云南先峰中新世木乃伊化木化石α-纤维素的提取  

Extracting the α-cellulose from Miocene mummified fossil woods of Xianfeng,Yunnan

作　　者：任军博 杨思宇 苏涛[2] 臧利斌 全成 

机构地区：[1]吉林大学地球科学学院,长春130061 [2]中国科学院西双版纳热带植物园,云南西双版纳650223 [3]吉林大学地球探测科学与技术学院,长春130026

出　　处：《世界地质》2017年第3期1001-1007,共7页World Geology

基　　金：国家自然科学基金项目(41772009)资助

摘　　要：本文对云南先锋中新世木乃伊化木化石进行α-纤维素实验提取,以验证化石纤维素的可得性。实验利用有机溶剂分离、碱液分离、无机酸分离等方法分别对研究区5件木乃伊化化石样品进行处理,并采用红外光谱检测方法与现代木材α-纤维素和国际标准α-纤维素进行对比试验。实验结果显示,3种提取方法均可以从化石木材中提取出α-纤维素,但过程特征各有不同。其中,有机溶剂分离实验过程耗时最长,碱液分离方法样品损失最大。相比之下,无机酸分离方法对于木乃伊化木化石α-纤维素提取的效率最高。This study aimed to verify the availability of fossil cellulose by extracting α-cellulose from the Miocene mummified fossil woods from Xianfeng of Yunnan. In this experiment,five samples in the studied area were first processed by organic solvent separation,alkaline solution separation and inorganic acid separation,and then compared with modern wood α-cellulose and international standard α-cellulose with the help of infrared spectrum detection technique. As a result,it showed that all these three extraction methods could extract α-cellulose from fossil woods,but the individual characteristics were different. Among them,the organic solvent separation experiment process took the longest time,and the alkaline solution separation had the largest sample loss. Whereas the inorganic acid separation method was the most efficient one for α-cellulose extraction from mummified fossil woods.

关 键 词：木乃伊化木化石 Α-纤维素 提取实验 中新世 先峰 云南 

分 类 号：Q914.21[天文地球—古生物学与地层学] P589[生物学—古生物学]