Pregled bibliografske jedinice broj: 632579
Aflatoxins 50 years after: still unsolved chalenge
Aflatoxins 50 years after: still unsolved chalenge // 2. međunarodni simpozij "Vera Johanides" - Biotehnologija u Hrvatskoj do 2020
Zagreb, Hrvatska, 2013. (predavanje, nije recenziran, sažetak, ostalo)
CROSBI ID: 632579 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Aflatoxins 50 years after: still unsolved chalenge
Autori
Zjalić, Slaven
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo
Skup
2. međunarodni simpozij "Vera Johanides" - Biotehnologija u Hrvatskoj do 2020
Mjesto i datum
Zagreb, Hrvatska, 10.05.2013. - 11.05.2013
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Nije recenziran
Ključne riječi
aflatoxins; biosynthesis; toxicity; contamination
Sažetak
Aflatoxins were discovered after the massive death of turkeys in UK more than 50 years ago. These toxins, secondary metabolites of moulds grouped in Aspergillus section Flavi, present a high health hazard due to their cytotoxic, genotoxic immune-suppressing and teratogenic effects on humans and animals. Therefore the concentration of aflatoxins in food and feed commodities is limited by law in almost all countries. The contamination with aflatoxins can occur on different plant and animal derived substrates (seeds, dried fruits, cheese, dried meat), but seeds, especially the oily ones, are considered the major vehicle of aflatoxins in a food chain. After ingestion aflatoxins can be transmitted along the food chain either unchanged or metabolised in other more or less toxic forms like aflatoxins M1 in milk. The aflatoxigenic moulds requires relatively low water activity for their growth (aw ≥ 0.7) and consequently contamination of seeds with aflatoxins can occur in field or during any phase of postharvest processing and storage. The contamination in field occurs only in conditions of high humidity and high temperatures. In last decade, probably due to the climatic changes, the contamination in fields occurs more frequently also in European counties where, in the past, the presence of aflatoxins in food and feed were considered problem of imported raw materials or inadequate storage. Different strategies, either preventive or detoxification, have been applied to control the presence of aflatoxins in food and feed but none of them has completely solved the problem. The research of novel, more environmentally friendly strategies and tools in aflatoxins control is still ongoing.
Izvorni jezik
Engleski
Znanstvena područja
Biologija, Biotehnologija
