Establishment and evaluation of a UPLC-MS/MS method for simultaneous determination of bongkrekic acid and dehydroacetic acid in rice noodles.

Journal: Frontiers in chemistry
Published Date: Jan 28, 2025

Abstract

A UPLC-MS/MS method with one-step extraction and simultaneous determination of bongkrekic acid (BA) and dehydroacetic acid (DHA) in rice noodles has been established in this study for the first time. The extraction solvent consisted of a mixture of methanol, ammonia, and water. Electrospray ionization negative ion mode (ESI-) was used for multiple reaction detection and external standard method was used for quantitative determination. The method demonstrated a good linearity range of 0-50 ng/mL with a correlation coefficient (r) of 0.9998 for BA, and showed a linearity range of 0∼500 ng/mL with r of 0.9993 for DHA. The limits of detection (LOD) were determined to be 0.1 μg/kg for BA and 0.6 μg/kg for DHA. Additionally, the method exhibited good recovery of 90.1%∼105.4% for BA and 80.4%∼102% for DHA. Meanwhile, the method also exhibited good precision with RSD of 0.4%∼7.5% for BA, and with RSD of 4.5%∼11.4% for DHA. Furthermore, the established method was sucessfully applied to the analysis of rice noodles from two production enterprises. BA was detected in one rice noodle sample and DHA was detected in 7 rice noodle samples in the enterprises A which was the manufacturer of food consumed by the poisoned patient. To investigate the cause of death of the poisoned patient, the toxigenic bacterium was isolated and cultured to produce BA. The results showed that the established method could also be used to qualitatively screen BA and its isomer isobongkrekic acid (IBA) in GVC enrichment broth, potato glucose agar and rice sample, which facilitates a rapid and accurate judgement of whether the isolated bacterium strain produces BA. With high sensitivity and accuracy, and simple sample pretreatment, the proposed method shows potential for safety assessment of the entire production process of rice-derived products, addressing a significant public health concern.

Authors

  • Lingguo Zhao
    Department of Physical and Chemical Laboratory, Center for Disease Prevention and Control of Baoan District, Guangdong, Shenzhen, China.
  • Ronggui Lv
    Department of Critical care medicine, Shenzhen Hospital, Southern Medical University, Guangdong, Shenzhen, China.
  • Jiang Song
    Department of Critical care medicine, Shenzhen Hospital, Southern Medical University, Guangdong, Shenzhen, China.
  • Xi Chen
    Department of Critical care medicine, Shenzhen Hospital, Southern Medical University, Guangdong, Shenzhen, China.
  • Lei Lei
    Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
  • Weixian Zeng
    Department of Critical care medicine, Shenzhen Hospital, Southern Medical University, Guangdong, Shenzhen, China.
  • Miaowen She
    Department of Ultrasonography, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, China.
  • Dabing Li
    Accident and Emergency Department (AED), Kiangwu Hospital, MacaoSAR, China.
  • Xiaxia Yu
    School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, China.
  • Zhanguo Liu
    Department of Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
  • Xiao Wang
    Research Centre of Basic Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
  • Yong Liu
    Department of Critical care medicine, Shenzhen Hospital, Southern Medical University, Guangdong, Shenzhen, China.

Keywords

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