Arshad Javaid, Iqra H. Khan, Khajista Jabeen, Uzma Bashir


The present study was carried out to find out mycochemical profile of culture filtrates of Alternaria japonica through GC-MS analysis. The fungus was incubated for 21 days using malt extract broth as growth medium. Culture filtrate was filtered and concentrated by evaporating water at 45 °C. Filtrates were partitioned using n-hexane followed by chloroform. Both the organic solvent fractions were analyzed through GC-MS. In n-hexane and chloroform fractions, 14 and 10 compounds were identified, respectively. Major compounds in n-hexane fraction were o-xylene (36.9%); ethyl benzene (19.3%), hexane, 2-4-dimethyl- (16.8%), 1-2 dimethylbenzene (7.56%), cyclohexane, 1-ethyl-1-methyl (3.36%), heptane, 2,5-dimethyl- (3.36%) and octane, 4-methyl- (2.52%). Likewise, predominant compounds in chloroform fraction were octane-4 methyl (24.62%), carbonic dihydrazine (16.41%), octane, 2,4,6-trimethyl (12.56%), hydrazine, (1,1-dimethylethyl) (8.75%), 16-hexadecanoyl hydrazide (7.66%) and stearic acid hydrazide (7.08%). Literature surveyed showed that many compounds identified in both the fractions possess antimicrobial, pharmacological, antioxidant, antidepressant, anticancer and anti-inflammatory properties.


Alternaria japonica; antimicrobial; antioxidant; GC-MS analysis; mycochemicals

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Pakistan Journal of Phytopathological
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