Abstract
Aflatoxin contamination of staple crops, commonly occurring in warm areas, negatively impacts human and animal health, and hampers trade and economic development. The fungus Aspergillus flavus is the major aflatoxin producer. However, not all A. flavus genotypes produce aflatoxins. Effective aflatoxin control is achieved using biocontrol products containing spores of atoxigenic A. flavus. In Africa, various biocontrol products under the tradename Aflasafe are available. Private and public sector licensees manufacture Aflasafe using spores freshly produced in laboratories adjacent to their factories. BAMTAARE, the licensee in Senegal, had difficulties to obtain laboratory equipment during its first year of production. To overcome this, a process was developed in Ibadan, Nigeria, for producing high-quality dry spores. Viability and stability of the dry spores were tested and conformed to set standards. In 2019, BAMTAARE manufactured Aflasafe SN01 using dry spores produced in Ibadan and sent via courier and 19 000 ha of groundnut and maize in Senegal and The Gambia were treated. Biocontrol manufactured with dry spores was as effective as biocontrol manufactured with freshly produced spores. Treated crops contained safe and significantly (P < 0.05) less aflatoxin than untreated crops. The dry spore innovation will make biocontrol manufacturing cost-efficient in several African countries.
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Claims 4
Claim · model-written summary
Dry spores met viability and stability standards.
- Taxon
- groundnut and maize
Arachis hypogaea
Zea mayse1 - Outcome
- Viability and stabilitye0
- Comparator
- set standardse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Viability and stability of the dry spores were tested and conformed to set standards”
e1“groundnut and maize”
Claim · model-written summary
Dry-spore biocontrol was as effective as freshly produced spore biocontrol.
- Taxon
- groundnut and maizeArachis hypogaeaZea mayse1
- Treatment
- Biocontrol manufactured with dry sporese0
- Interactor
- A. flavus
Aspergillus flavuse2biocontrol_agent - Outcome
- as effectivee0
- Direction
- as effectivee0
- Comparator
- biocontrol manufactured with freshly produced sporese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biocontrol manufactured with dry spores was as effective as biocontrol manufactured with freshly produced spores”
e1“groundnut and maize”
e2“atoxigenic A. flavus”
Claim · model-written summary
Treated crops contained significantly less aflatoxin than untreated crops.
- Taxon
- groundnut and maizeArachis hypogaeaZea mayse1
- Treatment
- Treated cropse0
- Interactor
- A. flavusAspergillus flavuse2biocontrol_agent
- Outcome
- aflatoxine0
- Direction
- lesse0
- Comparator
- untreated cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treated crops contained safe and significantly (P < 0.05) less aflatoxin than untreated crops”
e1“groundnut and maize”
e2“atoxigenic A. flavus”
Claim · model-written summary
Dry-spore biocontrol was used to treat 19 000 ha of groundnut and maize.
- Taxon
- groundnut and maizeArachis hypogaeaZea mayse0
- Interactor
- A. flavusAspergillus flavuse1biocontrol_agent
- Outcome
- were treatede0
- Value
- 19 000 hae0
- Setting
- Senegal and The Gambiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“19 000 ha of groundnut and maize in Senegal and The Gambia were treated”
e1“atoxigenic A. flavus”
The same questions in other papers
biocontrol · Aspergillus flavus · Arachis hypogaea (peanut)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →biocontrol · Aspergillus flavus · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.