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Isolation and Biological Evaluation of Two Bioactive Metabolites from Aspergillus gorakhpurensis

Siddhardha Busi, Prabhakar Peddikotla, Suryanarayana M. Upadyayula, Venkateswarlu Yenamandra

Biology Division, , Indian Institute of Chemical Technology, Tarnaka, Hubsiguda, Hyderabad 500 007, Andhra Pradesh, India

Organic Chemistry Division-I, Indian Institute of Chemical Technology, Tarnaka, Hubsiguda, Hyderabad 500 007, Andhra Pradesh, India

Abstract: Fungi are known to produce a vast array of secondary metabolites that are gaining importance for their biotechnological applications. Screening of Aspergillus gorakhpurensis for the production of bioactive secondary metabolites results in the production of 4-(N-methyl-N-phenyl amino) butan-2-one and itaconic acid. The structure of the known compounds was established by 1H-, 13C-NMR and Mass spectral data. Biological evaluation of the two compounds against test microorganisms showed strong inhibitory activity of 4-(N-methyl-N-phenyl amino) butan-2-one towards bacteria and fungi. Only 4-( N -methyl-N- phenyl amino)-butan-2-one showed a marked significant activity (LD 50 = 330.69 m g/mL ) in Spodoptera litura larvicidal bioassay.

Keywords: Aspergillus gorakhpurensis; 4-( N -methyl-N- phenyl amino) butan-2-one; Itaconic acid; Antibacterial; Spodoptera litura .