geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Natural occurrence of Fusarium and subsequent fumonisin contamination in preharvest and stored maize in Benin, West Africa


, : Natural occurrence of Fusarium and subsequent fumonisin contamination in preharvest and stored maize in Benin, West Africa. International Journal of Food Microbiology 99(2): 173-183

The natural occurrence of Fusarium and fumonisin contamination was evaluated from 1999 to 2003 in both preharvest and stored maize produced by small-scale farmers in four agroecological zones of Benin. Mycological analyses revealed a predominance of both Fusarium and Aspergillus in maize samples compared to other genera. The two Fusarium species most commonly isolated from maize were Fusarium verticillioides (68%) and Fusarium proliferatum (31%). Atypical isolates of F. verticillioides with some characteristics of Fusarium andiyazi but apparently closer to F. verticillioides, because the isolates were all high fumonisin producers, were also found only on preharvest maize. Study of F. verticillioides strains showed the presence of extremely high fumonisin producers in Benin with total fumonisin levels ranging from 8240 to 16 690 mg/kg. Apart from 2002-2003, Fusarium occurrence was not significantly different from one zone to another, although a slight decrease was observed from south, humid, to north, drier. Fusarium occurrence varied somewhat from one season to another. It significantly decreased over the 6 months of storage. Widespread fumonisin occurrence in maize was observed. Most of the maize samples collected were found positive for fumonisin with levels ranging from not detected to 12 mg/kg in 1999-2000, 6.7 mg/kg in 2000-2001 and 6.1 mg/kg in 2002-2003. Fumonisin levels in maize were found to be significantly higher in the two southern zones during all the surveys. The highest mean total fumonisin level was detected in 1999-2000 in maize samples from the southern Guinea Savannah (SGS) (12 mg/kg), whereas in both 2000-2001 and 2002-2003, it was in samples from the forest mosaic savannah (FMS) (6.7 and 6.1 mg/kg, respectively). Fumonisin levels varied from one season to another and, throughout the storage time, showing a decreasing trend in each zone. However, this decrease was not significant every season. An increasing trend was observed during some seasons in the SGS and northern Guinea Savannah (NGS) zones. The results of this study emphasise that farmers and consumers, not only in Benin but also in other West African countries, should be alerted to the danger of fumonisin contamination in maize.

US$19.90

PMID: 15734565

DOI: 10.1016/j.ijfoodmicro.2004.08.012


Other references

Peel, Ch, 1986: Technical note trials of three growth retardants in a churchyard. Journal of the Sports Turf Research Institute 62(62): 200-203

Aguilar, J.A.; Summerson, C., 2000: Intracardiac thrombus in antiphospholipid antibody syndrome. In this report we describe the case of a 19-year-old woman who had right-sided hemiparesis. In search of a source of embolism, we performed transthoracic echocardiography, which showed a large, complex, and irregular multilobulated left ventricle...

Turconi M.; Nicola M.; Quintero M.G.; Giraldo E.; Micheletti R.; Rizzi C.A.; Donetti A., 1990: Azabicycloalkylbenzimidazolone derivatives a novel class of 5 ht3 receptor antagonists. Abstracts of Papers American Chemical Society 199(1-2): MEDI 103

Pejovic-Milovancevic, M.; Miletic, V.; Popovic-Deusic, S.; Draganic-Gajic, S.; Lecic-Tosevski, D.; Marotic, V., 2014: Psychotropic medication use in children and adolescents in an inpatient setting. Medication can be an effective part of treatment for several psychiatric disorders of childhood and adolescence but its use should be based on a comprehensive psychiatric evaluation and treatment plan. The aim of this study was to evaluate psychot...

Prokhorov K.V.; Likhomanov L.G.; Kazanskiy V.I.; Zvyagintsev L.I., 1978: Structural-petrological conditions for the formation of faults in amphibolitic facies. Pages 32-101 1978

Champagnac J.D.; Molnar P.; Anderson R.S.; Sue C.; Delacou B., 2007: Quaternary erosion-induced isostatic rebound in the Western Alps. The high elevation and deep incision of the Alps have traditionally been used as an argument for recent tectonic activity that has elevated the belt and increased erosion rates. Normal faulting and horizontal extension, however, dominate current t...

Rutschmann M.A.; Solms J., 1991: Inclusion complexes of potato starch a binding model with synergism and antagonism. The inclusion complex formation between gelatinized potato starch and the ligands (-)limonene and menthone was studied in ternary model systems. Binding equilibria approximated by the Hill equation, were analysed by the affinity spectrum method an...

Camacho, A.M.; Kowarski, A.; Migeon, C.J.; Brough, A.J., 1968: Congenital adrenal hyperplasia due to a deficiency of one of the enzymes involved in the biosynthesis of pregnenolone. A normo-tensive male pseudohermaphrodite (buccal smear chromatin negative, and karyotype XY) with cryptorchidism and minimal masculinization of the external genitalia manifested, at the age of 8 months, symptoms of salt loss with hyponatremia, hyp...

Corbacioglu, K.Seref.; Aksel, G.; Yildiz, A., 2016: Ruptured superior gluteal artery pseudoaneurysm with hemorrhagic shock: Case report. Pseudoaneurysm of the superior gluteal artery (SGA) is very rare and the most common causes are blunt or penetrating pelvic traumas. Although pseudoaneurysm can be asymptomatic at the time of initial trauma, it can be symptomatic weeks, months, ev...

Siriwardhana, E.A.Ranga.I.E.; Perera, P.A.J.; Sivakanesan, R.; Abeysekara, T.; Nugegoda, D.B.; Weerakoon, K.G.A.D., 2014: Is the staple diet eaten in Medawachchiya, Sri Lanka, a predisposing factor in the development of chronic kidney disease of unknown etiology? - A comparison based on urinary β2-microglobulin measurements. Exact mechanism of causation of chronic kidney disease of unknown etiology (CKDu) in Sri Lanka is not described to date, despite the identification of possible multiple risk factors. Questions have been raised as to why only some are affected whil...