Article
Food Science & Technology
Pengkai Wang, Yao Wang, Pengzhi Hong, Chunxia Zhou
Summary: This study utilized 2,3-dialdehyde starch crystal as a bio-crosslinker to design composite gelatin-based films with superior mechanical and barrier properties. The XPS and H-1-NMR analyses confirmed the effectiveness of di-aldehyde starch crystal in enhancing the performance of gelatin films, particularly the 10% di-aldehyde starch crystal content.
Article
Biochemistry & Molecular Biology
Peter N. Kariuki, Yasothai Arjunan, Usharani Nagarajan, Swarna V. Kanth
Summary: Through a four-step process, native tapioca starch was converted into dialdehyde tapioca starch (DTS) with ideal properties for various applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Review
Polymer Science
Ioana A. A. Duceac, Sergiu Coseri
Summary: Chitosan is a unique polysaccharide with amine groups naturally occurring in its structure, making it a polycation suitable for preparing polyelectrolyte complexes or imine bonds gels. Hydrogels have advantages such as quick gelation, no need for crosslinking agents, and self-healing and injectability properties, which are of great importance in various applications.
Article
Biochemistry & Molecular Biology
Sylwia Grabska-Zielinska, Alina Sionkowska, Ewa Olewnik-Kruszkowska, Katarzyna Reczynska, Elzbieta Pamula
Summary: This study aimed to compare the physicochemical properties of three-dimensional scaffolds based on silk fibroin, collagen, and chitosan, cross-linked with dialdehyde starch (DAS) and dialdehyde chitosan (DAC). The results showed that DAS and DAC have different impacts on the properties of biopolymeric scaffolds, with DAS-crosslinked scaffolds exhibiting higher swelling ability, lower density, and lower mechanical properties compared to DAC-crosslinked scaffolds. Despite this, both types of scaffolds showed potential for use in regenerative medicine and tissue engineering, particularly in bone tissue engineering for healing small bone defects.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Applied
Jonas Simon, Lukas Fliri, Felix Drexler, Markus Bacher, Janak Sapkota, Matti Ristolainen, Michael Hummel, Antje Potthast, Thomas Rosenau
Summary: Periodate oxidation of cellulose to produce dialdehyde cellulose (DAC) has attracted increasing attention in sustainable materials development. However, there is a large variation in the proposed preparation and work-up protocols, decreasing comparability and causing reproducibility problems. This study critically examined and compared two prevalent work-up protocols, glycol quenching and filtration/washing. The findings suggest that simple washing protocols are recommended instead of glycol quenching to prevent side reactions and organic contaminations.
CARBOHYDRATE POLYMERS
(2023)
Article
Biochemistry & Molecular Biology
Hamidreza Mozafari, Mohammad Hojjatoleslamy, Mohammadreza Mohammadizadeh
Summary: The Zodo gum exudated by Amygdalus scoparia spach was chemically modified through periodate oxidation to produce dialdehyde Zodo gum (DZG). Factors such as sodium periodate volume, temperature, pH, and time were considered in modifying the properties of Zodo gum. Optimal conditions were determined for the production of different samples with varying dialdehyde content, with H-1-C-13 NMR, FTIR, and rheological parameters used to evaluate the results.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Paper & Wood
Wenyao Peng, Cunjun Dong, Junjian An, Guangyan Zhang, Peng Wang, Yimin Xie
Summary: In order to eliminate toxic formaldehyde from wood-based panels, a formaldehyde-free wood adhesive named OL/PEI adhesive was synthesized by reacting oxidized lignin (OL) with polyethylenimine (PEI) in the presence of sodium periodate. The curing mechanism of the OL/PEI adhesive was determined through spectroscopic techniques. Under optimized conditions, the resulting particleboard showed evenly dispersed OL/PEI adhesive and achieved high mechanical properties, water resistance, and heating resistivity. This study provides a new approach to produce a formaldehyde-free wood adhesive with unique properties for wood bonding.
Article
Biochemistry & Molecular Biology
Liheng Wang, Haizhen Mo, Hongbo Li, Dan Xu, Dangge Gao, Zhenbin Liu, Jiayi Zhang, Lishan Yao, Liangbin Hu
Summary: The abuse of chrome tanning agent in leather processing has caused serious harm to human health and the natural environment. In this study, tremella polysaccharides, lentinan, and konjac gum were used to prepare a polysaccharide tanning agent using sodium periodate as an oxidant. The effects of different oxidation conditions on the shrinkage temperature of tanned leather were investigated, and the increase of sodium periodate dosage was found to be beneficial for leather tanning.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Vinh Tien Nguyen, Thi Nga Vo, Khanh Son Trinh
Summary: A novel starch derivative was produced in this study for slow-release applications, exhibiting different physical and chemical properties compared to native starch.
ORIENTAL JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Paper & Wood
Martin Chewe Sichinga, Timothy Kline, M. A. Whitehead, Theo G. M. van de Ven
Summary: The development of an environmentally sensitive and cost-effective method for producing multi-functionalized cellulose fibers has led to the synthesis of imine carboxymethyl dialdehyde modified cellulose fibers (ICDAMF). This approach allows for the integration of desirable functional groups, such as carboxyl groups for gel formation and aldehyde groups for covalent adsorption of diamine dyes. The ICDAMF has potential use in textiles, where it can prevent the leaching of dyes and reduce environmental pollution.
Article
Chemistry, Applied
Ying Li, Jin-Hua Wang, Yu Han, Fu-Hao Yue, Xin-An Zeng, Bo-Ru Chen, Man-Qin Zeng, Meng-Wai Woo, Zhong Han
Summary: The structural and physicochemical properties of corn starch oxidized by sodium periodate under PEF assistance were examined. The results showed that PEF-assisted oxidation produced dialdehyde starch (DAS) particles with shrinkage, pits, and larger particle size compared to the control. The solubility of DAS increased by 70.2% with 12 kV/cm PEF assistance. Increasing PEF strength decreased the viscosity of DAS. Furthermore, the aldehyde group content of DAS produced by PEF-assisted oxidation increased by 11.6% compared to traditional oxidation methods. PEF is an effective method to promote starch oxidation reactions.
Article
Materials Science, Paper & Wood
Mohamed Hasanin, Amr H. Hashem, Ahmed A. El-Rashedy, Samir Kamel
Summary: New amino heterocyclic cellulose derivatives were prepared and showed potential antimicrobial and antitumor activities. Molecular dynamics study revealed the selective targeting of ATP binding pocket residues by these compounds, providing a structure basis for understanding c-Kit kinase auto-inhibition.
Article
Biochemistry & Molecular Biology
Yang Xu, Yongjian Xu, Wenhuan Deng, Hao Chen, Jianhua Xiong
Summary: A comparative study on the extraction of Dialdehyde cellulose nanocrystals (DCNC) using NaIO4 pre-oxidation and synchronous oxidation was conducted. It was found that ring-liked and rod-liked DCNC with different micromorphology and oxidation degree can be obtained through optimized deep eutectic solvent treatment.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Applied
Yu Li, Fan Wang, Jieru Xu, Tong Wang, Jinling Zhan, Rongrong Ma, Yaoqi Tian
Summary: The optical properties of food packaging are important for product appearance and consumer preference. This study developed a highly transparent starch-based coating with improved quality preservation and extended shelf life. The coating was achieved through phosphorylation and oxidation treatments on cassava starch, resulting in increased phosphorus content and reduced molecular weight and crystallinity. The coating exhibited high transparency, UV protection, and enhanced physicochemical properties compared to the native starch-based coating. It showed promise in preserving the quality of fruits, such as strawberries and fresh-cut apples. This work provides a novel solution for highly transparent food packaging materials.
FOOD HYDROCOLLOIDS
(2023)
Article
Materials Science, Paper & Wood
Jonas Simon, Lukas Fliri, Flavia Froehlich, Janak Sapkota, Matti Ristolainen, Michael Hummel, Thomas Rosenau, Antje Potthast
Summary: Borohydride reduction of dialdehyde cellulose is a promising strategy for producing bio-based dialcohol cellulose. However, degradation of the polymer backbone limits its practical applications. This study aimed to optimize the reduction process by adjusting reaction time, pH, and reagent stoichiometry to suppress degradation reactions. The degree of oxidation significantly affects the yields and molecular weights of the dialcohol cellulose products, with a leveling-off effect at higher oxidation degrees. Increasing the amount of sodium borohydride can minimize chain scissions, while lowering the pH slows down degradation but affects conversion of aldehyde functionalities. This study provides insights into side reactions during borohydride reduction of dialdehyde cellulose and the chemistry of the dialdehyde cellulose/dialcohol cellulose system.