title: Natural occurrence of fumonisins B(1) and B(2) in domestic maize of Taiwan.
abstract: Samples of maize grown in various districts of Taiwan were collected and analyzed for the presence of fumonisin B(1) (FB(1)) and fumonisin B(2) (FB(2)) using high-performance liquid chromatography. Forty-nine (44.5%) and 2 (1.8%) of 110 samples were found to contain FB(1) (109-1148 ng/g) and FB(2) (222-255 ng/g), respectively. The frequency of detection and also the maximum FB(1) concentration were found in samples from Penton (2/2, 262 ng/g), followed by Chiayi (18/26, 264 ng/g), Tainan (8/16, 160 ng/g), Hualinen (5/14, 1148 ng/g), Taitung (7/20, 109 ng/g), and Yunlin (9/26, 361 ng/g). Of the 110 samples examined, only 2 samples from Hualinen had been detected containing FB(2). During an analysis of the distribution pattern of FB(1), it became apparent that >79% of tested samples had FB(1) concentrations <100 ng/g, whereas 2.7% (or 3 samples) contained FB(1) >300 ng/g. These results clearly illustrated that domestically produced maize for human consumption is frequently contaminated with FB(1).
authors.affiliation: Institute of Botany, Academia Sinica, Nankang, Taipei, Taiwan, Republic of China.
authors.forename: T C
authors.initials: TC
authors.lastname: Tseng
authors.forename: C Y
authors.initials: CY
authors.lastname: Liu
mesh_terms: D002264:Carboxylic Acids / Q000032:analysis*; D002274:Carcinogens, Environmental / Q000032:analysis*; D005516:Food Microbiology; D037341:Fumonisins; D009183:Mycotoxins / Q000032:analysis*; D013624:Taiwan; D003313:Zea mays / Q000737:chemistry*
chemical_list: D002264:Carboxylic Acids; D002274:Carcinogens, Environmental; D037341:Fumonisins; D009183:Mycotoxins; C056934:fumonisin B2; C056933:fumonisin B1