Download presentation
Presentation is loading. Please wait.
Published byRoger Franklin Modified over 9 years ago
1
Prepared for COMESA aflatoxin workshop in Malawi Joao Augusto, Ranajit Bandyopadhyay, Juliet Akello, Joseph Atehnkeng March 11, Lilongwe, Malawi Aflatoxin Outlook in Mozambique
2
Outline Background information about aflatoxins in Mozambique Aflatoxin regulations and monitoring in Mozambique Ongoing research and technology options Gaps to be addressed
3
Background Information about aflatoxins in Mozambique Late 1970’s – Intake of aflatoxin contaminated food, especially from groundnut, linked to high prevalence of liver cancer in Southern Mozambique Late 1990’s to date – Rejection of groundnut and groundnut products by the EU for exceeding aflatoxin legal limits
4
Background Information about aflatoxins in Mozambique Notifications of Mozambican groundnut products by EU market: DateProduct typeNotification typeSubject 5/2/2007foodalertaflatoxins (B1 = 12; Tot. = 14.2 µg/kg - ppb) in peanut kernels from Mozambique 3/19/2007foodinformationaflatoxins (B1 = 44.6; Tot. = 57.0 µg/kg - ppb) in groundnuts from Mozambique 6/11/2007foodinformationaflatoxins (B1 = 4.8; Tot. = 7.5 µg/kg - ppb) in groundnut kernels from Mozambique via the United Kingdom and via the Netherlands 4/7/2009foodborder rejectionaflatoxins (B1 = 34.5; Tot. = 52.2 / B1 = 3.1; Tot. = 3.6 µg/kg - ppb) in peanuts from Mozambique 4/7/2009foodborder rejectionaflatoxins (B1 = 6.7; Tot. = 18.9 / B1 = 0.9; Tot. = 4.6 / B1 = 1.9; Tot. = 4.4 µg/kg - ppb) in peanuts from Mozambique 12/30/2009feedinformationaflatoxins (B1 = 120 mg/kg - ppm) in groundnuts for birdseed from Mozambique Source: RASFF portal, 2011
5
Background Information about aflatoxins in Mozambique Late 1970’s – Intake of aflatoxin contaminated food, especially from groundnut, linked to high prevalence of liver cancer in Southern Mozambique Late 1990’s to date – Rejection of groundnut and groundnut products by the EU for exceeding aflatoxin legal limits Survey in 2013 – identification of aflatoxin hot-spot areas for maize and groundnut in central and northern Mozambique (USAID-Moz grant)
6
Outline Background information about aflatoxins in Mozambique Aflatoxin regulations and monitoring in Mozambique Ongoing research and technology options Gaps to be addressed
7
Aflatoxin regulations and monitoring in Mozambique According to FAO (1994) – There are aflatoxin regulations in Mozambique (but not enforced) Universidade Lurio (UniLurio) in northern Mozambique – Aflatoxin testing and monitoring for different crops (but the lab is not accredited) Madal Ltd in central Mozambique – private company working with some 3,000 groundnut farmers (sorting and aflatoxin testing for the farmers)
8
Outline Background information about aflatoxins in Mozambique Aflatoxin regulations and monitoring in Mozambique Ongoing research and technology options Gaps to be addressed
9
Aflatoxin surveillance in Mozambique Conducted at harvest, May-June, 2013 In Northern and Central regions, but with emphasis to Nacala Corridor Selection criteria for the locations: (a) maize and groundnut in the same area (but sampling will be as far as possible from each sampling point); (b) number of districts in each province; (c) distribution in altitude; (d) cropping systems; and (e) accessibility Materials: “Sampling procedures” for survey, “Sampling questionnaires” for each survey group, colored-printed and laminated mycotoxin factsheets in Portuguese, GPS handsets, etc
10
Objectives of the surveillance Estimate magnitude of aflatoxins Determine geographic distribution of aflatoxins Facilitate planning
11
Determine magnitude of aflatoxins n=283 n=307
12
Determine magnitude of aflatoxins
13
Distribution of aflatoxins: by region CropRegion Frequency of aflatoxin negatives (%) Frequency of aflatoxin positives (%) Aflatoxin concentration range (ppb) Groundnut NORTHERN 40.7 (n=110) 59.3 (n=137) 0.0 – 5,673.5 CENTRAL 33.3 (n=12) 66.7 (n=24) 0.0 – 710.7 Maize NORTHERN 47.1 (n=111) 52.9 (n=92) 0.0 – 687.1 CENTRAL40.0 (n=45) 60.0 (n=62) 0.0 – 160.1
14
Distribution of aflatoxins: by province CropProvince Freq. aflatoxin negatives (%) Freq. aflatoxin positives (%) Aflatoxin concentration range (ppb) Groundnut NIASSA53.8 (n=14)46.2 (n=12)0.0 – 5,673.5 NAMPULA45.7 (n=91)54.3 (n=108)0.0 – 3,121.2 ZAMBEZIA46.2 (n=6)53.8 (n=7)0.0 – 710.7 CABO DELGADO22.7 (n=5)77.3 (n=17)0.0 – 83.4 MANICA28.6 (n=2)71.4 (n=5)0.0 – 9.0 TETE25.0 (n=4)75.0 (n=12)0.0 – 6.0 Maize NAMPULA58.0 (n=69)42.0 (n=50)0.0 – 687.1 ZAMBEZIA52.8 (n=19)47.2 (n=17)0.0 – 160.1 CABO DELGADO26.3 (n=5)73.7 (n=14)0.0 – 133.5 NIASSA56.9 (n=37)43.1 (n=28)0.0 – 117.0 TETE34.0 (n=18)66.0 (n=35)0.0 – 46.8 MANICA33.3 (n=5)66.7 (n=10)0.0 – 27.0
15
Distribution of aflatoxins: by levels % g’dnut samples at harvest (n=283)% maize samples at harvest (n=307) crop Frequency aflatoxin at harvest in Northern region (%) Frequency aflatoxin at harvest in Central region (%) 4 ppb 20 ppb 20 ppb 4 ppb 20 ppb 20 ppb G’dnut 63.2 (n=156) 75.7 (n=187) 24.3 (n=60) 66.7 (n=24) 94.4 (n=34) 5.6 (n=2) Maize69.5 (n=141) 96.6 (n=196) 3.4 (n=7) 51.9 (n=54) 91.3 (n=95) 8.7 (n=9)
16
Awareness raising about aflatoxins
17
Outline Background information about aflatoxins in Mozambique Aflatoxin regulations and monitoring in Mozambique Ongoing research and technology options Gaps to be addressed
18
Identifying, selecting atoxigenic strains for aflatoxin biocontrol More than 400 atoxigenic L-strains of Aspergillus flavus identified from maize and groundnut Most competitive and widely distributed atoxigenic strains, with no toxigenic member in their VCG groups, will be selected Selected 8-12 VCG strains to be formulated in aflasafe-Moz biocontrol products for testing in farmers’ fields in 2014 crop growing season
19
Outline Background information about aflatoxins in Mozambique Aflatoxin regulations and monitoring in Mozambique Ongoing research and technology options Gaps to be addressed
20
Gaps to be addressed Infrastructure and human capacity building, polices Equipping and certifying laboratories Recruiting and training Mozambican technicians and students Awareness raising Advocacy, regulations and enforcement
21
Donors & Partners Dr. Peter Cotty – USDA-FAS at University of Arizona-Tucson
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.