 USA 4-IV <1 <2.5 <1 <2.5 <10
10 2016 USA 5-I <1 <2.5 <1 <2.5 <10
11 2017 USA 5-II <1 <2.5 <1 16.8a <10
12 2017 USA 5-III <1 <2.5 <1 <2.5 <10
13 2016 USA 6-I <1 27.5a,b 38.2a 118a,b <10
14 2017 USA 6-II <1 <2.5 <1 <2.5 <10
15 2017 USA 6-III <1 <2.5 <1 <2.5 <10
16 2017 USA 6-IV <1 <2.5 <1 16.2a <10
17 2017 USA 7-I <1 <2.5 <1 <2.5 <10
18 2017 USA 7-II <1 <2.5 <1 <2.5 <10
19 2017 USA 8 <1 <2.5 <1 <2.5 <10
20 2016 CZ 1 14.1a <2.5 <1 <2.5 <10
21 2016 CZ 2 28.9a,b <2.5 <1 <2.5 <10
22 2016 CZ 3 6.7a <2.5 <1 <2.5 <10
23 2016 CZ 4 <1 <2.5 <1 <2.5 <10
24 2016 CZ 5 <1 <2.5 <1 <2.5 <10
25 2016 CZ 6 <1 <2.5 <1 <2.5 <10
26 2016 CZ 7 <1 <2.5 <1 <2.5 <10

aConcentration of pesticide exceeded the MRL value for babies and infants.

bConcentration of pesticide exceeded the MRL value for herbs and edible flowers.