MECHANISM OF FORMATION AND CHEMICAL-STRUCTURE OF COORONGITE .1. ROLE OF THE RESISTANT BIO-POLYMER AND OF THE HYDROCARBONS OF BOTRYOCOCCUS-BRAUNII - ULTRASTRUCTURE OF COORONGITE AND ITS RELATIONSHIP WITH TORBANITE

被引：45

作者：

DUBREUIL, C ^{[1
]}

DERENNE, S ^{[1
]}

LARGEAU, C ^{[1
]}

BERKALOFF, C ^{[1
]}

ROUSSEAU, B ^{[1
]}

机构：

[1] ECOLE NORM SUPER,BIOMEMBRANES & SURFACES CELLULAIRES VEGETALES LAB,CNRS,UA 311,F-75230 PARIS 05,FRANCE

来源：

ORGANIC GEOCHEMISTRY | 1989年 / 14卷 / 05期

关键词：

Biopolymers; -; Hydrocarbons;

D O I：

10.1016/0146-6380(89)90034-X

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Coorongite was collected on the shores of the Darwin River Reservoir (Australia), where a profuse growth of Botryococcus braunii B race occurs. The products generated on pyrolysis (400°C) of the Coorongite (hydrocarbons, ketones and fatty acids) were compared to those from the resistant biopolymer, PRB B, of B. braunii B race. This biopolymer is located in the outer cell walls which build up the matrix of the colonies. The spectroscopic features (FTIR, solid state 13C NMR) of Coorongite and of PRB B were also compared both on unheated materials and on pyrolysis residues. These observations indicated that the 'non labile' and predominant fraction of Coorongite (c. 75% of the bitumen-free sample) is composed of selectively preserved PRB B.

引用

页码：543 / 553

页数：11

共 46 条

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