黄曲霉毒素B_1污染玉米的比重筛分研究  

Screening for AFB_1-contaminated corn by specific gravity method

作　　者：罗小虎[1,2,3] 齐丽君[1,2,3] 房文苗 王韧[1,2,3] 王莉[1,2,3] 沈玉现 陈正行[1,2,3] 

机构地区：[1]江南大学食品科学与技术国家重点实验室,江苏无锡214122 [2]粮食发酵工艺与技术国家工程实验室,江苏无锡214122 [3]江南大学食品学院,江苏无锡214122 [4]鲁山县万通通机械制造有限公司,河南平顶山467300

出　　处：《食品与机械》2016年第6期13-18,共6页Food and Machinery

基　　金：公益性行业(农业)科研专项(编号:201203037);公益性行业(粮食)科研专项(编号:201313005;201513006);国家自然科学基金(编号:31371874;31501579);国家国际科技合作专项(编号:2015DFA30540);江苏省博士后基金(编号:1501078B);中央高校基本科研业务费专项资金资助(编号:JUSRP11510)

摘　　要：研究比重法对AFB_1污染玉米的筛分效果。结果表明:风量、纵向倾角和振幅对比重筛分效果具有显著影响(P<0.05),且在风量为6 000m^3/h、倾角7°、振幅15mm时,不同污染程度的玉米经比重筛分后,相比原料中的AFB_1含量,重质玉米中AFB_1含量分别降低21.2%和38.4%,轻质玉米和破碎率比例适中。比重筛分机是中国粮食生产中的重要设备,通过比重筛分去除AFB_1污染严重玉米具有良好的应用前景。Aimed at the severe contamination of AFB_1 in corn,effect of specific gravity separation on AFB_1-contaminated corn has been investigated.In this study,air volume,longitudinal gradient and amplitude have a significant influence on separation results.With air volume 6 000m^3/h,longitudinal gradient 7°,amplitude 15 mm,different levels of contaminated corn were separated with specific gravity.AFB_1 concentrations in obtained heavy corn were decreased by 21.2% and 38.4% respectively compared with the materials.The ratio of light corn and broken percentage of corn was moderate.As the specific gravity equipment is very significant in grain production,using specific gravity method to decrease AFB_1 in corn is practical and promising.

关 键 词：黄曲霉毒素B_1 比重 筛分 玉米 

分 类 号：TS210.1[轻工技术与工程—粮食、油脂及植物蛋白工程]