Investigation of DON and aflatoxin content in Agria and Hermes chips potato cultivars grown in Aksaray, Sivas, Kayseri, Nigde
JOURNAL OF PLANT DISEASES AND PROTECTION
Authors: Zongur, Alper
Abstract
Deoxynvalenol and aflatoxins are frequently studied in food products due to their prevalence and toxicity. Deoxynvalenol (DON) can cause diarrhea, dysentery, ataxia, mucosal bleeding and sudden death. It can cause immune system disorders, gastroenteritis, dermatitis and blood diseases such as aleukia (ATA) and aplastic anemia. DON causes anorexia and vomiting because it affects serotonin-mediated neurons. In addition, it inhibits protein synthesis by preventing the binding of ribosome units. Aflatoxins are another mycotoxin that is important for animal and human health. Aflatoxins can trigger hepatocellular carcinoma, liver cancer, apoptosis and cytotoxicity, as well as cytokine expression. Sometimes these situations can cause sudden death. In this study, potato varieties collected from 4 different cities were examined. DON amounts were found between 0.2-1.8 mg/kg in Agria potato varieties and 0.2-2.1 mg/kg in Hermes potato varieties. Aflatoxin amounts were found between 2.9-8.7 mu g/kg in Agria potato varieties and 2.1-9.1 mu g/kg in Hermes potato varieties.
Exogenous factors affecting growth of Aspergillus species
INDIAN JOURNAL OF ANIMAL RESEARCH
Authors: Naseer, Omer; Khan, Jawaria Ali; Omer, Muhammad Ovais; Naseer, Junaid; Sohail, Muhammad Luqman; Munir, Muhammad Asif; Saleem, Muhammad Usman; Imran, Muhammad; Shahid, Muhammad
Abstract
Aflatoxins are the most deleterious fungal metabolites in humans, animals and plants. Recently, more attention has been paid to the occurrence and growth of Aspergillus spp. In this study, the effects of pH, light, relative humidity (RH) and temperature on the growth of Aspergillus spp. were investigated using broth medium. Results revealed highest mean of dried mycelial weight (365.67mg) at pH 4.0. The highest spores per ml (8.243 x 107) at pH 5.0. Similarly, growth during darkness was higher on first day of incubation in A. candidus and A. niger, while A. flavus and A. fumigatus showed the highest growth under continuous light. Lower RH% (32.5%) favored only the growth of A. niger. However, the growth in other Aspergillus species was significantly increased by RH% (50.5%, 85.0% and 100%). At 40 degrees C, only A. fumigatus and A. flavus showed significant (P<0.05) growth. There were significant differences in all the treatments (P<0.05). This proposes that these interacting environmental conditions impact significant effect on Aspergillus growth.