Publications

antimicrobial action of an endophytic fungi from sophor flavescens and structure identification of its active constituent.	endophytic fungus bs002 was isolated and characterized from sophora flavescens by plate method, which has broad antimicrobial activity. isolation and trace of a new bioactive compound from the fungus' culture extracts with the method of column chromatography and tlc biological autoradiography was conducted. finally, it was identified as 6,7-(2'e) dibutenyl-5,8-dihydroxy-(z)-cyclooct-2-ene-1,4-dione by nuclear magnetic resonance, infrared and liquid chromatography-mass spectrometry. the compound ...	2014	26019517
sulfated steroid-amino acid conjugates from the irish marine sponge polymastia boletiformis.	antifungal bioactivity-guided fractionation of the organic extract of the sponge polymastia boletiformis, collected from the west coast of ireland, led to the isolation of two new sulfated steroid-amino acid conjugates (1 and 2). extensive 1d and 2d nmr analyses in combination with quantum mechanical calculations of the electronic circular dichroism (ecd) spectra, optical rotation, and 13c chemical shifts were used to establish the chemical structures of 1 and 2. both compounds exhibited moderat ...	2015	25812034
the effect of gamma irradiation on the properties of cucumber.	in this study, the effect of gamma irradiation on the shelf life and properties of cucumber was investigated. these properties include weight reduction, fruit density, juice, tissue firmness, total soluble solids (tss), total titratable acidity, chlorophyll and vitamin c, ph, marketability, flavor, frostbite and fungal effects. for this purpose, cucumbers were irradiated with dose of 2, 2.5 and 3 kgy. the exposure time was calculated by mcnp4c; the monte carlo particle transport code. three type ...	2017	29184234