Understanding the mycobiota of maize from the highlands of Guatemala, and implications for maize quality and safety

Mendoza, José Rodrigo; Kok, Car Reen; Stratton, Jayne; Bianchini, Andréia; Hallen‐Adams, Heather E.

doi:10.1016/j.cropro.2017.07.009

Cited by 23 publications

(20 citation statements)

References 49 publications

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“…with incidences of up to 7.33%, 2.45%, 16.09%, 21.33%, 12.50% and 6.54%, respectively (Figure 1). These accompanying species are common mycobiota on maize kernels in Serbia and worldwide and already confirmed in some previous studies (Krnjaja et al, 2004;Tančić, 2009;Mendoza et al, 2017;Xing et al, 2018;Tóth et al, 2012). The lower incidence of Aspergillus and Penicillium species in the present study is consistent with the findings of Rodríguez Páez et al 2011, who also detected Penicilium spp.…”

Section: Resultssupporting

confidence: 93%

Fungal biodiversity on maize kernels in an insecticide evaluation trial

et al. 2019

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The European corn borer (ECB) Ostrinia nubilalis and Fusarium ear rot Fusarium spp. pose a continuous threat to maize production worldwide. There are several reports indicating that ECB damage to maize ears promotes Fusarium ear rot infection. The aim of this study was to monitor the influence of different insecticide treatments (a.i. chlorantraniliprole, indoxacarb, and chlorantraniliprole+lambda-cyhalothrin) on the ECB and fungal diversity on maize kernels in the field in a four-year trial (2013-2016). A total of 16 different fungal genera were isolated from maize kernels, and Fusarium species were confirmed to be the dominant pathogens, present in all treatments, throughout the four years of experiments. The incidence of Aspergillus spp. and Penicillium spp. was established to be low. Apart from Fusarium species, the most frequent genera were: Aspergillus spp., Mortierella spp., Mucor spp., Penicillium spp., Acremonium spp. and Rhizopus spp. Treatments with chlorantraniliprole and chlorantraniliprole+lambda-cyhalothrin showed higher efficacy, though not statistically significant, compared to indoxacarb, in reducing the number of ECB larvae and damage they cause. However, no direct effect on the number of isolated fungal genera has been observed in any of the three insecticide treatments.

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Section: Resultssupporting

confidence: 93%

Fungal biodiversity on maize kernels in an insecticide evaluation trial

et al. 2019

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“…FB1 contamination was found in three analysed beers; this could be a consequence of the use of corn as an unmalted adjunctcorn grits are commonly used in order to achieve a greater degree of lightness in colour, clarity, calories, and flavour (Bertuzzi et al 2011). Corn has been proven susceptible to infestation by FBproducing Fusarium, which would explain the abovementioned finding (Robledo et al 2001;Mendoza et al 2017).…”

Section: Estimation Of Mycotoxins Daily Intake and Exposure Riskmentioning

confidence: 90%

Frequency and levels of mycotoxins in beer from the Mexican market and exposure estimate for deoxynivalenol mycotoxins

et al. 2019

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The aim of the present study was to evaluate the occurrence of 23 mycotoxins in beer purchased in Mexico and to assess two exposure scenarios in the Mexican population through beer consumption. Multi-mycotoxin analysis of a total of 61 different beers (132 samples) was carried out using UHPLC-MS/MS equipment. Probability density functions were used to describe mycotoxins contamination. The daily intake of mycotoxins was estimated using a semi-probabilistic approach, applying the Monte Carlo method. Deoxynivalenol (DON) and its metabolites (deoxynivalenol-3-glucoside (DON3G) and 3-acetyl-deoxynivalenol (3ADON) were the mycotoxins found in higher proportions in contaminated samples. None of the other mycotoxins overpassed the limit of quantification (LOQ) of the method. The combined intake of DON and its analogues ranged from 5.24 to 86.59 ng kg-1 bw day-1, which represent from 1.20 to 19.83 % of the DON TDI. The results suggest that depending on the individual consumption of beer and depending on the type of beer, the intake of DON via beer could represent a significant percentage of the tolerable daily intake (TDI).

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“…Alternaria, Cladosporium, and Fusarium) and storage fungi (e.g. Aspergillus and Penicillium) in maize from Guatemala [34], such outcome may be related with elevated moisture during harvesting and throughout storage, as well as possible pestassociated wounds [35]. Water activity (a w ) plays a significant role on the occurrence of fungi [31].…”

Section: 3mentioning

confidence: 99%

Mycoflora of Maize in Niger State, Nigeria

Muhammad

Apeh

Olorunmowaju

et al. 2019

Advanced Research in Life Sciences

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Fungi have been associated with contamination and spoilage of food. These organisms are known to thrive in different weather and environmental conditions. Maize kernel obtained from field, store and market from 25 Local Government Areas of Niger State within the month of August to September were analyzed for fungi occurrence using standard methods. Ten different fungus; Aspergillus niger, A. ochraceus, A. flavus, A. fumigatus, A. parasiticus, Mucor spp, Fusarium spp, Penicillium spp, Yeast and Rhizopus spp, were identified and isolated from the maize kernel. From the agro-ecological zones of the state, the most predominant fungi were Aspergillus species (241/345), Rhizopus spp (41/345) and Mucor spp (37/345) while Penicilium spp and yeast were the least identified. Within the zones, Aspergillus species have the highest occurrence; wet (65/95), driest (63/95), wettest (56/95) and dry zone (54/95) zones. The highest occurrence of fungi was found in the market sample (129) followed by store (112) and field (104). High percentage occurrence of 11.6% was recorded in Suleja, Wushishi, and Borgu Local Government Area, followed by 10. 6, 10.1, 8.7, 9.7, 9.2, 8.7 and 8.2% in Bosso, Tafa, Madalla, Minna, Paiko, Bida and Sabon wuse respectively. Mold species known to be mycotoxin producers were reported in this work. This poses as a risk factor to food safety.

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Understanding the mycobiota of maize from the highlands of Guatemala, and implications for maize quality and safety

Cited by 23 publications

References 49 publications

Fungal biodiversity on maize kernels in an insecticide evaluation trial

Fungal biodiversity on maize kernels in an insecticide evaluation trial

Frequency and levels of mycotoxins in beer from the Mexican market and exposure estimate for deoxynivalenol mycotoxins

Mycoflora of Maize in Niger State, Nigeria

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