In vitro simulation studies of silica deposition induced by lignin from rice
| Autor: | Jiang-yu Fang, Xue-long Ma |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Spectrophotometry
Infrared Biotechnological Engineering Silicon Silicon dioxide Analytical chemistry chemistry.chemical_element Infrared spectroscopy macromolecular substances Lignin complex mixtures General Biochemistry Genetics and Molecular Biology chemistry.chemical_compound Microscopy Electron Transmission Spectrophotometry medicine General Pharmacology Toxicology and Pharmaceutics General Veterinary medicine.diagnostic_test Precipitation (chemistry) Borax fungi technology industry and agriculture food and beverages Oryza General Medicine Silicon Dioxide Chemical engineering chemistry Transmission electron microscopy Spectrophotometry Ultraviolet |
| Zdroj: | Journal of Zhejiang University SCIENCE B. 7:267-271 |
| ISSN: | 1862-1783 1673-1581 |
| Popis: | To reveal the possible mechanism of silica deposition in higher plants, lignin was isolated from rice straw following a modified method to conduct a simulation experiment in vitro. UV and infrared absorption spectra showed that the substance had the unique characteristics of pure lignin. The presence of silicon in the precipitation was revealed by TEM (transmission electron microscopy) with EDXA (energy dispersive X-ray analysis) device. It was found that in the borax solution where lignin precipitation occurred silica-lignin co-precipitation was produced but not in the DMSO solution where lignin was broken into its composition compounds and did not precipitate. This means that it is macromolecular lignin itself but not its compounds that could induce silica deposition in higher plants. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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