Article
Biochemistry & Molecular Biology
Hamid M. Shaikh, Arfat Anis, Anesh Manjaly Poulose, Saeed M. Al-Zahrani, Niyaz Ahamad Madhar, Abdullah Alhamidi, Saleh Husam Aldeligan, Faisal S. Alsubaie
Summary: Cellulosic polysaccharides are recognized as a viable alternative to petro-based feedstock for obtaining bio-based materials. In this study, cellulose triacetate was synthesized from waste lignocellulosic material of date palm and compared with a commercially available derivative. The synthesized cellulose ester showed similar properties and can be used for fabricating biodegradable cellulose-based composites.
Article
Chemistry, Multidisciplinary
Yue Liu, Hongqiao Fu, Wei Zhang, Haichao Liu
Summary: The depolymerization of cellulose involves the cleavage of glycosidic bond by acid hydrolysis and disruption of its crystalline structure. Different crystalline allomorphs of cellulose exhibit unique hydrolysis behavior, with cellulose II showing the highest reaction rate due to its higher reaction probability and accessibility of glycosidic bond.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Environmental Sciences
Boqun Shao, Zhibang Han, Ruirui Pang, Dong Wu, Bing Xie, Yinglong Su
Summary: Global energy issue necessitates the development of second-generation biofuels, and biorefinery of cellulosic biomass offers a promising solution. Ultrasonication treatment improves cellulose hydrolysis efficiency by altering cellulose properties and increasing enzymatic bio-accessibility. This study provides valuable insights into the structure and property response of cellulose to mechanistic treatments, enabling the development of novel pretreatment methods for efficient utilization.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Materials Science, Paper & Wood
Masse Bamba, Edja Florentin Assanvo, Esaie Kouadio Appiah Kouassi, Doudjo Soro, Leygnima Yaya Ouattara, Kouassi Benjamin Yao, Allali Patrick Drogui, Dayal Rajeshwar Tyagi
Summary: The valorization of agricultural residues for high value-added products is crucial for addressing global environmental concerns and reducing pollution caused by agricultural waste. This study focused on the synthesis of cellulose triacetate (CTA) using cocoa pod husk (CPH). Treatment with sodium hydroxide and hydrogen peroxide enabled successful extraction of cellulose from CPH, with a yield of 54%. CTA was synthesized through an acetylation reaction, resulting in a degree of substitution of 2.87 and an acetylated group percentage of 43.8%.
Article
Engineering, Chemical
Israa Othman, Priyabrata Pal, Mohammad Abu Haija, Shadi W. Hassan, Basim Abu-Jdayil, Baraa AlKhateeb, Fawzi Banat
Summary: This study extracted crystalline nanocellulose from date palm seeds as a raw material and successfully removed the amorphous phase of cellulose using a stepwise treatment approach. The nanocellulose exhibited good thermal stability and showed potential for various industrial and domestic applications.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Xinyu Zhang, Wenyuan Zhu, Jiaqi Guo, Junlong Song, Huining Xiao
Summary: The degree of substitution (DS) of quaternary cellulose (QC) samples synthesized with microwave assistance was found to be positively correlated with the strength improvement of fiber networks. The addition of QC enhanced the tensile and burst strength of fiber networks, with the best result achieved with a QC DS of 0.51.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Polymer Science
Jonas Wolfs, F. Clara M. Scheelje, Olga Matveyeva, Michael A. R. Meier
Summary: Cellulose derivatives have potential as bio-based polymeric materials in various applications, and accurately determining their degree of substitution (DS) is crucial for understanding their material properties. This study investigated the usefulness of attenuated total reflection-Fourier transform infrared in determining the DS of cellulose esters. A newly developed model was used to fit the data and a non-linear correlation between absorbance intensity and DS was observed. This DS determination method is simple, efficient, and can be applied to non-soluble samples.
JOURNAL OF POLYMER SCIENCE
(2023)
Article
Construction & Building Technology
Jian Li, Ru Wang, Yu Xu
Summary: The effects of different cellulose ethers on the setting and hydration process of calcium sulphoaluminate (CSA) cement were studied in this research. The results showed that the type and dosage of cellulose ethers had an impact on the setting time and hydration heat of the cement.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Paper & Wood
Xinyu Zhang, Jing Tian, Peipei Wang, Tian Liu, Xiaomin Lu, Jiaqi Guo, Yongcan Jin, Huining Xiao, Junlong Song
Summary: The substitution degree (DS) of charged groups in a polymer has a significant impact on its adsorption behavior at the interface, which ultimately affects its applications and performance. This study investigates the adsorption behavior of quaternary celluloses (QCs) with different DS (0.23 and 0.51) on charged surfaces, particularly silica surface. The results reveal that QCs with lower DS can adsorb more onto the silica surface but with a softer conformation, while QCs with higher DS exhibit more negative ΔG, more negative ΔH, slightly lower positive ΔS, and less favorable ΔC-p, indicating the substantial influence of DS on the adsorption behavior and thermodynamics of QCs.
Article
Engineering, Environmental
Tielong Li, Chaolin Gao, Wei Wang, Yaxin Teng, Xiao Li, Haitao Wang
Summary: By increasing the degree of substitution (D.S.) of CMC, this study successfully reversed the negative influence of CMC on the properties of S-nZVI, resulting in higher longevity and ee. CMC with super high D.S. showed compatible molecular structure and significantly enhanced the properties of S-nZVI.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Food Science & Technology
Huan Zhang, Xiaojing Tian, Kai Zhang, Yuehong Du, Chen Guo, Xinzhu Liu, Yang Wang, Jinfeng Xing, Wenhang Wang
Summary: Adding carboxymethylated cellulose nanofibrils to cull cow meat myofibrillar protein can improve gelation properties, especially at higher degrees of substitution. Lower substitution levels of nanofibrils lead to reduced liquid loss in gels, denser network structure, and increased resistance to deformation.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Polymer Science
Simoni Da Ros, Abil E. Aliev, Isabella del Gaudio, Rose King, Anna Pokorska, Mark Kearney, Katherine Curran
Summary: This study presents a new method using high-resolution proton nuclear magnetic resonance spectroscopy (H-1 NMR) to investigate plasticiser loss and deacetylation degradation processes in historic plasticised cellulose acetate artefacts. The proposed methods allow for simple and fast quantification of plasticiser content and degree of substitution without the need for extractive separation.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Food Science & Technology
Nashi K. Alqahtani, Tareq M. Alnemr, Abdullah M. Alqattan, Salah M. Aleid, Hosam M. Habib
Summary: Processed cheese has seen rapid commercial growth, and a new study reveals the potential use of byproduct from date fruit seed (DFS) as fortified fiber in block-type processed cheese. Adding DFS to cheese increased its nutritional value through fiber addition but affected its texture profile, making it less compact and more open with increased DFS concentration and storage duration. Moreover, DFS caused the cheese to have a darker color. It was concluded that acceptable quality of block-type processed cheese could be achieved using DFS fiber at 5% and 10% levels of fortification.
Article
Chemistry, Multidisciplinary
Nguyen H. Nguyen, Soo Min Oh, Cheol-Min Park, Seunghoon Shin
Summary: The study presents a strategy to invert the normal polarity of indoles in heterobiaryl coupling, achieving exclusive ortho-selective coupling with phenols. Various substrates coupled with exceptional efficiency and selectivity under the action of Brønsted acid or Cu(i) catalysts at ambient temperature.
Article
Polymer Science
Megan Smyth, Chris Rader, Julien Bras, E. Johan Foster
JOURNAL OF APPLIED POLYMER SCIENCE
(2018)
Article
Materials Science, Biomaterials
Seema Saini, Mohamed Naceur Belgacem, Julien Bras
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2017)
Article
Chemistry, Multidisciplinary
Fanny Hoeng, Julien Bras, Erwan Gicquel, Guillaume Krosnicki, Aurore Denneulin
Article
Chemistry, Multidisciplinary
Fleur Rol, Blagoj Karakashov, Oleksandr Nechyporchuk, Maxime Terrien, Valerie Meyer, Alain Dufresne, Mohamed Naceur Belgacem, Julien Bras
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2017)
Article
Food Science & Technology
Benoit Bideau, Julien Bras, Nawel Adoui, Eric Loranger, Claude Daneault
FOOD PACKAGING AND SHELF LIFE
(2017)
Article
Chemistry, Applied
Megan Smyth, Marie-Stella M'Bengue, Maxime Terrien, Catherine Picart, Julien Bras, E. Johan Foster
CARBOHYDRATE POLYMERS
(2018)
Article
Chemistry, Applied
Etzael Espino-Perez, Julien Bras, Giana Almeida, Cedric Plessis, Naceur Belgacem, Patrick Perre, Sandra Domenek
CARBOHYDRATE POLYMERS
(2018)
Article
Materials Science, Paper & Wood
Daniele Oliveira de Castro, Nicolas Tabary, Bernard Martel, Alessandro Gandini, Naceur Belgacem, Julien Bras
Article
Chemistry, Physical
Charlene Reverdy, Naceur Belgacem, Maziar Sedighi Moghaddam, Mikael Sundin, Agne Swerin, Julien Bras
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2018)
Article
Chemistry, Physical
Nadege Follain, Sabrina Belbekhouche, Julien Bras, Gilberto Siqueira, Corinne Chappey, Stephane Marais, Alain Dufresne
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2018)
Article
Chemistry, Physical
M. Hdidar, S. Chouikhi, A. Fattoum, M. Arous, A. Kallel
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Green & Sustainable Science & Technology
Lisias Pereira Novo, Julien Bras, Mohamed Naceur Belgacem, Antonio Aprigio da Silva Curvelo
JOURNAL OF RENEWABLE MATERIALS
(2018)
Article
Polymer Science
A. Sendi, A. Fattoum, R. Pedicini, A. Carbone
POLYMER SCIENCE SERIES A
(2019)
Article
Chemistry, Physical
Mourad Mbarek, Arbi Fattoum, Amira Sendi, Sami Boufi
Summary: The study prepared and characterized PVA/MMT composite films with various clay amounts, finding that the addition of clay affects the crystalline degree, thermal stability, young modulus, and ductility of the films. The presence of montmorillonite enhances thermal stability and modifies the electrical and mechanical properties of the composite films.
Article
Physics, Multidisciplinary
Y. Nioua, S. El Bouazzaoui, B. M. G. Melo, P. R. Prezas, M. E. Achour, M. P. F. Graca, L. C. Costa, A. Fattoum, M. E. Touhami
JORDAN JOURNAL OF PHYSICS
(2020)