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    Growth and substrate utilization patterns of a rhizopus stolonifer strain isolated from depolymerising rice husk

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    odeniyi-growth-2009.pdf (51.22Kb)
    Date
    2009
    Author
    Odeniyi, O.A.
    Onilude, A.A.
    Ayodele, M.A.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    A study was carried out on a new strain of Rhizopus stolonifer RCH7 isolated from a spontaneously-fermentingrice husk sample. Growth characteristics on and utilization profile of various substrates by thisisolate were investigated. The isolate was found to display the most extensive mycelia proliferation at atemperature of 37°C and a pH of 4.0. Divalent ionic additions did not cause an increase in the growth rate, but0.1M potassium ions increased the growth recorded by 34.3% compared to the control by 72 hours. This isolatewas able to effectively utilize Carboxymethylcellulose and Polygalacturonic acid as alternate nutritive substratesdemonstrating a growth of 90mm and 86mm respectively by 72 hours. The dry mycelia mass of R. stoloniferobtained from the cultivation in broth containing lactose was 26mm while that in glucose broth was 24mm. Thegrowth and substrate utilization profile exhibited by this R. stolonifer RCH7 isolate is suggestive of its strongcapacity to employ residues of agricultural wastes as growth substrates. It is also an indication of the isolate’spotential to degrade ‘agricultural waste residues, especially those from rice plant parts’.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/2509
    IITA Subjects
    Grain Legumes; Food Security; Handling, Transport, Storage And Protection Of Agricultural Products; Nutrition; Disease Control; Plant Production
    Agrovoc Terms
    Rhizopus Stolonifer; Environmental Tests; Mycelia Proliferation; Agricultural Wastes; Fungi And Bacteria; Agricultural Practices; Micro-Organisms; Enzymes; Cellulosic
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    World Applied Sciences Journal
    Collections
    • Journal and Journal Articles5283
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