Profiles of fungal metabolites including regulated mycotoxins in individual dried Turkish figs by LC-MS/MS


Sulyok M., Krska R., Senyuva H.

MYCOTOXIN RESEARCH, vol.36, no.4, pp.381-387, 2020 (Peer-Reviewed Journal) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 4
  • Publication Date: 2020
  • Doi Number: 10.1007/s12550-020-00398-5
  • Journal Name: MYCOTOXIN RESEARCH
  • Journal Indexes: Science Citation Index Expanded, Scopus, PASCAL, Agricultural & Environmental Science Database, BIOSIS, CAB Abstracts, EMBASE, Food Science & Technology Abstracts, MEDLINE, Veterinary Science Database
  • Page Numbers: pp.381-387
  • Keywords: Dried figs, Fungal metabolites, Fluorescence, LC-MS, MS analysis, Aflatoxins, Kojic acid, AFLATOXIN CONTAMINATION, SECONDARY METABOLITES, FLUORESCENCE, FUMONISIN, IDENTIFICATION, COOCCURRENCE, OCHRATOXIN, PATULIN, ACID, B-2

Abstract

Fungal metabolites including regulated mycotoxins were identified by a validated LC-MS/MS method in 180 individual Turkish dried figs from 2017 and 2018 harvests. Hand-selected dried figs were subjectively classified based on the extent of fluorescence. Forty-three fungal metabolites including eight EU-regulated mycotoxins were identified and quantified. Figs classified as being uncontaminated mostly did not contain aflatoxins above 1 mu g/kg. Despite being "uncontaminated" from an aflatoxin perspective, kojic acid was present in significant quantities with a maximum level of 3750 mg/kg (0.375% w/w) and tenuazonic acid was also found (2 mu g/kg to 298 mg/kg) in some figs. Notable in the screening of figs has been the presence of significant amounts of aflatoxin M-1(AFM1) in figs also containing significant levels of aflatoxin B-1(AFB1), which is the first time that AFM1 has been reported as naturally occurring in dried figs.