Deteriorative changes in maize kernels due to Aspergillus flavus Link. and Fusarium verticillioides (Sacc.) Nirenberg

Muga, Francis Collins; Workneh, Tilahun Seyoum; Marenya, Moses Okoth

doi:10.14720/aas.2019.114.1.8

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…In this study, the content of total aflatoxin in samples was correlated with meteorological conditions, specifically relative humidity for which a positive association was observed. Relative humidity below 70% limits the growth of A. flavus and the production of aflatoxin while 90% relative humidity produces a higher level of aflatoxin (Muga et al, 2019; Pratiwi et al, 2015). In this study, relative humidity before and during collection of samples was below the required conditions for the fungi to produce high levels of aflatoxin.…”

Section: Discussionmentioning

confidence: 99%

Aflatoxin levels and Aspergillus species in maize in the Province of Isabela, Philippines

Romero

Cumagun

2023

Journal of Phytopathology

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The province of Isabela is the top maize producer in the Philippines. The intensive cultivation and the tropical climate in the region may favour fungal growth and aflatoxin contamination in maize grains. Thus, the study aimed to determine the occurrence of aflatoxin and mycotoxigenic Aspergillus species in maize varieties in this region. Samples were obtained in six municipalities from hybrid (Bt) maize (n = 101) and open‐pollinated varieties (n = 6) during the dry season (March and April) of 2019. Aflatoxin levels were quantified through enzyme‐linked immunosorbent assay, and Aspergillus species were identified through cultural and molecular methods. Aflatoxin was detected in 50.5% of maize samples; 49.5% of samples were less than the limit of detection (3 μg/kg), 16.8% with 3–20 μg/kg, 10.9% with 21–50 μg/kg and 22.8% above 50 μg/kg. Samples within the acceptable level were 66.3% for food (<20 μg/kg) and 77.2% for animal feed (<50 μg/kg), while 22.8% of samples were above the acceptable level of the Philippine National Standard for raw maize grains. More than 90% of Aspergillus species detected were A. flavus. Other species identified were A. tamarii and A. terreus. Despite the dry production season in the province with low relative humidity during harvesting, inadequate post‐harvest practices and the presence of A. flavus elevated the level of aflatoxin in sample grains. Additional work involving multi‐year surveys is needed to confirm the results and conclusions of this study.

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Section: Discussionmentioning

confidence: 99%

Aflatoxin levels and Aspergillus species in maize in the Province of Isabela, Philippines

Romero

Cumagun

2023

Journal of Phytopathology

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“…Grain handling in Ethiopia is by using animals and human labour (Garbaba et al, 2018b;Muga et al, 2019). Maize shelling, i.e.…”

Section: Shellingmentioning

confidence: 99%

Preharvest and postharvest management practices related to mycotoxin contamination in maize in Ethiopia – a review

Sadik,

Fentahun,

Brouwer

et al. 2023

World Mycotox. J.

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Mycotoxins are fungal metabolites that commonly contaminate food crops such as maize. Conducive climatic conditions together with improper crop value chain practices are favorable for mycotoxin contamination. Previous studies in Ethiopia have indicated that mycotoxin contamination in maize is prevalent. For the implementation of proper mycotoxin prevention and control strategies, identifying the current local value chain practices that are related to mycotoxin contamination is needed. This review investigates current preharvest and postharvest management practices of maize cultivation in Ethiopia in relation to mycotoxin contamination and identifies gaps in knowledge and priority areas for future research. Findings indicate that the majority of applied preharvest and postharvest practices of maize in Ethiopia seem to favor mycotoxin contamination. Recent developments in grain drying and storage technologies, which are also potential mycotoxin management strategies, are facing constraints for proper implementation in subsistence farmers’ level.

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Deteriorative changes in maize kernels due to Aspergillus flavus Link. and Fusarium verticillioides (Sacc.) Nirenberg

Cited by 2 publications

References 17 publications

Aflatoxin levels and Aspergillus species in maize in the Province of Isabela, Philippines

Aflatoxin levels and Aspergillus species in maize in the Province of Isabela, Philippines

Preharvest and postharvest management practices related to mycotoxin contamination in maize in Ethiopia – a review

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