This result shows that the sulfur residue in the form of SO2 exceed 58.02 times than recommended by the World Health Organization is 40 mg/1 kg, or 4.10-3% (40 ppm) [1].The conclusionHave identified dioxyd sulfur residues exist in the North dried licorice residue has a sale on the Thanh Hoa city in 2015 is 0.2321%. Excess sulfur residue 58.02 times than recommended by the World Health Organization (WHO) is 40 mg/1 kg, or 4.10-3% (40 ppm) [1].
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