Long-chain rubber-like polyisoprenoid alcohols in leaves of Lumnitzera racemosa
Long-chain rubber-like polyisoprenoid alcohols in leaves of Lumnitzera racemosa
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Lumnitzera racemosa 叶中的长链橡胶状聚异戊二烯醇
DOI：
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发表时间：
1994
影响因子：
6.5
通讯作者：
Yasuyuki Tanaka
中科院分区：
文献类型：
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作者：
E. Skoczylas;E. Swiezewska;T. Chojnacki;Yasuyuki Tanaka
总状光合欢的叶子含有约1-2%(干重)的长链聚顺-戊烯醇，由15-100个异戊二烯单元组成。在这些多异戊二烯醇的天然混合物中，可以区分出两个家族：一个是由17个异戊二烯单元组成的主要前言。第二个由大约80个聚戊烯醇类分子组成，最多100个异戊二烯单元。在这第二个家族中，占主导地位的前驱体由25-30个异戊二烯单元组成，由50-100个异戊二烯单元组成的前驱体占很高的比例，因此这一脂基团类似于天然橡胶。总状花序的长链聚戊烯醇为双反式聚顺式。它们以中等链长脂肪酸的酯形式出现。
Leaves of Lumnitzera racemosa contain ca. 1-2% (dry weight) of long-chain poly-cis-prenols composed of 15-100 isoprene units. In the natural mixture of these polyisoprenoid alcohols two families can be distinguished: one with dominating prenologue composed of 17 isoprene units. The second one consists of ca. 80 molecular species of polyprenols built up to 100 isoprene units. In this second family the dominating prenologues are composed of 25-30 isoprene units and prenologues composed of 50-100 isoprene units form a high proportion, thus making this lipid faction similar to natural rubber. The long-chain polyprenols of L. racemosa are of di-trans poly-cis type. They occur as esters of medium chain length fatty acids