Effects of Garcinia kola and Azadirachta indica Seeds in the Inhibition of Aspergillus flavus and Aspergillus parasiticus Isolated from Zea mays L. Awka, Nigeria - American Journal of Plant Sciences

AJPS > Vol.7 No.11, August 2016

Volume 7, Issue 11 (August 2016)

ISSN Print: 2158-2742 ISSN Online: 2158-2750

Google-based Impact Factor: 1.57 Citations

Effects of Garcinia kola and Azadirachta indica Seeds in the Inhibition of Aspergillus flavus and Aspergillus parasiticus Isolated from Zea mays L. Awka, Nigeria ()

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DOI: 10.4236/ajps.2016.711147 1,882 Downloads 3,616 Views Citations

Author(s)

A. N. Achugbu¹, J. E. Amadi¹, C. V. Ilodibia¹, M. N. Ikegbunam^2*

Affiliation(s)

¹Department of Botany, Nnamdi Azikiwe University, Awka, Nigeria.
²Department of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria.

ABSTRACT

Crude extracts of neem and bitter kola seeds were evaluated for inhibition of the growth of aflatoxin-producing fungi (Aspergillus flavus and A. parasiticus) in Zea mays L. Different concentrations of the methanolic and ethanolic extracts of the test plants were tested individually and in combination against A. flavus and A. parasiticus. Inhibition of A. flavus using methanolic extracts of G. kola, neem and combination of (G. kola and neem) seeds revealed that inhibition was highest in G. kola (77.5) at 10% concentration, and lowest in neem (35.1) at 2.5% concentration. Statistical analysis showed a significant difference at 5%. Inhibition of A. flavus using ethanolic extracts of G. kola, neem and combination of G. kola and neem seeds revealed that inhibition was highest in the combination of (80.4) at 10% concentration and lowest in G. kola (31.4) at 2.5% concentration. Using methanolic extracts of G. kola, neem and combination against A. parasiticus showed that inhibition was highest in G. kola and combination of seeds (54.8) at 10% concentration and lowest in neem seeds (30.5) at 5.0% concentration. The percentage inhibition of A. parasiticus using ethanolic extracts of G. kola, neem and combination revealed that inhibition was highest in G. kola (79.5) at 10% concentration and lowest in the combination of G. kola and neem seeds (26.6) at 2.5% concentration. These results will be important in planning a management strategy against A. flavus and A. parasiticus and other fungi associated with spoilage of stored products.

KEYWORDS

Garcinia kola, Azadirachta indica, Inhibition, Aspergillus Species, Zea mays

Share and Cite:

Achugbu, A. , Amadi, J. , Ilodibia, C. and Ikegbunam, M. (2016) Effects of Garcinia kola and Azadirachta indica Seeds in the Inhibition of Aspergillus flavus and Aspergillus parasiticus Isolated from Zea mays L. Awka, Nigeria. American Journal of Plant Sciences, 7, 1555-1563. doi: 10.4236/ajps.2016.711147.

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