Article
Biochemistry & Molecular Biology
Jinhua Mao, Jincheng Mao, Baiyan Liu, Yachen Xiao, Xiaojiang Yang, Chong Lin, Yang Zhang, Quanhang Wang, Quan Zhang
Summary: Borate crosslinked guar gum gels have been widely used in stimulating oil and gas wells. However, the high dosage of guar gum in the existing fracturing fluid increases cost and damages the reservoir. This study finds that the crosslinking efficiency is significantly improved when the size of the crosslinker is similar to the diameter of the guar gum molecules, which provides new ideas for the development of economical, clean, and green fracturing fluids.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Arti Mahto, Sumit Mishra
Summary: The study successfully removed RB-19 dye using GG-g-PAM-cl-Borax, with the synthesized material structure and properties confirmed by characterization techniques. The adsorption process followed Pseudo Second Order Kinetics, showing high removal rates and adsorption capacity in all cases after optimization of parameters and study of adsorption isotherms. Positive ΔH and ΔS values indicated an endothermic reaction and randomness of the dye molecule, while negative ΔG values supported the feasibility of the adsorption mechanism.
Article
Biochemistry & Molecular Biology
Nashriq Jailani, Nardiah Rizwana Jaafar, Suhaily Suhaimi, Mukram Mohamed Mackeen, Farah Diba Abu Bakar, Rosli Md Illias
Summary: This study investigates the influence of different cross-linking agents on the immobilization of cyclodextrin glucanotransferase G1 (CGTase G1) for cyclodextrin synthesis. Through molecular modeling and experimental optimization, it is found that CGTase G1 cross-linked with chitosan (CS-CGTG1-CLEA) exhibits the highest activity recovery and stability, making it a promising biocatalyst for cyclodextrin production.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Biochemistry & Molecular Biology
Nahid Najafian, Aazam Aarabi, Alireza Nezamzadeh-Ejhieh
Summary: This study aimed to optimize the formulation of gluten-based composite film incorporated with Persian gum and Guar gum using the response surface method. The effects of different variables on the physicochemical properties of the films were investigated. The results showed that gluten is compatible with Persian gum and Guar gum, and the variables significantly affected the films' mechanical and physical properties.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Biochemistry & Molecular Biology
Aleksandr S. Kazachenko, Feride Akman, Abir Sagaama, Noureddine Issaoui, Yuriy N. Malyar, Natalya Yu. Vasilieva, Valentina S. Borovkova
Summary: In this study, sulfation of guar gum using a complex of sulfur trioxide and 1,4-dioxane was optimized through experimental conditions. The changes in the morphology and structure of guar gum during sulfation were characterized using various analytical methods. The molecular weight of guar gum decreased from 600 to 176 kDa during the sulfation process, as confirmed by gel permeation chromatography.
JOURNAL OF MOLECULAR MODELING
(2021)
Article
Biochemistry & Molecular Biology
Aatrayee Das, Sonia Kundu, Mradu Gupta, Arup Mukherjee
Summary: This work developed an eco-sound nano-bio-hybrid sorbent using sustainable materials for sorptive elimination of congo red and phosphates from aquatic environment. The study demonstrated the near-uniform impregnation of rhombohedral calcium carbonate crystals throughout the biopolymer matrix, and the high adsorption capacity of the developed nanobiohybrid. In addition, the nanobiohybrid showed persistent antibacterial properties.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Yiping Wen, Zhengfeng Xie, Songsong Xue, Jie Long, Wei Shi, Yucheng Liu
Summary: A novel environmentally friendly benzenesulfonyl hydrazone modified guar gum (DGH) was prepared and characterized for its excellent adsorption performance towards dyes. The as-prepared DGH showed highly efficient separating performance towards anionic and cationic dyes. The adsorption thermodynamics indicated that the adsorption of dyes onto DGH was spontaneous and endothermic, and the adsorption mechanism involved hydrogen bonding and electrostatic interaction.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Applied
Qing Zhang, Daize Wu, Wei Luo, Derong Lin, Jing Yan, Shuxiang Liu, Wen Qin
Summary: The molecular structure and functional properties of glycinin conjugated to kappa-carrageenan and guar gum using a dry heating method were compared. It was found that kappa-carrageenan had a higher tendency to be grafted onto glycinin compared to guar gum. Glycosylation with guar gum near the isoelectric point of glycinin resulted in better solubility improvement than glycosylation with kappa-carrageenan. The glycosylation with both polysaccharides enhanced the emulsifying and rheological properties of glycinin, with kappa-carrageenan exhibiting better performance compared to guar gum.
Article
Chemistry, Applied
Faustine Poret, Alexandre Cordinier, Nicolas Hucher, Michel Grisel, Geraldine Savary
Summary: The study found that the synergism between xanthan gum and galactomannans like guar gum and locust bean gum can increase the firmness of mixtures and decrease the film stickiness, providing new insights for the development of skincare products.
CARBOHYDRATE POLYMERS
(2021)
Article
Food Science & Technology
Yogesh Kumar, Soumen Roy, Ariha Devra, Atul Dhiman, Pramod K. Prabhakar
Summary: The study found that the use of different amplitudes of ultrasound treatment and various hydrocolloids as thickeners can affect the stability and rheological properties of mayonnaise. As the ultrasound amplitude increased, the apparent viscosity of the mayonnaise samples decreased, with the type of thickener used also impacting the results.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Applied
Xin-Yu Jiang, Jia-Nan Yan, Lin Li, Wen Sun, Bin Nie, Hai-Tao Wu
Summary: The involvement of hydrogen bonding and hydrophobic interactions in a mixture of scallop male gonad hydrolysates (SMGHs) and guar gum or locust-bean gum was investigated. Treatment with guanidine hydrochloride or urea reduced the viscosity of mixed gels and resulted in changes of moisture distribution and conformational characteristics. The SMGHs/GG and SMGHs/LBG mixtures yielded strong gels and can be used as thickening agents in food systems.
Article
Food Science & Technology
Yu-chen Lei, Xia Zhao, Dong Li, Li-jun Wang, Yong Wang
Summary: This study investigated the effects of two polysaccharides, kappa-carrageenan and guar gum, on the performance and microstructure of phycocyanin gels. It was found that both polysaccharides enhanced the network structure of the gel, with kappa-carrageenan showing the highest gel strength. However, too high a concentration of guar gum hindered the formation of protein structure.
Review
Food Science & Technology
Sima Tahmouzi, Heidar Meftahizadeh, Saba Eyshi, Amin Mahmoudzadeh, Behnam Alizadeh, Neda Mollakhalili-Meybodi, Mehrnaz Hatami
Summary: With the increase in modernization and consumption of processed foods, the demand for texturizing agents and natural additives has risen. Thickening agents are commonly used in food products to modify their rheological and textural properties. Guar gum (GG), extracted from guar beans, is a popular galactomannan polysaccharide that imparts significant thickening and binding properties to solutions. This study aims to investigate the characteristics, mechanisms, and applications of GG in different food technologies.
FOOD SCIENCE & NUTRITION
(2023)
Article
Chemistry, Physical
Rui'E Guo, Qian Zhang, ZaiXing Wang, Morteza Tayebi, Bejan Hamawandi
Summary: This research investigates the synergistic effect of Arabic and guar gum inhibitors on the corrosion efficiency of concrete reinforcement. The results show that adding inhibitors increases the compressive strength of concrete and reduces water transmissibility. The electrical resistivity slightly increases with time. Arabic and guar gums are effective inhibitors that can be well absorbed on the reinforcement surface.
Article
Chemistry, Applied
Junhua Li, Jinjing Sun, Cuihua Chang, Luping Gu, Yujie Su, Jiali Zhai
Summary: The influence of neutral locust bean gum (LBG), guar gum (GG), and anionic xanthan gum (XG) on the foaming and baking properties of egg white (EW) powders were investigated in this study. The addition of these gums increased the surface tension, particle size, viscosity, and interfacial adsorption modulus of reconstituted EW solutions, while decreasing surface hydrophobicity. The addition of gums, especially LBG and GG, reduced the whipping time in the preparation of cake batter by facilitating the rapid infiltration of air in foam. The inclusion of neutral gums improved the baking performance of EW powders by increasing the foaming rate and capacity.
FOOD HYDROCOLLOIDS
(2023)