title: A Survey of Aflatoxin-Producing Aspergillus sp. from Peanut Field Soils in Four Agroecological Zones of China.
abstract: Peanut pods are easily infected by aflatoxin-producingAspergillussp.ecies from field soil. To assess the aflatoxin-producingAspergillussp. in different peanut field soils, 344 aflatoxin-producingAspergillusstrains 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 Northeast zone (NE)). Nearly 94.2% (324/344) of strains wereA. flavusand 5.8% (20/344) of strains wereA. parasiticus. YZR had the highest population density ofAspergillussp. and positive rate of aflatoxin production in isolated strains (1039.3 cfu·g-1, 80.7%), the second was SEC (191.5 cfu·g-1, 48.7%), the third was YR (26.5 cfu·g-1, 22.7%), and the last was NE (2.4 cfu·g-1, 6.6%). The highest risk of AFB₁ contamination on peanut was in YZR which had the largest number of AFB₁ producing isolates in 1g soil, followed by SEC and YR, and the lowest was NE. The potential risk of AFB₁ contamination in peanuts can increase with increasing population density and a positive rate of aflatoxin-producingAspergillussp. in field soils, suggesting that reducing aflatoxigenicAspergillussp. in field soils could prevent AFB₁ contamination in peanuts.
authors.affiliation: Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China. zcs.2003@163.com.|Shandong Peanut Research Institute, Qingdao 266100, China. zcs.2003@163.com.
authors.forename: Chushu
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China. sjonnim@gmail.com.
authors.forename: Jonathan Nimal
authors.initials: JN
authors.lastname: Selvaraj
authors.affiliation: Qingdao Agricultural University, Qingdao 266109, China. rice407@163.com.
authors.forename: Qingli
authors.initials: Q
authors.lastname: Yang
authors.affiliation: Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China. liuyang01@caas.cn.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
mesh_terms: D016604:Aflatoxin B1 / Q000378:metabolism*; D010367:Arachis / Q000382:microbiology*; D001230:Aspergillus / Q000145:classification / Q000254:growth & development / Q000378:metabolism*; D002681:China; D018556:Crops, Agricultural / Q000382:microbiology*; D005516:Food Microbiology; D009754:Nuts / Q000382:microbiology*; D012988:Soil Microbiology
chemical_list: D016604:Aflatoxin B1
keywords: China; aflatoxin B1; aflatoxin-producing Aspergillus; peanut soils