Which Aspergillus species produce aflatoxin?
Aspergillus flavus is one of the major producers of aflatoxin and can contaminate wide range of agricultural commodities either in field or in storage.
Which species of Aspergillus produces aflatoxin g1 and g2?
Aflatoxins. Aflatoxins (B1, B2, G1 and G2) are mainly produced by Aspergillus flavus and Aspergillus parasiticus, which commonly contaminate a variety of animal food.
Which mycotoxin is produced by Aspergillus flavus?
Aflatoxins
Aflatoxins are amongst the most poisonous mycotoxins and are produced by certain moulds (Aspergillus flavus and Aspergillus parasiticus) which grow in soil, decaying vegetation, hay, and grains. Crops that are frequently affected by Aspergillus spp.
Does Aspergillus niger produce aflatoxin?
Aspergillus niger, a mold commonly associated with Aspergillus flavus in damaged corn, interferes with the production of aflatoxin when grown with A. flavus on autoclaved corn.
What are the types of aflatoxin?
There are more than 20 known aflatoxins, but the four main ones are aflatoxin B1 (AFB1), aflatoxin B2 (AFB2), aflatoxin G1 (AFG1), and aflatoxin G2 (AFG2; Inan et al., 2007), while aflatoxin M1 (AFM1) and M2 (AFM2) are the hydroxylated metabolites of AFB1 and AFB2 (Giray et al., 2007; Hussain and Anwar, 2008).
How are aflatoxins formed?
Aflatoxins are metabolites produced by toxigenic strains of molds, mainly Aspergillus flavus and A. parasiticus which grow in soil, hay, decaying vegetation, and grains. Aflatoxin is produced by fungal action during production, harvest, storage, and processing of food.
What are the types of aflatoxins?
What is the structure of aflatoxin?
Chemically, aflatoxins are difurocoumarolactones (difurocoumarin derivatives). Their structure consists of a bifuran ring fused to a coumarin nucleus with a pentenone ring (in B and M aflatoxins) or a six- membered lactone ring in G aflatoxins (Fig. 2).
How aflatoxin is produced?
Aflatoxins are a family of toxins produced by certain fungi that are found on agricultural crops such as maize (corn), peanuts, cottonseed, and tree nuts. The main fungi that produce aflatoxins are Aspergillus flavus and Aspergillus parasiticus, which are abundant in warm and humid regions of the world.
What is the difference between aflatoxin and mycotoxin?
The key difference between aflatoxin and mycotoxin is that aflatoxin is a type of poisonous mycotoxin produced by Aspergillus species, while mycotoxin is a secondary metabolite produced by fungi that are capable of causing diseases and death in humans and other animals.
Which species of Aspergillus produce aflatoxin B1 and B2?
Aflatoxins. Aflatoxins (B1, B2, G1 and G2) are mainly produced by Aspergillus flavus and Aspergillus parasiticus, which commonly contaminate a variety of animal food. Aflatoxins are proven to be mutagens, carcinogens and teratogens.
What is aflatoxin structure?