Determination and safety evaluation of sulfur dioxide content in Polygonati Rhizoma from different regions

doi:10.14088/j.cnki.issn0439-8114.2022.09.024

Abstract

Abstract: In order to detect the sulfur dioxide content in Polygonati Rhizoma from different regions and evaluate its safety, the samples of Polygonati Rhizoma were distilled by Kjeldahl nitrogen analyzer, and iodine standard solution titration was carried out according to national standards. The results showed that 8 kinds of samples had sulfur dioxide residue, of which 4 exceeded the national limit standard （150 mg/kg）, and the detection rate was 7.5%. According to the GB 2760—2014 food additive use standard （50 mg/kg）, 7 kinds of samples exceeded the standard, and the detection rate was 13.2%.

Key words: Chinese herbal medicine, Polygonati Rhizoma, sulfur dioxide, Kjeldahl method for determination of nitrogen, safety evaluation

CLC Number:

R284.1
R285

JIANG Zhi-lin, ZHOU Yuan, XU Yu-sheng, SHEN Ke, WEI Ying, DONG Jing-Cheng. Determination and safety evaluation of sulfur dioxide content in Polygonati Rhizoma from different regions[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(9): 123-126.

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