GC – MS analysis
Interpretation on mass spectrum of GC-MS was done using the database of National
Institute Standard and Technology (NIST) having more than 62,000 patterns. The mass spectrum of
the unknown component was compared with the spectrum of the known components stored in the
NIST library. The volatile compounds were tentatively identified on the basis of the NIST data base
by virtue of comparisons made of the actual mass spectral data acquired on each compound to the
data base. The chromatogram and the spectral analysis along with the name, molecular weight and
structure of the components of the endophytic fungus Penicillium sp. were ascertained below in
Fig. 2. Chemical structure of compounds present in ethyl acetate extract for Penicillium sp. are