Variation profile of diarrhetic shellfish toxins and diol esters derivatives of Prorocentrum lima during growth by high-resolution mass spectrometry
文献类型： 外文期刊
作者： Zhang, Haoyu 1 ; Wu, Haiyan 1 ; Zheng, Guanchao 1 ; Zhong, Yun 1 ; Tan, Zhijun 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Testing & Evaluat Aquat Prod Safety & Qual, Minist Agr & Rural Affairs, Qingdao 266071, Peoples R China
2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, State Key Lab Mariculture Biobreeding & Sustainabl, Qingdao 266071, Peoples R China
关键词： Okadaic acid; Dinophysistoxin-1; Toxin profile; Diol esters; Variation
期刊名称：TOXICON （ 影响因子：2.8； 五年影响因子：2.8 ）
ISSN： 0041-0101
年卷期： 2023 年 232 卷
页码：
收录情况： SCI
摘要： Prorocentrum lima is a widely distributed toxigenic benthic dinoflagellate whose production of diarrhetic shellfish toxins threatens the shellfish industry and seafood safety. Current research primarily assesses the difference between free and post-hydrolysis total toxin methods, ignoring the impact of different detection methods on technical accuracy. After removing matrix interference with SPE extraction, a thorough HRMS strategy was created in this study. Alkaline hydrolysis could release the diol esters and played a crucial role in obtaining an accurate assessment of toxin levels, achieving satisfactory recoveries (74.0-147.0%) and repeatability (relative deviation <12.3%). The HRMS approach evaluated toxin profile variation during the growth of three P. lima strains from China. A total of 24 toxin contents varying in composition, content, and a high proportion were detected. The SHG, HN, and 3XS strains had total toxin contents of 23.3 & PLUSMN; 1.74, 19.8 & PLUSMN; 1.25, and 19.5 & PLUSMN; 1.58 pg cell-1, respectively. The diol esters proportion varied among the strains, with SHG having 58.9-69.9, HN having 75.4-86.5, and 3XS having 91.0-91.7%. The variety of toxins produced by distinct P. lima strains highlighted the significance of this method for appropriately measuring the risks connected with DSTs manufacturing. The proposed approach provides a technical basis for gathering comprehensive and accurate data on the potential risks of P. lima DSTs production, with significant implications for ensuring food safety and preventing harmful toxins from spreading in the marine ecosystem.
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