Moisture content, insect pests and mycotoxin levels of maize at harvest and post-harvest in the Middle Belt of Ghana

Danso, J.K.; Osekre, E.A.; Manu, N.; Opit, George P.; Armstrong, Paul R.; Arthur, F. H.; Campbell, James F.; Mbata, George N.

doi:10.1016/j.jspr.2017.08.007

Cited by 27 publications

(14 citation statements)

References 8 publications

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“…The inclination for the insect attack was also in agreement with Rashad et al (2003) that RH of 70-80%, and temperature of 25-30C were found to be optimum for insect growth. The same insects were species found in this study, Sitophilus Zeamais and Oryzaephilus Surinamensis were also mentioned by Danso et al (2017) andFAO (1994). Coleoptera and Lepidoptera are common insect pests in stored products and may be found in other types of grains like wheat, sorghum, paddy and rice (FAO, 1994).…”

Section: Insect Assessmentsupporting

confidence: 86%

“…Grain corn samples were processed for insect assessment after the existence of insects was noticed. An amount of 0.5 kg of sub-samples from different storage location was poured on a tray and the samples were then sifted using siever (Laboratory Test Sieves, England) sizes of 7, 10 and 25 (2.8 mm, 2 mm and 0.71 mm, respectively) following the method by Danso et al (2017). The collected insect was frozen and then counted.…”

Section: Insect Assessmentmentioning

confidence: 99%

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Properties of Grain Corn During Short Term Storage in Tropical Ambient Temperature

Ramli

Sahari

Abdullah³

et al. 2021

Adv Agric Food Res J

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Grain corn in nature possesses a tendency to absorb and release moisture even during storage. Grain respiration will lead to fungal growth, consequently mycotoxin development and decreased nutritional components. Storage in tropical weather like Malaysia, in which the temperature is constantly hot throughout the year (temperature 23–33°C, with relative humidity around 81%) will promote further spoilage to the stored grain corn. Therefore, this paper discussed the properties of grain corn during three months of storage in a Malaysian weather setting. Grain corn with the initial moisture content of 12.5± 0.02% MC bagged in the; a) woven polypropylene jumbo bags, b) woven propylene 40 kg bag and c) plastic sealed container was stored in two different storage facilities located in MARDI for three months. The grain corn after three months of storage showed a consistent water activity, a darkening value in Chroma index, within the permissible limit of fungal growth and exhibits insect pest development of two major species of Coleoptera family. Grain corn is considered safe after three months of storage because low aflatoxin levels have been found, but the physical structure has been compromised due to insect pest infestations.

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Section: Insect Assessmentsupporting

confidence: 86%

Section: Insect Assessmentmentioning

confidence: 99%

Properties of Grain Corn During Short Term Storage in Tropical Ambient Temperature

Ramli

Sahari

Abdullah³

et al. 2021

Adv Agric Food Res J

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“…For company B, significantly higher ( P < 0.05) moisture content and a w of samples from sampling point 9 could be due to addition of moisture in the form of steam and water during the conditioning process prior to pelleting, to keep the particles together, and increase gelatinization of starch 40 . Nevertheless, the moisture content and a w values in the present work were below 15% and 0.70 respectively, which are considered as the critical levels for safe storage 41,42 . This was expected because the moisture content of imported grains is normally specified in the contract by the buyer during import and export activities.…”

Section: Discussionmentioning

confidence: 60%

Prevalence of mycotoxigenic fungi and assessment of aflatoxin contamination: a multiple case study along the integrated corn‐based poultry feed supply chain in Malaysia

et al. 2020

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BACKGROUND Corn, a main feed ingredient in the livestock industry, is one of the most susceptible crops to fungal infection and aflatoxin contamination. Livestock feeding on aflatoxin (AF)‐contaminated feed have been shown to experience feed refusal, and decreased growth rate, milk production, and feed efficiency. In poultry, AF poisoning causes weight loss, poor feed efficiency, and reduced egg production and egg weight. The present work therefore aimed to determine the prevalence of mycotoxigenic fungi and the occurrence of AF contamination along the integrated corn‐based poultry feed supply chain in Malaysia. A total of 51 samples were collected from different points along the feed supply chain from integrated poultry feed companies. The samples were subjected to mycological analyses (fungal isolation, enumeration, identification), and AFs were quantified by high‐performance liquid chromatography equipped with a fluorescence detector (HPLC‐FLD). RESULTS Samples collected from sampling point 1 (company A) and sampling point 9 (company B) yielded the highest total fungal load (>log 4 CFU g−1). The prevalent fungal genera isolated were Aspergillus, Fusarium, and Penicillium spp. Aflatoxin B1 was detected in 8.3% of corn samples, and 7.4% of corn‐based poultry feed samples along the feed supply chain, whereas AFs B2, G1, and G2 were not detected. CONCLUSION The incidence of mycotoxigenic fungi along the integrated poultry feed supply chain warrant continuous monitoring of mycotoxin contamination to reduce the exposure risk of mycotoxin intake in poultry. © 2020 Society of Chemical Industry

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“…However, once the fungal infection starts in the field, management practices aimed at mitigating mycotoxin build-up may not achieve desired results. The duration at which biologically significant levels of aflatoxins were detected was inconsistent with reports by Mutegi et al [31], Danso et al [32] and Atehnkeng et al [33], who recommended that smallholder groundnut farmers store seeds before the new growing season six months after harvest. Again, the IPJB packaging was effective for short-term storage only as the level of pathogen infection and aflatoxin contamination recorded was low.…”

Section: Groundnut Varietymentioning

confidence: 69%

“…aflatoxin levels detected in the seeds may have been partly predisposed by the type of packaging materials and storage methods used. Hell et al [24], Udoh et al [29], Guo et al [30] and Danso et al [32] reported that 'storage methods can facilitate fungal proliferations and aflatoxin contamination in maize'.…”

Section: Groundnut Varietymentioning

confidence: 99%

Aflatoxin levels in seeds of commonly grown groundnut varieties (Arachis hypogaea L.) in Ghana as influenced by storage method

Yeboah¹,

Agriculture²,

Ahiakpa³

et al. 2020

AJFAND

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Quality seeds of improved local genotypes is an important input for increasing the productivity of groundnut in Ghana. The existing means of meeting groundnut seed requirements, especially by smallholder farmers, have serious challenges with timely supply and access to these improved genotypes as a result of the limited participation of the private sector and the self-pollinated nature of the crop. Smallholder farmers who take the initiative to store their own seeds, have challenges with storage fungi and aflatoxin contamination. Farmers' groundnut seed stocks have shown that improvement in seed quality and farmers' seed management requires maintaining healthy seed stock. Toxicogenic fungi and mycotoxins have been reported in several human and animal health disorders and are major contaminants of groundnut seeds during storage. Some level of success has, however, been achieved from earlier studies to evaluate the efficacy of some plant botanicals for preserving shelled groundnuts. However, for smallholder on-farm safety, such phyto-based preservation methods rather reduce groundnut seed embryo vigour and germination rates. Designing and developing economically appropriate storage solution (practices) for maintaining seed integrity for use requires evidence-based research and an eco-friendly approach. Thus, this study was aimed at assessing the efficacy of using jute bag (JB) and interlaced polyethylene jute bag (IPJB) combinations for the storage of groundnut seeds (varieties) against fungal infection and aflatoxin contamination under ambient storage conditions. The study was undertaken at

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Moisture content, insect pests and mycotoxin levels of maize at harvest and post-harvest in the Middle Belt of Ghana

Cited by 27 publications

References 8 publications

Properties of Grain Corn During Short Term Storage in Tropical Ambient Temperature

Properties of Grain Corn During Short Term Storage in Tropical Ambient Temperature

Prevalence of mycotoxigenic fungi and assessment of aflatoxin contamination: a multiple case study along the integrated corn‐based poultry feed supply chain in Malaysia

Aflatoxin levels in seeds of commonly grown groundnut varieties (Arachis hypogaea L.) in Ghana as influenced by storage method

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