Consolidated vs new advanced treatment methods for the removal of contaminants of emerging concern from urban wastewater.

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A novel glycolipid of mass 1935 and a phospholipid of mass 1522 are the main residual lipids (along with traces of PGP-Me, S-TGD-1, and PG) specifically associated with "delipidated" bacteriorhodopsin fractions BR I and BR II, prepared by Triton X-100 treatment of purple membrane (PM), from a genetically engineered strain (L33) of Halobacterium salinarum, and chromatography on phenyl-Sepharose CL-4B. The novel glycolipid and phospholipid are components of the PM matrix not previously described. The TLC isolated and purified novel glycolipid and phospholipid were shown, by chemical degradation, mass spectrometry, and NMR analyses, to have the structure, respectively, of a phosphosulfoglycolipid, 3-HSO(3)-Galp-beta1,6Manp-alpha1,2Glcp-alpha1,1-[sn-2, 3-di-O-phytanylglycerol]-6-[phospho-sn-2,3-di-O-phytanylglycero l], and of a glycerol diether analogue of bisphosphatidylglycerol (cardiolipin), sn-2,3-di-O-phytanyl-1-phosphoglycerol-3-phospho-sn-2, 3-di-O-phytanylglycerol.