کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11030341 | 1646320 | 2019 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pre-harvest management is a critical practice for minimizing aflatoxin contamination of maize
ترجمه فارسی عنوان
مدیریت پیش از برداشت یک عمل حیاتی برای کم کردن آلودگی آفلاتوکسین به ذرت است
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کلمات کلیدی
ذرت، قبل از برداشت، آفلاتوکسین ها، گرفتن در معرض، کنیا،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش تغذیه
چکیده انگلیسی
Maize, the main dietary staple in Kenya, is one of the crops most susceptible to contamination by aflatoxin. To understand sources of aflatoxin contamination for home grown maize, we collected 789 maize samples from smallholder farmers' fields in Eastern and South Western, two regions in Kenya representing high and low aflatoxin risk areas, respectively, and determined aflatoxin B1 (AFB1) using ELISA with specific polyclonal antibodies. AFB1 was detected in 274 of the 416 samples from Eastern Kenya at levels between 0.01 and 9091.8â¯Î¼gâ¯kgâ1 (mean 67.8â¯Î¼gâ¯kgâ1). In South Western, AFB1 was detected in 233 of the 373 samples at levels between 0.98 and 722.2â¯Î¼gâ¯kgâ1 (mean 22.3â¯Î¼gâ¯kgâ1). Of the samples containing AFB1, 153 (55.8%) from Eastern and 102 (43.8%) from South Western exceeded the maximum allowable limit of AFB1 (5â¯Î¼gâ¯kgâ1) in maize for human consumption in Kenya. The probable daily intake (PDI) of AFB1 in Eastern Kenya ranged from 0.07 to 60612â¯ngâ¯kgâ1 bw dayâ1 (mean 451.8â¯ngâ¯kgâ1 bw dayâ1), while for South Western, PDI ranged from 6.53 to 4814.7â¯ngâ¯kgâ1 bw dayâ1 (mean 148.4â¯ngâ¯kgâ1 bw dayâ1). The average PDI for both regions exceeded the estimated provisional maximum tolerable daily intake of AFB1, which is a health concern for the population in these regions. These results revealed significant levels of preharvest aflatoxin contamination of maize in both regions. Prevention of preharvest infection of maize by toxigenic A. flavus strains should be a critical focal point to prevent aflatoxin contamination and exposure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Control - Volume 96, February 2019, Pages 219-226
Journal: Food Control - Volume 96, February 2019, Pages 219-226
نویسندگان
George Mahuku, Henry Sila Nzioki, Charity Mutegi, Fred Kanampiu, Clare Narrod, Dan Makumbi,