PMID- 34822592 OWN - NLM STAT- MEDLINE DCOM- 20220222 LR - 20220222 IS - 2072-6651 (Electronic) IS - 2072-6651 (Linking) VI - 13 IP - 11 DP - 2021 Nov 16 TI - Simultaneous Detection of Seven Alternaria Toxins in Mixed Fruit Puree by Ultra-High-Performance Liquid Chromatography-Tandem Mass Spectrometry Coupled with a Modified QuEChERS. LID - 10.3390/toxins13110808 [doi] LID - 808 AB - The presence of Alternaria toxins (ATs) in fruit purees may cause potential harm to the life and health of consumers. As time passes, ATs have become the key detection objects in this kind of food. Based on this, a novel and rapid method was established in this paper for the simultaneous detection of seven ATS (tenuazonic acid, alternariol, alternariol monomethyl ether, altenuene, tentoxin, altenusin, and altertoxin I) in mixed fruit purees using ultra-high performance liquid chromatography-tandem mass spectrometry. The sample was prepared using the modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) method to complete the extraction and clean-up steps in one procedure. In this QuEChERS method, sample was extracted with water and acetonitrile (1.5% formic acid), then salted out with NaCl, separated on an ACQUITY UPLC BEH C(18) with gradient elution by using acetonitrile and 0.1% formic acid aqueous as eluent, and detected by UPLC-MS/MS under positive (ESI(+)) and negative (ESI(-)) electrospray ionization and MRM models. Results showed that the seven ATs exhibited a good linearity in the concentration range of 0.5-200 ng/mL with R(2) > 0.9925, and the limits of detection (LODs) of the instrument were in the range of 0.18-0.53 mug/kg. The average recoveries ranged from 79.5% to 106.7%, with the relative standard deviations (RSDs) no more than 9.78% at spiked levels of 5, 10, and 20 mug/kg for seven ATs. The established method was applied to the determination and analysis of the seven ATs in 80 mixed fruit puree samples. The results showed that ATs were detected in 31 of the 80 samples, and the content of ATs ranged from 1.32 mug/kg to 54.89 mug/kg. Moreover, the content of TeA was the highest in the detected samples (23.32-54.89 mug/kg), while the detection rate of Ten (24/31 samples) was higher than the other ATs. Furthermore, the other five ATs had similar and lower levels of contamination. The method established in this paper is accurate, rapid, simple, sensitive, repeatable, and stable, and can be used for the practical determination of seven ATs in fruit puree or other similar samples. Moreover, this method could provide theory foundation for the establishment of limit standard of ATs and provide a reference for the development of similar detection standard methods in the future. FAU - Xing, Jiali AU - Xing J AD - Ningbo Academy of Product and Food Quality Inspection (Ningbo Fibre Inspection Institute), Ningbo 315048, China. AD - College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China. FAU - Zhang, Zigeng AU - Zhang Z AD - College of Life Sciences, China Jiliang University, Hangzhou 310018, China. FAU - Zheng, Ruihang AU - Zheng R AD - Ningbo Academy of Product and Food Quality Inspection (Ningbo Fibre Inspection Institute), Ningbo 315048, China. FAU - Xu, Xiaorong AU - Xu X AD - Ningbo Academy of Product and Food Quality Inspection (Ningbo Fibre Inspection Institute), Ningbo 315048, China. FAU - Mao, Lingyan AU - Mao L AD - Ningbo Academy of Product and Food Quality Inspection (Ningbo Fibre Inspection Institute), Ningbo 315048, China. FAU - Lu, Jingping AU - Lu J AD - Ningbo Academy of Product and Food Quality Inspection (Ningbo Fibre Inspection Institute), Ningbo 315048, China. FAU - Shen, Jian AU - Shen J AD - Ningbo Academy of Product and Food Quality Inspection (Ningbo Fibre Inspection Institute), Ningbo 315048, China. FAU - Dai, Xianjun AU - Dai X AD - College of Life Sciences, China Jiliang University, Hangzhou 310018, China. FAU - Yang, Zhenfeng AU - Yang Z AD - College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Validation Study DEP - 20211116 PL - Switzerland TA - Toxins (Basel) JT - Toxins JID - 101530765 RN - 0 (Mycotoxins) SB - IM MH - Alternaria/*metabolism MH - Chromatography, High Pressure Liquid/*methods MH - Fruit/microbiology MH - Limit of Detection MH - Mycotoxins/*analysis MH - Reproducibility of Results MH - Tandem Mass Spectrometry/*methods PMC - PMC8619939 OTO - NOTNLM OT - Alternaria toxins OT - mixed fruit puree OT - modified QuEChERS method OT - ultra-high-performance liquid chromatography-tandem mass spectrometry COIS- The authors declare no conflict of interest. EDAT- 2021/11/26 06:00 MHDA- 2022/02/23 06:00 PMCR- 2021/11/16 CRDT- 2021/11/25 17:10 PHST- 2021/10/18 00:00 [received] PHST- 2021/11/11 00:00 [revised] PHST- 2021/11/11 00:00 [accepted] PHST- 2021/11/25 17:10 [entrez] PHST- 2021/11/26 06:00 [pubmed] PHST- 2022/02/23 06:00 [medline] PHST- 2021/11/16 00:00 [pmc-release] AID - toxins13110808 [pii] AID - toxins-13-00808 [pii] AID - 10.3390/toxins13110808 [doi] PST - epublish SO - Toxins (Basel). 2021 Nov 16;13(11):808. doi: 10.3390/toxins13110808.