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Acta botánica mexicana
On-line version ISSN 2448-7589Print version ISSN 0187-7151
Abstract
FAPOHUNDA, Stephen O. and OLAJUYIGBE, O. O.. Studies on stored cereal degradation by alternaria tenuissima. Act. Bot. Mex [online]. 2006, n.77, pp.31-40. ISSN 2448-7589.
The ability of a strain of Alternaria tenuissima Kunze (IMI 301005) Wiltshire to degrade and alter the nutrient profile of three common Nigerian cereals was studied. The grains involved were Pennisetum glaucum, Sorghum vulgare and Oryza sativa. Fat, fibre and protein decreased in the inoculated substrates, and this was accompanied by an increase in ash content. The highest levels of cereal degradation by the mould were attained at pH 6.8 and at temperature range of 30-35 °C. Within 48 hours of incubation, extracellular proteases were detected in all the culture media.
Keywords : Alternaria tenuissima; cereal; nutrient's degradation.