Occurrence and bioacessibility of mycotoxins in fish feed. Issue 4 (1st October 2020)

• Record Type: Journal Article
• Authors: Nogueira, Wesclen Vilar; de Oliveira, Francine Kerstner; Marimón Sibaja, Karen Vanessa; Garcia, Sabrina de Oliveira; Kupski, Larine; de Souza, Manuel Macedo; Tesser, Marcelo Borges; Garda-Buffon, Jaqueline
• Is Part Of: Food additives & contaminants. Volume 13:Issue 4(2020)
• Page Start: 244
• Page End: 251
• Publication Date: 2020-10-01
• Subjects: Absorption -- aflatoxin B1 -- ochratoxin A -- aquaculture -- zearalenone -- principal component analysis; Food additives -- Periodicals; Food contamination -- Periodicals; 664.07
• DOI: 10.1080/19393210.2020.1766577
• Languages: English
• ISSNs: 1939-3210

Abstract

ABSTRACT: In this study Aflatoxin B1 (AFB1 ), ochratoxin A (OTA) and zearalenone (ZEN) occurrence in fish feed, regarding its chemical composition, were investigated. Besides, AFB1 bioaccessibility to fish was evaluated by in vitro digestion. Mycotoxins were extracted by QuEChERS and quantified by HPLC-FLD. Results showed that 93.3% of the samples were contaminated at maximum levels of 16.5, 31.6, and 322 µg/kg in the cases of AFB1, OTA, and ZEN, respectively. A positive correlation between OTA, ZEN contamination, and lipid content was observed. Risk estimation of feed consumption by fish at the highest levels of AFB1, OTA, and ZEN shows that the younger the fish, the higher the risk of exposure to mycotoxins. The AFB1 bioaccessibility assay showed that 85% of this mycotoxin may be absorbed by fish. Therefore, establishing maximum levels in the fishing sector is fundamental to contribute to feed quality and nutritional safety of fish species.