| Effect-directed profiling and identification of bioactive metabolites from field, in vitro-grown and acclimatized Musa spp. accessions using high-performance thin-layer chromatography-mass spectrometry, Ayoola-Oresanya, I. O., Sonibare, M. A.*, Gueye, B., Paliwal, R., Abberton, M. and Morlock, G. E., in: Journal of Chromatography A, volume 1616, number -: 460774, pages 1-14, ISSN 0021-9673, 2020. [DOI] |
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| Gas chromatography-mass spectrometry and single nucleotide polymorphism genotype by sequencing analyses reveal the bean chemical profiles and relatedness of Coffea canephora genotypes in Nigeria, Anagbogu, C. F.*, Ilori, C. O.*, Bhattacharjee, R., Olaniyi, O. O.* and Beckles, D. M., in: Plants, volume 8, number -: 425, pages 1-17, ISSN 2223-7747, 2019. [DOI] |
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| Secondary metabolite profile and phytotoxic activity of genetically distinct forms of Colletotrichum gloeosporioides from yam (Dioscorea spp.), Abang, M., Abraham, W., Asiedu, R., Hoffmann, P., Wolf, G. and Winter, S., in: Mychological Research, volume 113, pages 130-140, ISSN 0953-7562, 2009. |
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| Keywords: | Anthracnose; chemotype; chromatography; colletotrichum gloeosporioides; Dioscorea spp.; mass spectrometry; metabolite profiling; NMR; phytotoxin
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| Mycoflora and natural occurrence of aflatoxins and fumonisin B1 in cassava and yam chips from Benin, West Africa, Gnonlonfin, B.*, Hell, K., Fandohan, P.* and Siame, A. B.*, in: International Journal of Food Microbiology, volume 122, number 1-2, pages 140-147, 2008. |
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Abstract:
The presence of fungi, aflatoxins and fumonisin B1 in cassava and yam chips (during 28 processing and storage) were evaluated during two consecutive seasons in two agroecological zones of Benin (Northern Guinea Savannah, NGS and Sudan Savannah, SS). The Benin samples were assessed for moisture content, fungal infestation and total aflatoxin and fumonisin B1 contamination. During the two seasons, samples collected from the NGS, had moisture contents ranging from 10.0 to 14.7% in cassava chips and from 11.4 to 15.3% in yam chips. In samples from the SS, moisture content ranged from 10.1 to 14.5% and 11.1 to 14.5% in cassava and yam chips, respectively. A. flavus was the predominant fungal species. The maximum cfu/g in cassava and yam chips was 8950 and 6030, respectively. Other fungal species isolated included P. chrysogenum, M. piriformis, Phoma sorghina, F. verticillioides, R. oryzae and Nigrospora oryzae. High performance liquid chromatography analysis of both cassava and yam chips showed no contamination by either aflatoxins or fumonisin B1.
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