Isolation and Characterization of Two New Antimicrobial Acids from Quercus incana (Bluejack Oak)

Two new compounds were purified from ethyl acetate fraction of Quercus incana. The structure of these compounds is mainly established by using advanced spectroscopic technique such as UV, IR, one-dimensional (ID) and two-dimensional (2D) NMR techniques, and EI mass. The structural formula was deduced to be 4-hydroxydecanoic acid and 4-hydroxy-3-(hydroxymethyl) pentanoic acid . Both isolated compounds were tested for their antimicrobial potential and showed promising antifungal activity against Aspergillus niger and Aspergillus flavus.

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