EasyPrep LPS Extraction kit is designed for efficient extraction of lipopolysaccharides from the outer membrane of Gram-negative bacteria. This kit does not use traditional chloroform or phenol methods, and yields high quality LPS that can be easily characterized and quantified, using other reagents and methods. It uses a bacterial membrane lysis buffer and protein digestion with our proprietary SP-Proteinase K to specifically extract LPS alone from bacterial culture (approximately 1-4% of dry weight) with a yield of LPS in micrograms.