Autor: |
Kait Kaarel Puss, Peeter Paaver, Mart Loog, Siim Salmar |
Jazyk: |
angličtina |
Rok vydání: |
2024 |
Předmět: |
|
Zdroj: |
Ultrasonics Sonochemistry, Vol 111, Iss , Pp 107071- (2024) |
Druh dokumentu: |
article |
ISSN: |
1350-4177 |
DOI: |
10.1016/j.ultsonch.2024.107071 |
Popis: |
Forest biorefineries provide multiple new avenues for applied research. The main concept lies in the malleability of the processes and their stepwise organization. The core element of the biorefinery concept addressed in the present study is the pretreatment step; here, wood biomass is converted into free hemicellulosic sugars, lignin and cellulose. In traditional approaches, the pretreatment step is a starting point for isolating and separating lignin or cellulose through different processes. In this study, instead of performing any separation, a lignin-cellulose mixture was used as its own material, and the effects of ultrasound treatment with a probe system at 20 kHz, with various amplitude, sonication time and dry matter content were investigated with the aim of assessing the formation of a nanocellulose structure with a high lignin content (>30 %) and investigating the stability of the lignin-cellulose mixture under aqueous conditions. We demonstrated the importance of dry matter content for the specific particle size and water retention values for this mixture. US treatment of lignin-cellulose mixtures |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
|