نتایج جستجو برای: aflatoxigenic

تعداد نتایج: 282  

2017
Chushu Zhang Jonathan Nimal Selvaraj Qingli Yang Yang Liu

Peanut pods are easily infected by aflatoxin-producing Aspergillus sp.ecies from field soil. To assess the aflatoxin-producing Aspergillus sp. in different peanut field soils, 344 aflatoxin-producing Aspergillus strains were isolated from 600 soil samples of four agroecological zones in China (the Southeast coastal zone (SEC), the Yangtze River zone (YZR), the Yellow River zone (YR) and the Nor...

Journal: :Bioresource technology 2009
Cesare Accinelli M Ludovica Saccà Hamed K Abbas Robert M Zablotowicz Jeffery R Wilkinson

Previous research demonstrated that aflatoxin contamination in corn is reduced by field application of wheat grains pre-inoculated with the non-aflatoxigenic Aspergillus flavus strain NRRL 30797. To facilitate field applications of this biocontrol isolate, a series of laboratory studies were conducted on the reliability and efficiency of replacing wheat grains with the novel bioplastic formulat...

2013
Bukola. C. Adebayo-Tayo Abiodun. A. Onilude Grace Patrick

This study was aimed to estimate the mycoflora and aflatoxin contamination of smoked dried fishes of Stock (Gadus morhua), Skip jack tuna (Katsuworus pelamis), Croaker (Pseudotolithus typhus), Sting ray (Dasyatis margarita), Cat (Arius hendeloti), Bonga (Ethalmosa fimbriota), Ribban fish (Triuchurius trichurius), Stark (Carchanas faunis), Thread fin (Pentanemis qumquarius), Sole (Cynoglossus br...

Journal: :Fungal genetics and biology : FG & B 2009
Perng-Kuang Chang Bruce W Horn Joe W Dorner

Cyclopiazonic acid (CPA), an indole-tetramic acid mycotoxin, is produced by many species of Aspergillus and Penicillium. In addition to CPA Aspergillus flavus produces polyketide-derived carcinogenic aflatoxins. Aflatoxin biosynthesis genes form a gene cluster in a subtelomeric region. Isolates of A. flavus lacking aflatoxin production due to the loss of the entire aflatoxin gene cluster and po...

2017
Amaranta Carvajal-Campos Ama Lethicia Manizan Souria Tadrist David Koffi Akaki Rose Koffi-Nevry Geromy G Moore Stephen O Fapohunda Sylviane Bailly Didier Montet Isabelle P Oswald Sophie Lorber Catherine Brabet Olivier Puel

Several strains of a new aflatoxigenic species of Aspergillus, A. korhogoensis, were isolated in the course of a screening study involving species from section Flavi found contaminating peanuts (Arachis hypogaea) and peanut paste in the Côte d'Ivoire. Based on examination of four isolates, this new species is described using a polyphasic approach. A concatenated alignment comprised of nine gene...

Journal: :International journal of food microbiology 2003
Graciela Vaamonde Andrea Patriarca Virginia Fernández Pinto Ricardo Comerio Claudia Degrossi

Aspergillus section flavi strains isolated from peanuts, wheat and soybean grown in Argentina were screened for aflatoxins (type B and G) and cyclopiazonic acid (CPA) production. Aspergillus flavus was the predominant species in all substrates, although there was almost the same proportion of A. flavus and Aspergillus parasiticus in peanuts. Aspergillus nomius was not found. Incidence of aflato...

Journal: Mycologia Iranica 2017

Aflatoxins are highly toxic compounds that are produced as secondary metabolites by some Aspergillus and Emericella species. Despite huge progress on aflatoxin research during the past 50 years, we have witnessed many cases of food contamination with aflatoxins all over the world. Aflatoxins have mutagenic and carcinogenic effects and they are capable of inducing hepatocellular carcinoma in hum...

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