悬铃木叶片暗棕色抑菌色素的分离纯化及特性的初步研究

悬铃木叶片暗棕色抑菌色素的分离纯化及特性的初步研究 ISOLATION, PURIFICATION AND PARTIAL PROPERTIES OF ANTI MICROBIAL DARK BROWN PIGMENT FROM LEAVES OF PLATANUS ORIENTALIS 刘学群 Liu Xuequn 1 first-author 王春台 Wang Chuntai 1 肖龙 Xiao Long 1 刘定武 Liu Dingwu 1 林滢 Lin Yun 1 中南民族学院化学系 中南民族学院化学系 Department of Chemistry,South central College for Nationalities Department of Chemistry,South central College for Nationalities 以碱提取、酸沉淀和ｓｉｌｉｃａｇｅｌ、Ａｌ２Ｏ３及ｓｅｐｈａｄｅｘＧ－２５柱层析分离纯化等步骤，从悬铃木落叶中制备得到一种暗棕色化合物，经ＰＡＧＥ、ＰＬＣ及ＴＬＣ检测均为单一谱带或单一斑点；该有色化合物熔点２８２．５９～２８３．２９℃，λＫＯＨｍａｘ：２１５ｎｍ，Ｅ１％１ｃｍ：３４８．７，肩峰：２５６ｎｍ，ｐＩ：３．５，对大肠杆菌、金黄葡萄球菌、巨大芽孢杆菌及枯草杆菌有较强的抑菌活性 From the alkaline extract of leaves of Platanusorientalis, a dark brown pigment has been isolated and purified by methods of silica gel, Al 2O 3 and sephadex G 25 chromatographys. The pigment with mp. 282.59～283.29℃, λ KOH max 215nm, Ε 1% 1cm 348.7, shoulder peck 256 nm, and pI 3.5 has effective inhibitory activities against Escherichia coli,Staphylococcusaureaus,Bacillus megatherium,and Bacillus subtilis. 悬铃木 色素 抗菌活性 Platanus orientalis dark brown pigment antimicrobial activity Q946 国家自然科学基金(61672102) 1996-06-01 2021-04-01 6