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Using liquid chromatography-mass spectrometry (LC-MS/MS), the phenolic content of the secondary metabolic extract of Quercus infectoria gall (Q. infectoria gall) extracted with supercritical CO2 and co-solvent methanol can be evaluated directly. 10 g of Q. infectoria gall was extracted using the SCFE CO2 technique at 50 °C under 20 MPa of pressure for 60 minutes with 1% methanol by weight. The extract contains seven bioactive components, including tannic acid (67.18%), quinic acid (7.99%), gallic acid (2.57%),maleic acid (0.02%), ellagic acid (0.22%), salicylic acid (0.03%), chlorogenic acid (0.09%), benzoic acid (0.01%), caffeic acid (0.02%), and aconitic acid (0.02%). Other compositions are rather difficult to detect due to the reproducibility of the acquired peaks. [ABSTRACT FROM AUTHOR]

The modified ZSM-5 commercial as a filler for the polyethersulfone membrane was investigated in this work. The modification of ZSM-5 was prepared from aqueous solution 0.25 M NaOH as long as 30 minutes and returned to HZSM-5 from by exchange with NH4-acetate and calcined at 550 °C. The ZSM-5 commercial and H-ZSM-5 were characterized by X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). XRD analysis showed the presence of ZSM-5 and the desilication treatment did not have a significant effect on the structural crystal phase of ZSM-5. The FTIR analysis shows support for XRD data that the similarity of the peaks and absence of any new bonding formation after the desilication process, it has vibrations of the pentacle and Si-O, Al-O skeletons peaks in 545 and 450 cm-1 which were characteristic of the ZSM-5. Modified ZSM-5 was as a filler in preparing the PES membrane by a phase inversion method. XRD data analysis shows that the composite membranes have characteristic peaks of ZSM-5 particle and amorphous PES and in the SEM image of cross section was seen as an asymmetrical membrane with tending a pore structure to be finger-like. The presence of ZSM-5 and PES in the composite membrane shows that ZSM-5 can be use as a filler in PES membranes. [ABSTRACT FROM AUTHOR]