Lignin Transformation of One-Year-Old Plants During Anaerobic Digestion (AD)
| Autor: | Hanna Waliszewska, Magdalena Zborowska, Wojciech Czekała, Bogusława Waliszewska, A Stachowiak-Wencek |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Polymers and Plastics 020209 energy Biomass biopolymers 02 engineering and technology macromolecular substances 01 natural sciences complex mixtures Article lcsh:QD241-441 chemistry.chemical_compound Methane fermentation lcsh:Organic chemistry 0202 electrical engineering electronic engineering information engineering Lignin Food science biology biomass methane fermentation fungi technology industry and agriculture food and beverages General Chemistry Miscanthus biology.organism_classification Sorghum Transformation (genetics) Anaerobic digestion chemistry miscanthus Fermentation sorghum 010606 plant biology & botany |
| Zdroj: | Polymers Volume 11 Issue 5 Polymers, Vol 11, Iss 5, p 835 (2019) |
| ISSN: | 2073-4360 |
| DOI: | 10.3390/polym11050835 |
| Popis: | The aim of the research is to identify the changes which occur in lignin from miscanthus and sorghum, one of the main biomass components, as a result of an anaerobic digestion (AD) process. The percentage content and structure of lignin before and after the fermentation process were analysed using biomass harvested in two growing periods&mdash before and after vegetation. It was shown that plants at different developmental stages differ in lignin content. During plant growth, the lignin structure also changes&mdash the syringyl-to-guaiacyl ratio (S/G) increases, whereas the aliphatic and aromatic structure ratio (Al/Ar) decreases. The AD process leads to an increase in percentage lignin content in cell walls, and the increase is higher for plants harvested during vegetation. It has been shown in studies that the methane fermentation of miscanthus and sorghum produces waste containing a large amount of lignin, the structure of which is altered relative to native lignin. The quantity and the new, simplified structure of lignin create new possibilities for using this aromatic polymer. |
| Databáze: | OpenAIRE |
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