Evaluation of heavy metals, mycotoxins and mineral bioaccessibility through in vitro static digestion models of rainbow trout (Oncorhynchus mykiss) and sole (Dover sole) side stream extracts obtained by pressurized liquid extraction

Min Wang; Jianjun Zhou; Noelia Pallarés; Juan Manuel Castagnini; María Carmen Collado; Francisco J Barba

doi:10.1016/j.foodchem.2023.136054

Evaluation of heavy metals, mycotoxins and mineral bioaccessibility through in vitro static digestion models of rainbow trout (Oncorhynchus mykiss) and sole (Dover sole) side stream extracts obtained by pressurized liquid extraction

Food Chem. 2023 Sep 1:419:136054. doi: 10.1016/j.foodchem.2023.136054. Epub 2023 Mar 29.

Authors

Min Wang¹, Jianjun Zhou², Noelia Pallarés³, Juan Manuel Castagnini⁴, María Carmen Collado⁵, Francisco J Barba⁴

Affiliations

¹ Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Avda. Vicent Andrés Estellés, s/n, 46100 Burjassot, Spain; Department of Biotechnology, Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Agustin Escardino 7, 46980 Paterna, Spain.
² Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Avda. Vicent Andrés Estellés, s/n, 46100 Burjassot, Spain; Department of Biotechnology, Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Agustin Escardino 7, 46980 Paterna, Spain. Electronic address: jianz@alumni.uv.es.
³ Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Avda. Vicent Andrés Estellés, s/n, 46100 Burjassot, Spain; Department of Biotechnology, Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Agustin Escardino 7, 46980 Paterna, Spain. Electronic address: Noelia.pallares@uv.es.
⁴ Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Avda. Vicent Andrés Estellés, s/n, 46100 Burjassot, Spain.
⁵ Department of Biotechnology, Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Agustin Escardino 7, 46980 Paterna, Spain.

PMID: 37018863
DOI: 10.1016/j.foodchem.2023.136054

Abstract

The recovery of antioxidants and minerals as well as the content of contaminants of rainbow trout and sole side streams (head, skin and viscera) extracts obtained by pressurized liquid extraction (PLE) were evaluated. Then, the effect of the gastrointestinal digestion was tested. No mycotoxins were detected in the extracts, while heavy metals contents (mg/kg) were up to 2.9 (As), 0.054 (Cd), 0.16 (Hg) and 0.073 (Pb), being below maximum legislated limits. A positive effect of PLE was found for the antioxidant capacity recovery, being the oxygen radical capacity of sole head and skin extracts significantly enhanced after digestion (∼3.8 times). PLE significantly increased Mg, Fe, Zn, Se and P (K_PLE > 1) contents of rainbow trout side streams, Zn (K_PLE5.97) and Fe (K_PLE 2.80) of head sole and Mg, Se and P of all samples. Moreover, Mg, Ca and Fe bioaccessibility was lower in all sole extracts compared to rainbow trout.

Keywords: Antioxidants; Bioaccessibility; Bioactive compounds; Fish side streams; Mineral; Pressurized liquid extraction.

MeSH terms

Animals
Antioxidants / chemistry
Digestion
Metals, Heavy* / analysis
Metals, Heavy* / chemistry
Minerals / chemistry
Mycotoxins*
Oncorhynchus mykiss / metabolism
Rivers

Substances

Metals, Heavy
Minerals
Mycotoxins
Antioxidants