To analyze the contents and their migration behavior to beverages, 3-chloro-1, 2-propanediol (3-MCPD) and 1, 3-dichloro-2-propanol (1,3-DCP) in commercially available paper straws were extracted by cold-water, enriched and derivatized by ultrasound-assisted dispersive liquid-liquid micro-extraction method (UA-DLLME).Then they were detected by gas chromatography-mass spectrometry (GC-MS). The results showed thatamong the 20 kinds of analyzed commercialized paper straws, the positive rate of 3-MCPD was 65%, and its content ranged from 79.0 to 2 289.6 ng/g.While the positive rate of 1,3-DCP was 70%, and its content ranged from 5.3 to 104.9 ng/g. The migration amount of chloropropanol from paper straws to beverages increasedwith the extension of time and the rise of temperature.At room temperature and 30 min, the detection rate of 3-MCPD migration was 16.7%, and the migration amount ranged from 7.8 to 60.5 ng/mL.For the detection rate of 1,3-DCP migration which was 13.3%, and the migration amount ranged from 2.9 to 8.4 ng/mL. These results could provide a reference for further systematic evaluation of the potential risk of chloropropanol in paper straws.
HE Jiang
,
SHAO Suqin
,
DENG Aihua
,
YANG Qifu
,
XU Wensi
. The determination of chloropropanols in paper straws and its migration to beverages[J]. Food and Fermentation Industries, 2022
, 48(14)
: 132
-137
.
DOI: 10.13995/j.cnki.11-1802/ts.031267
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