鸡屎藤中三种含硫环烯醚萜苷与含伯胺基化合物的呈色性能 Ⅰ.含硫环烯醚萜苷的制备、呈色条件和呈色性能研究  

Research on The Color-forming Property of Three Sulfur-containing Iridoid-glucoside from Paederia scandens (Lour) Merrill(Rubiaceae) with Amine-containing Compounds I.Preparation of Iridoids,Color-formation Condition and Property

作　　者：虎亚芳[1] 陈效[1] 丁克毅[1] 刘军[1] 

机构地区：[1]西南民族大学化学与环境保护工程学院,四川成都610041

出　　处：《皮革科学与工程》2013年第1期5-10,共6页Leather Science and Engineering

基　　金：国家自然科学基金项目(21176202)

摘　　要：环烯醚萜是一类可以与含伯胺基的化合物发生交联呈色作用,在染色机理上与现有各类染料有本质区别的"交联呈色染料"。本文从鸡屎藤中制备了三种含硫的环烯醚萜苷,研究了它们与含伯氨基化合物的呈色反应条件,并初步推测了其呈色机理。结果表明:(1)与前期研究的不含硫的环烯醚萜(如京尼平)不同,这三种含硫环烯醚萜苷与含伯胺基化合物的交联呈色反应必须以水解和呈色反应同浴的方式进行;其中鸡屎藤苷和鸡屎藤酸甲酯即使不用β-葡萄糖苷酶的催化水解,也能在弱酸碱性条件下与含伯胺基化合物呈色;(2)三种含硫环烯醚萜苷与可溶性的牛血清蛋白和皮粉等蛋白质纤维反应所呈现的颜色,与它们和甲胺反应时生成的颜色相同,这说明环烯醚萜苷自身的分子结构决定着生成的颜色,这一特性与以前研究的不含硫的环烯醚萜是相同的。(3)含硫环烯谜萜苷在与含伯氨基化合物呈色时,可能是含硫环烯醚萜苷在伯氨基和β-葡萄糖苷酶的协同催化下于酸/碱介质中胺解形成色素中间体后,再发生中间体的聚合而产生颜色。Crosslinking- coloration could undertake between iridoids and amine -containing compounds, and this dyeing mechanism is basically different with all of those dyestuffs practiced at present. In this paper, three sulfur - containing iridoids were prepared from Paederia scandens （Lour） Merrill （Rubiaceae） , the reaction condition and the color- forming mechanism of iridoids with amine - containing compounds were investigated. The results indicated that ： （ 1 ） For these sulfur - containing iridoid glycosides, enzymatic hydrolysis and co/or - forming reaction with methylamine could and must be carried out in one solution simuhaneously. Further more, even without the presence of β - glucosidase, color - forming reaction could undertake between methylamine and paederoside or paederosidic acid methyl ester under mild acidic or basic solution. （2） The resultant color formed by each iridoid glycoside reacting with BSA and each protein fiber （ e. g. , hidepowder, silk and white hair） was the same as that formed by each iridoid glycoside reacting with methylamine. The result confirmed that, the molecular structure of iridoid compounds was the dominate factor for the resultant＇ s color. （3） The mechanism of this color - forming reaction might be that, the presence of methylamine had a cooperative effect with β -glucosidase, sulfur - containing iridoid glycosides were transferred to color - intermediates, then the intermediates were polymerized to form colorants.

关 键 词：含硫环烯醚萜 交联呈色染料 含伯胺基化合物 呈色性能 

分 类 号：R284[医药卫生—中药学]