| Title |
Innovative method for rice straw valorization into nanocellulose, lignin and silica |
| ID_Doc |
24575 |
| Authors |
Ly, TB; Tran, NTT; Pham, CD; Nguyen, DDB; Mai, PT; Le, PK |
| Title |
Innovative method for rice straw valorization into nanocellulose, lignin and silica |
| Year |
2024 |
| Published |
|
| DOI |
10.1016/j.biteb.2024.101804 |
| Abstract |
Nanocellulose was extracted from rice straw biomass using alkaline pretreatment, H2O2 bleaching and acidic hydrolysis. A novel solution was come up with where the acidic liquid after hydrolysis was used for adjusting the pH of the black liquor from pretreatment to produce lignin- and silica-rich precipitates as functional byproducts. Following this method, crystalline nanocellulose with length < 300 nm and high crystallinity of >80 % can be attained. Silica-rich precipitate was refined using a low temperature thermal treatment process for increased silica purity while maintaining a high degree of amorphous (> 75 %). Economic assessment shows that only around $23 is needed to produce 920 g of crystalline nanocellulose, 1.2 kg of highly amorphous bio-silica and 330 g of soda lignin. Such results show that these novel production methods have high economic efficiencies and should be considered for scaling up or be studied for similar biomass materials. |
| Author Keywords |
Rice straw; Nanocellulose; Circular economy; Biorefinery; Bio-silica; Lignin |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Emerging Sources Citation Index (ESCI) |
| EID |
WOS:001288571300001 |
| WoS Category |
Biotechnology & Applied Microbiology; Energy & Fuels; Environmental Sciences |
| Research Area |
Biotechnology & Applied Microbiology; Energy & Fuels; Environmental Sciences & Ecology |
| PDF |
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