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| Study on the In-situ Bacterial Cellulose Synthesis Modification of Sludge Based on Distiller’s Grains Enzymatic Hydrolysate and Its Application as a Paper Filler |
| Received:January 21, 2026 Revised:February 06, 2026 |
| DOI：10.11981/j.issn.1000-6842.2026.02.125 |
| Key Words:bacterial cellulose;in-situ synthesis;distillers’ grains enzymatic hydrolysate;river silt modification;papermaking filler |
| Fund Project:无锡市建设系统科技项目（wx202502zd）。 |
| Author Name | Affiliation | Postcode | | WU Zhiyi* | 1School of Mechanical Engineering， Jiangsu Key Lab of Advanced Food Manufacturing Equipment & Technology， Jiangnan University， Wuxi， Jiangsu Province， 214122 | 214122 | | WEI Lingjun | 1School of Mechanical Engineering， Jiangsu Key Lab of Advanced Food Manufacturing Equipment & Technology， Jiangnan University， Wuxi， Jiangsu Province， 214122 | 214122 | | ZHOU Jiawei | 1School of Mechanical Engineering， Jiangsu Key Lab of Advanced Food Manufacturing Equipment & Technology， Jiangnan University， Wuxi， Jiangsu Province， 214122 | 214122 | | YAN Xinchi | 1School of Mechanical Engineering， Jiangsu Key Lab of Advanced Food Manufacturing Equipment & Technology， Jiangnan University， Wuxi， Jiangsu Province， 214122 | 214122 | | SUN Hao* | 1School of Mechanical Engineering， Jiangsu Key Lab of Advanced Food Manufacturing Equipment & Technology， Jiangnan University， Wuxi， Jiangsu Province， 214122
2Tsinghua Suzhou Environmental Innovation Research Institute， Suzhou， Jiangsu Province， 215000 | 215000 | | WANG Changkun | 1School of Mechanical Engineering， Jiangsu Key Lab of Advanced Food Manufacturing Equipment & Technology， Jiangnan University， Wuxi， Jiangsu Province， 214122 | 214122 | | DU Tiantian | 1School of Mechanical Engineering， Jiangsu Key Lab of Advanced Food Manufacturing Equipment & Technology， Jiangnan University， Wuxi， Jiangsu Province， 214122 | 214122 |
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| Abstract: |
| In this study， enzymatic hydrolysate of distiller’s grains was used to drive kombucha bacteria to in-situ construct bacterial cellulose (BC) networks on the surface of river silt， to prepare a green and low-cost papermaking fillers， and investigating its application effect in paper. The results showed that the composite filler (EW-BC/SP) prepared with the distiller’s grains enzymatic hydrolysate medium achieved a BC loading of 109.1 mg/g， exhibiting an excellent BC loading capacity with superior in-situ modification performance compared with the traditional medium group (68.6 mg/g). When the filler dosage was fixed at 40%， the retention rate of EW-BC/SP in paper reached as high as 88.2%， which was significantly higher than that of SP group (54.7%). The tensile index of the paper added EW-BC/SP reached 31.2 N·m/g， which was 30.6% higher than that of SP group， and the burst index was 1.81 kPa·m²/g， showing basically no difference from SP group， and demonstrated the remarkable enhancement effect of the BC network. |
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