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Xu C, Li J, Yuan Q, Liu N, Zhang X, Wang P, Gao Y. Effects of different fermentation assisted enzyme treatments on the composition, microstructure and physicochemical properties of wheat straw used as a substitute for peat in nursery substrates. BIORESOURCE TECHNOLOGY 2021; 341:125815. [PMID: 34454234 DOI: 10.1016/j.biortech.2021.125815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 06/13/2023]
Abstract
To solve the central problems caused by traditional composting treatments, such as long-time consumption and poor regulation effects, this study used three fermentation methods and four enzymes to develop rapid and directional regulation methods to convert wheat straw into a suitable substrate. The results showed that the mixed anaerobic method led to better pH (4.39-5.75) and EC values (1.27-1.89 mS/cm) in the straw substrates, while the aerobic method retained more nutrients and increased lignin and cellulose contents by 5.07-8.04% and 1.52-3.32%. The cellulase mixed with hemicellulase or laccase treatments all increased the crystallinity by 0.45-7.23%. The TG/DTG results showed that all treatments decreased the initial straw glass transition temperature, particularly when using the mixed anaerobic method, with decreases of 10.63-25.48 °C. Overall, mixed anaerobic fermentation and multiple enzymes, including cellulase, have been suggested as alternative biological modification methods for straw substrates.
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Affiliation(s)
- Chao Xu
- College of Engineering, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China
| | - Jun Li
- College of Engineering, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China
| | - Qiaoxia Yuan
- College of Engineering, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China.
| | - Nian Liu
- College of Engineering, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China
| | - Xin Zhang
- College of Engineering, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China
| | - Panpan Wang
- College of Engineering, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, China
| | - Yong Gao
- Wuhan Optics Valley Bluefire New Energy Co., Ltd., Wuhan 430000, China
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Skorb EV, Möhwald H. Ultrasonic approach for surface nanostructuring. ULTRASONICS SONOCHEMISTRY 2016; 29:589-603. [PMID: 26382299 DOI: 10.1016/j.ultsonch.2015.09.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 08/24/2015] [Accepted: 09/03/2015] [Indexed: 05/08/2023]
Abstract
The review is about solid surface modifications by cavitation induced in strong ultrasonic fields. The topic is worth to be discussed in a special issue of surface cleaning by cavitation induced processes since it is important question if we always find surface cleaning when surface modifications occur, or vice versa. While these aspects are extremely interesting it is important for applications to follow possible pathways during ultrasonic treatment of the surface: (i) solely cleaning; (ii) cleaning with following surface nanostructuring; and (iii) topic of this particular review, surface modification with controllably changing its characteristics for advanced applications. It is important to know what can happen and which parameters should be taking into account in the case of surface modification when actually the aim is solely cleaning or aim is surface nanostructuring. Nanostructuring should be taking into account since is often accidentally applied in cleaning. Surface hydrophilicity, stability to Red/Ox reactions, adhesion of surface layers to substrate, stiffness and melting temperature are important to predict the ultrasonic influence on a surface and discussed from these points for various materials and intermetallics, silicon, hybrid materials. Important solid surface characteristics which determine resistivity and kinetics of surface response to ultrasonic treatment are discussed. It is also discussed treatment in different solvents and presents in solution of metal ions.
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Affiliation(s)
- Ekaterina V Skorb
- Max Planck Institute of Colloids and Interfaces, Wissenschaftspark Golm, Am Mühlenberg 1, Golm 14424, Germany.
| | - Helmuth Möhwald
- Max Planck Institute of Colloids and Interfaces, Wissenschaftspark Golm, Am Mühlenberg 1, Golm 14424, Germany
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Shi W, Li S, Jia J, Zhao Y. Highly Efficient Conversion of Cellulose to Bio-Oil in Hot-Compressed Water with Ultrasonic Pretreatment. Ind Eng Chem Res 2013. [DOI: 10.1021/ie3024966] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wen Shi
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
| | - Sining Li
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
| | - Jingfu Jia
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
| | - Yaping Zhao
- School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
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Skorb EV, Baidukova O, Goyal A, Brotchie A, Andreeva DV, Möhwald H. Sononanoengineered magnesium–polypyrrole hybrid capsules with synergetic trigger release. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30768e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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