摘要
为获得高纯度的鸡鲍氏3型志贺菌脂多糖(lipopolysaccharide,LPS)及其亚单位O抗原多糖(O-polysaccharide,OPS),采用改良热酚水法提取鸡鲍氏3型志贺菌的LPS,并联合使用葡聚糖凝胶层析得到高纯度的LPS;采用酸水解法联合葡聚糖凝胶层析获得高纯度的O-PS。生化方法检测结果显示所提纯LPS和O-PS纯度高,兔回肠襻试验结果显示所提纯的LPS活性好。本试验结果表明提取的LPS和O-PS可进行特异性研究及制备有效的候选疫苗。
To obtain LPS and its subunit O- PS with high purity from chicken S. boydii type 3, LPS from chicken Shigella was extracted with modified hot phenol-water method, high purified LPS was obtained through sepbadex gel chromatography, O-PS was obtained by combination with acid hydrolysis method and sephadex gel chromatography. Biochemical assay showed that the purified LPS and O-PS with high purity, rabbit ideal loop experiment demanstrated that there was high activity in puri fled LPS. The result indicated that extracted LPS and O-PS could be used in specific pathogenesis research and developed as ef fective vaccine candidates.
出处
《中国畜牧兽医》
CAS
北大核心
2014年第5期133-136,共4页
China Animal Husbandry & Veterinary Medicine
基金
国家自然科学基金(30972187)