title: Occurrence of fumonisin B(1) in corn from the main corn-producing areas of China.
abstract: Fumonisin B(1) (FB(1)) is the most abundant of the fumonisin mycotoxins, mainly produced in maize by F. verticillioides and F. proliferatum. A total of 282 corn samples harvested in 2005 from six provinces, the main corn-producing areas of China, were analyzed for FB(1) using high-performance liquid chromatography. All samples except one were (99.6%) positive for FB(1) at levels varying from 3 to 71,121 ng/g with mean and median levels for all samples of 6,662 and 1,569 ng/g, respectively. During an analysis of the distribution pattern for FB(1), it became apparent that 43.6% of tested samples had FB(1) concentrations below 1,000 ng/g, while 25.2% contained in excess of 5,000 ng/g. The average exposure to FB(1) (1.1 microg/kg body weight/day) is within the provisional maximum tolerable daily intake of 2 microg/kg body weight/day set by the Joint FAO/WHO Expert Committee on Food Additives.
authors.affiliation: School of Public Health, China Medical University, Liaoning, China.
authors.forename: Hui-Zhi
authors.initials: HZ
authors.lastname: Gong
authors.forename: Rong
authors.initials: R
authors.lastname: Ji
authors.forename: Yan-Xi
authors.initials: YX
authors.lastname: Li
authors.forename: Hong-Yu
authors.initials: HY
authors.lastname: Zhang
authors.forename: Bing
authors.initials: B
authors.lastname: Li
authors.forename: Yue
authors.initials: Y
authors.lastname: Zhao
authors.forename: Lin
authors.initials: L
authors.lastname: Sun
authors.forename: Fei
authors.initials: F
authors.lastname: Yu
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
mesh_terms: D002274:Carcinogens, Environmental / Q000009:adverse effects / Q000032:analysis*; D002681:China; D002851:Chromatography, High Pressure Liquid; D004938:Esophageal Neoplasms / Q000209:etiology; D005516:Food Microbiology; D005523:Food Supply; D037341:Fumonisins / Q000009:adverse effects / Q000032:analysis*; D005670:Fusarium / Q000378:metabolism; D006801:Humans; D003313:Zea mays / Q000737:chemistry* / Q000382:microbiology
chemical_list: D002274:Carcinogens, Environmental; D037341:Fumonisins; C056933:fumonisin B1