Cellulose最新文献

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Preparation of porous TEMPO-oxidized cellulose nanofiber (TOCNF) composites via Pickering-emulsion template for adsorption of aromatic pollutants 酸洗-乳液模板法制备多孔tempo氧化纤维素纳米纤维(TOCNF)复合材料对芳香族污染物的吸附
IF 4.9 2区 工程技术
Cellulose Pub Date : 2025-05-06 DOI: 10.1007/s10570-025-06539-2
Zheng Yang, Huazheng Zhao, Yao Huang, Hui Liu
{"title":"Preparation of porous TEMPO-oxidized cellulose nanofiber (TOCNF) composites via Pickering-emulsion template for adsorption of aromatic pollutants","authors":"Zheng Yang,&nbsp;Huazheng Zhao,&nbsp;Yao Huang,&nbsp;Hui Liu","doi":"10.1007/s10570-025-06539-2","DOIUrl":"10.1007/s10570-025-06539-2","url":null,"abstract":"<div><p>TEMPO-oxidized cellulose nanofiber (TOCNF) based materials have garnered significant attention as functional adsorbents but high hydrophilicity restricts their application. In this study, three different synthetic polymers, polydimethylsiloxane (PDMS), polymethylmethacrylate (PMMA) and polystyrene (PS) were incorporated into the TOCNF network via Pickering emulsion templates to create porous composite materials for adsorption of typical aromatic pollutants (nitrobenzene, chlorobenzene and naphthalene). The effects of oil phase types, TOCNF concentration and oil/water ratios on emulsion stability, physicochemical properties and adsorption performance of the resultant composites were thoroughly investigated. The composites exhibited a macroporous structure with high porosity exceeding 80% and densities ranging from 0.084 to 0.226 g/cm<sup>3</sup>. Compared to pure TOCNF aerogel, the composites demonstrated significantly improved hydrophobicity, with the PS composite achieving the highest contact angle of 108.9°. Additionally, their mechanical strength and adsorption capacity for aromatic pollutants were markedly enhanced. Kinetic modeling results indicated that the PDMS composites showed the fastest adsorption rate. Freundlich isothermal modeling results indicated that the PS composite had the highest adsorption capacity, likely due to π-π interactions, which increased further at lower TOCNF concentration and lower oil/water ratio. All adsorption processes were spontaneous and exothermic physical processes. The adsorbents could be recycled for at least five cycles using ethanol as desorbing agent. This study highlights the potential of Pickering emulsion in developing novel functional adsorbents from natural biomass resources.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 7","pages":"4289 - 4311"},"PeriodicalIF":4.9,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction: Multifunctional conducting cellulose acetate–graphene oxide–La nanomembrane for waste water treatment and energy production 更正:用于废水处理和能源生产的多功能导电醋酸纤维素-氧化石墨烯- la纳米膜
IF 4.9 2区 工程技术
Cellulose Pub Date : 2025-05-06 DOI: 10.1007/s10570-025-06546-3
Minakshi Pandey, Aayasha Negi, Mohamed Taha Yassin, Fatimah O. Al-Otibi, Khalid Maniah, Ramchander Merugu
{"title":"Correction: Multifunctional conducting cellulose acetate–graphene oxide–La nanomembrane for waste water treatment and energy production","authors":"Minakshi Pandey,&nbsp;Aayasha Negi,&nbsp;Mohamed Taha Yassin,&nbsp;Fatimah O. Al-Otibi,&nbsp;Khalid Maniah,&nbsp;Ramchander Merugu","doi":"10.1007/s10570-025-06546-3","DOIUrl":"10.1007/s10570-025-06546-3","url":null,"abstract":"","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 7","pages":"4287 - 4288"},"PeriodicalIF":4.9,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced hydrolysis of lignocellulosic waste using highly efficient ozone pretreatment in a venturi system: a comparison of free and strainer models 在文丘里系统中使用高效臭氧预处理增强木质纤维素废物的水解:自由和过滤器模型的比较
IF 4.9 2区 工程技术
Cellulose Pub Date : 2025-05-06 DOI: 10.1007/s10570-025-06536-5
Barak Halpern, Asaf Pras, Manohara Halanur, Yoram Gerchman, Hadas Mamane
{"title":"Enhanced hydrolysis of lignocellulosic waste using highly efficient ozone pretreatment in a venturi system: a comparison of free and strainer models","authors":"Barak Halpern,&nbsp;Asaf Pras,&nbsp;Manohara Halanur,&nbsp;Yoram Gerchman,&nbsp;Hadas Mamane","doi":"10.1007/s10570-025-06536-5","DOIUrl":"10.1007/s10570-025-06536-5","url":null,"abstract":"<div><p>This study investigates ozone pretreatment processes for lignocellulosic waste, a potentially more sustainable alternative for bioethanol, biogas, and bioplastics production. Traditional methods are often energy-intensive and generate pollutants, limiting large-scale applications. We tested two pretreatment methods using cardboard as a model. The ozone was applied using a venturi system in two settings: the ‘Strainer model’, where ground cardboard is enclosed in a mesh strainer, and the ‘Free model’, where the cardboard circulates freely in the reactor. The ‘Free model’ showed 100% ozone consumption, significantly higher than the 70% in the ‘Strainer model’, indicating better ozone accessibility and reactivity, and eliminating the need for ozone stripping in the off-gas, offering safety and cost benefits. Thermogravimetric and chemical analysis showed that the ‘Free model’ reduced lignin and impurities and increase holocellulose in the biomass, while increasing the streaming potential. This pretreatment significantly enhanced hydrolysis efficiency, achieving a 65% sugar yield, approaching the manufacturer’s theoretical maximum of the enzyme. In comparison, the ‘Strainer model’ and untreated samples yielded 40% and 43%, respectively. These results were corroborated by XRD and FTIR analysis. The increased surface area and direct ozone contact in the ‘Free model’ are key mechanisms driving these improvements. These findings suggest that the ‘Free model’ has the potential to serve as a more sustainable pretreatment method; however, further evaluation is needed, particularly in comparison to industrial-scale alternatives and their energy consumption, to fully assess its environmental impact.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 7","pages":"4213 - 4233"},"PeriodicalIF":4.9,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10570-025-06536-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable strategies for the valorization of cotton and cotton blended waste: pathways to circular economy 棉花和棉混纺废物增值的可持续战略:循环经济之路
IF 4.9 2区 工程技术
Cellulose Pub Date : 2025-05-03 DOI: 10.1007/s10570-025-06524-9
Tarun Grover, Lijing Wang, Rajkishore Nayak, Rajiv Padhye, Asimananda Khandual
{"title":"Sustainable strategies for the valorization of cotton and cotton blended waste: pathways to circular economy","authors":"Tarun Grover,&nbsp;Lijing Wang,&nbsp;Rajkishore Nayak,&nbsp;Rajiv Padhye,&nbsp;Asimananda Khandual","doi":"10.1007/s10570-025-06524-9","DOIUrl":"10.1007/s10570-025-06524-9","url":null,"abstract":"<div><p>This research explores the comparative efficacy of mechanical, chemical, and biological recycling methods for cotton and cotton-based blends, focusing on their processes, challenges, and implications for sustainability. Through detailed analyses of extant literature, this study identified mechanical recycling as a widely implemented method due to its simplicity and cost-effectiveness but notes its limitations, such as fiber degradation, inappropriate for some fibers, and contamination from mixed materials. Chemical recycling is an effective method for recovering fibers that are unsuitable for mechanical recycling, offering high recovery rates and preventing waste being landfilled. Despite its potential, this approach faces challenges such as high energy requirements, financial constraints, and reliance on harsh chemicals. In contrast, biological recycling is emerging as an ecofriendly alternative with the potential to use enzymes for targeted degradation; however, it requires further advancements in enzyme specificity and process scalability. This review emphasizes the need for hybrid models combining these methods to address their individual limitations, such as integrating technological sorting for mechanical recycling or developing non-toxic green solvents for chemical recycling. Furthermore, Life Cycle Assessment comparisons reveal the environmental and financial benefits of optimizing these methods for industrial application, with implications for policymakers and industry stakeholders. By advancing these recycling technologies and aligning sustainable development goals, the cotton textile industry can significantly reduce waste, conserve resources, and foster sustainable practices in waste valorization.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 7","pages":"4077 - 4100"},"PeriodicalIF":4.9,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10570-025-06524-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable production of cellulose nanofibers aerogels with high purity from sorghum bagasse waste for oil/water separation 以高粱甘蔗渣为原料可持续生产高纯度纤维素纳米纤维气凝胶,用于油水分离
IF 4.9 2区 工程技术
Cellulose Pub Date : 2025-04-30 DOI: 10.1007/s10570-025-06534-7
Hongli Guo, Yong Liu, Xinghua Zhang, Qi Zhang, Jianguo Liu, Longlong Ma, Lungang Chen
{"title":"Sustainable production of cellulose nanofibers aerogels with high purity from sorghum bagasse waste for oil/water separation","authors":"Hongli Guo,&nbsp;Yong Liu,&nbsp;Xinghua Zhang,&nbsp;Qi Zhang,&nbsp;Jianguo Liu,&nbsp;Longlong Ma,&nbsp;Lungang Chen","doi":"10.1007/s10570-025-06534-7","DOIUrl":"10.1007/s10570-025-06534-7","url":null,"abstract":"<div><p>Aerogels, recognized for their 3D porous structure and high porosity, hold significant potential for oil–water separation. So many preparations of aerogels have been widely reported. It is still challenging to prepare high porosity efficiently and cost-effectively. This study presents a green, simple, and efficient approach to aerogel production, using cellulose and cellulose nanofibers from sorghum bagasse waste as the framework, with polyvinyl alcohol as the crosslinking agent, lead formation of hydrogen bonds to form a stable three-dimensional network structure. Ultrasonic treatment significantly enhanced their aspect ratio. The resulting aerogel features a low density (&lt; 6.3 kg/m<sup>3</sup>) and high porosity (&gt; 99.4%). After hydrophobic modification with methyltrimethoxysilane through chemical vapor deposition, the aerogel achieves excellent hydrophobic properties, with a water contact angle of 146°. It demonstrates strong absorption capabilities for oil and organic solvents, with an oil absorption capacity of 89 g/g. Importantly, the aerogel retains its high absorption capacity after ten cycles, highlighting its excellent reusability. In conclusion, this aerogel represents a promising solution for valorizing Sorghum bagasse (BG) waste and shows significant potential in oil–water separation applications.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 7","pages":"4481 - 4501"},"PeriodicalIF":4.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multilayer paper composites interconnected by oblong cuts and sodium silicate adhesive reinforced with cellulose nanofibrils derived from cardboard waste 多层纸复合材料相互连接的长方形切割和硅酸钠粘合剂增强纤维素纳米纤维从纸板废料
IF 4.9 2区 工程技术
Cellulose Pub Date : 2025-04-30 DOI: 10.1007/s10570-025-06538-3
Douglas Lamounier Faria, Laércio Mesquita Junior, Rafael Carvalho do Lago, Julio Soriano, Mário Guimarães Júnior, Natal Junio Pires, Augusto Cesar da Silva Bezerra, Thiago Silva Ramos, Leticia Catta Preta da Silva, Lourival Marin Mendes, Anand Ramesh Sanadi, Thiago de Paula Protásio, Gustavo Henrique Denzin Tonoli
{"title":"Multilayer paper composites interconnected by oblong cuts and sodium silicate adhesive reinforced with cellulose nanofibrils derived from cardboard waste","authors":"Douglas Lamounier Faria,&nbsp;Laércio Mesquita Junior,&nbsp;Rafael Carvalho do Lago,&nbsp;Julio Soriano,&nbsp;Mário Guimarães Júnior,&nbsp;Natal Junio Pires,&nbsp;Augusto Cesar da Silva Bezerra,&nbsp;Thiago Silva Ramos,&nbsp;Leticia Catta Preta da Silva,&nbsp;Lourival Marin Mendes,&nbsp;Anand Ramesh Sanadi,&nbsp;Thiago de Paula Protásio,&nbsp;Gustavo Henrique Denzin Tonoli","doi":"10.1007/s10570-025-06538-3","DOIUrl":"10.1007/s10570-025-06538-3","url":null,"abstract":"<div><p>Multiple-layered composites are produced industrially by pressing paper layers together with a sodium silicate adhesive. They have been utilized in a variety of technological applications, including as formwork for reinforced concrete in civil construction and in the food, textile, and pyrotechnic industries. However, the major limitation is the low strength of the adhesive. To overcome this challenge, we propose the reinforcement of sodium silicate with cellulose nanofibrils (CNFs), as well as the use of paper layers with longitudinal cuts, innovating in a composite with interconnected glue lines. Thus, the objective of this study was to evaluate the mechanical effect of paper layers containing longitudinal cuts and adhesives reinforced with 0.5% CNFs. The composites were produced with 20 layers of recycled Kraft paper and 50 g/m<sup>2</sup> of nanoreinforced sodium silicate per glue line. The pressing effort applied to the composites by a sliding cylinder was equal to 4.3 MPa. In the composites with paper layers with longitudinal cuts, the modulus of rupture was 55.9 MPa, whereas in the control sample, it was 38.8 MPa. For these same configurations, the modulus of elasticity was 4197 and 3473 MPa. The incorporation of CNFs in the adhesive provided greater wettability on the paper surface, with greater penetration and formation of rigid bonds. With respect to the unreinforced product and the composite with the adhesive reinforcement, the toughness increased from 0.0023 to 0.0045 N mm/mm<sup>3</sup>. This technique to produce paper composites using nanomaterials has proven to be efficient in obtaining a product with better performance.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 7","pages":"4525 - 4552"},"PeriodicalIF":4.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Co-substrate fermentation of lignocellulose with added glucose and xylose to increase production of poly (β-l-malic acid) 添加葡萄糖和木糖的木质纤维素共底物发酵提高聚β-l-苹果酸产量
IF 4.9 2区 工程技术
Cellulose Pub Date : 2025-04-30 DOI: 10.1007/s10570-025-06533-8
Yutian Zhang, Dongdong Zeng, Jianing Li, Xiaojun Ma, Dongna Li, Yachao Li
{"title":"Co-substrate fermentation of lignocellulose with added glucose and xylose to increase production of poly (β-l-malic acid)","authors":"Yutian Zhang,&nbsp;Dongdong Zeng,&nbsp;Jianing Li,&nbsp;Xiaojun Ma,&nbsp;Dongna Li,&nbsp;Yachao Li","doi":"10.1007/s10570-025-06533-8","DOIUrl":"10.1007/s10570-025-06533-8","url":null,"abstract":"<div><p>Co-substrate fermentation has become an essential approach to achieving high-efficiency and low-cost production of poly (β-<span>l</span>-malic acid) (PMA). Herein, sustainable rubberwood (<i>Hevea brasiliensis</i>) hydrolysate (RWH) was co-fermented by <i>A. pullulans</i> to synthesize PMA using glucose and xylose as co-substrate carbon sources. Moreover, vitamin B was explored as nutrient supplementation in this study. Results showed that compared with the single RWH substrate, the PMA production of co-substrate fermentation increased by 38–52%. Furthermore, the addition of VB<sub>6</sub> promoted the utilization of substrates and shortened the fermentation cycle of PMA. During the scale-up fermentation, the PMA yield reached 0.50–0.54 g/g. Compared with traditional glucose culture medium, co-substrate fermentation improved the conversion rate of carbon sources and reduced PMA production cost by 14.9–36.6%. This work provides a new path for high-efficiency and economical industrial fermentation technology of PMA.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 7","pages":"4235 - 4248"},"PeriodicalIF":4.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Revised solid-state 13C NMR peak assignments for cellulose II and cellulose Iβ from two-dimensional double-quantum dipolar recoupling experiments 修正了二维双量子偶极重偶联实验中纤维素II和纤维素Iβ的固态13C核磁共振峰分配
IF 4.9 2区 工程技术
Cellulose Pub Date : 2025-04-30 DOI: 10.1007/s10570-025-06527-6
Darren H. Brouwer, Janelle G. Mikolajewski
{"title":"Revised solid-state 13C NMR peak assignments for cellulose II and cellulose Iβ from two-dimensional double-quantum dipolar recoupling experiments","authors":"Darren H. Brouwer,&nbsp;Janelle G. Mikolajewski","doi":"10.1007/s10570-025-06527-6","DOIUrl":"10.1007/s10570-025-06527-6","url":null,"abstract":"<div><p>The crystalline forms of native cellulose (cellulose I<i>α</i> and cellulose I<i>β</i>) and regenerated or mercerized cellulose (cellulose II) have characteristic solid-state <sup>13</sup>C NMR spectra. An important task is to assign each of the <sup>13</sup>C signals to the two sets of six signals arising from the two crystallographically inequivalent glucose units present in each of their structures. Such peak assignments have previously been proposed for cellulose I<i>α</i>, cellulose I<i>β</i>, and cellulose II from through-bond <sup>13</sup>C 2D NMR correlation spectra. We have recently demonstrated that the reported <sup>13</sup>C chemical shifts for cellulose I<i>α</i> and I<i>β</i> require adjustment in order to be on a chemical shift scale with liquid tetramethylsilane at 0 ppm and have presented a revised peak assignment for cellulose I<i>α</i>. We had reason to believe that similar revisions were required for cellulose II and cellulose I<i>β</i>. For cellulose II, it is shown here that a key correlation involving C2 and C3 carbons has been systematically absent from previously reported correlation spectra and is only observed when a through-space dipolar recoupled experiment is performed. For cellulose I<i>β</i>, the ambiguity in assigning the C1 signals from only the C1–C2 correlations in the correlation spectrum is overcome by detecting longer range C1–C3, C1–C4, and C1–C5 correlations with a through-space dipolar recoupling experiment. In the end, a revised set of <sup>13</sup>C peak assignments for cellulose II and cellulose I<i>β</i> is presented whose chemical shifts are correctly referenced to tetramethylsilane at 0 ppm and fully supported by 2D NMR correlation spectra. </p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 7","pages":"4143 - 4160"},"PeriodicalIF":4.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanics of plant epidermal cell wall: effect of anisotropic alignment of cellulose microfibrils in the junction region 植物表皮细胞壁的力学:结区纤维素微原纤维各向异性排列的影响
IF 4.9 2区 工程技术
Cellulose Pub Date : 2025-04-28 DOI: 10.1007/s10570-025-06528-5
Jongcheol Lee, Jessica Sohyun Kim, Jingyi Yu, Jihyeong Ryu, Juseok Choi, Daniel J. Cosgrove, Hojae Yi, Seong H. Kim
{"title":"Mechanics of plant epidermal cell wall: effect of anisotropic alignment of cellulose microfibrils in the junction region","authors":"Jongcheol Lee,&nbsp;Jessica Sohyun Kim,&nbsp;Jingyi Yu,&nbsp;Jihyeong Ryu,&nbsp;Juseok Choi,&nbsp;Daniel J. Cosgrove,&nbsp;Hojae Yi,&nbsp;Seong H. Kim","doi":"10.1007/s10570-025-06528-5","DOIUrl":"10.1007/s10570-025-06528-5","url":null,"abstract":"<div><p>In plants, cellulose microfibrils (CMFs) play a major role in cell wall mechanics. Plant epidermal peels have been widely used as a model system to study the relationship between the CMF arrangement and the mechanical properties of the cell wall. Recently, vibrational sum frequency generation (SFG) spectroscopy imaging has discovered that CMFs in the cell–cell junction regions (i.e., edges of each cell) in the periclinal wall are preferentially aligned (anisotropic) perpendicular to the anticlinal plane, while those in the face regions have the crossed-polylamellate (isotropic) structure possessing all possible orientations. Here, we studied the effect of these regiospecific CMF orientations on the tensile properties of peeled plant epidermal cell walls using finite element analysis (FEA). The FEA simulation showed that the anisotropic fibers in the junction region of the elongated hexagonal cells amplified the anisotropy in the mechanical behavior of the wall under tensile stretching and exhibited a strain-dependent Poisson’s ratio with nonlinear mechanical behavior. The SFG analysis suggested that, in the junction region, there are alterations in cellulose chain conformation within CMFs and/or in CMF-CMF bundling upon tensile stretch.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 7","pages":"4183 - 4198"},"PeriodicalIF":4.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10570-025-06528-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydrodynamic cavitation as a new approach to enhance the enzymatic hydrolysis of sugarcane bagasse 流体动力空化是促进蔗渣酶解的新途径
IF 4.9 2区 工程技术
Cellulose Pub Date : 2025-04-26 DOI: 10.1007/s10570-025-06526-7
C. A. Prado, P. A. F. H. P. Fernandes, M. M. Cruz-Santos, M. L. S. Cunha, R. Terán-Hilares, P. R. F. Marcelino, S. S. da Silva, J. C. Santos
{"title":"Hydrodynamic cavitation as a new approach to enhance the enzymatic hydrolysis of sugarcane bagasse","authors":"C. A. Prado,&nbsp;P. A. F. H. P. Fernandes,&nbsp;M. M. Cruz-Santos,&nbsp;M. L. S. Cunha,&nbsp;R. Terán-Hilares,&nbsp;P. R. F. Marcelino,&nbsp;S. S. da Silva,&nbsp;J. C. Santos","doi":"10.1007/s10570-025-06526-7","DOIUrl":"10.1007/s10570-025-06526-7","url":null,"abstract":"<div><p>A pretreatment step is essential to improve the enzymatic digestibility of biomass, and in recent years, hydrodynamic cavitation (HC) has emerged as a promising alternative. However, while HC has been primarily studied for pretreatment, its application to directly assist the enzymatic hydrolysis process remains unexplored. In this work, a novel approach was introduced, and the effect of HC on the enzymatic hydrolysis of sugarcane bagasse was evaluated by performing a face centered central composite design with enzyme loading and temperature as variables. The analysis of the design results and the process optimization were aided by Design-Expert and Statistica software. Additionally, a sequential strategy involving HC-assisted enzymatic hydrolysis was implemented through four cycles of fed-batch processing. Under optimized conditions (enzyme loading of 18 FPU/g and temperature of 50 °C), glucan and xylan hydrolysis yields of 91% and 77%, respectively, were achieved after 12 h. These yields surpassed those obtained in control experiments performed with ultrasound-assisted hydrolysis. In fed-batch process, the obtained sugar concentrations were increased 5–6 times in the hydrolysate compared to the values obtained in simple batch mode. The results demonstrate HC as an innovative and effective alternative for enhancing enzymatic hydrolysis.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 7","pages":"4469 - 4480"},"PeriodicalIF":4.9,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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