NMR analysis of the side-group substituents in welan gum in comparison to gellan gum

Cai, Zhixiang; Guo, Yalong; Ma, Aiqin; Zhang, Hongbin

doi:10.1016/j.ijbiomac.2023.127847

Cited by 4 publications

(1 citation statement)

References 62 publications

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“…A comprehensive evaluation of the benefits and drawbacks associated with the use of gellan gum in comparison to other polysaccharides [53,[66][67][68][69][70][71][72].…”

Section: Tablementioning

confidence: 99%

Gellan Gum as a Unique Microbial Polysaccharide: Its Characteristics, Synthesis, and Current Application Trends

Abdl Aali,

Al-Sahlany

2024

Gels

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Gellan gum (GG) is a linear, negatively charged exopolysaccharide that is biodegradable and non-toxic. When metallic ions are present, a hard and transparent gel is produced, which remains stable at a low pH. It exhibits high water solubility, can be easily bio-fabricated, demonstrates excellent film/hydrogel formation, is biodegradable, and shows biocompatibility. These characteristics render GG a suitable option for use in food, biomedical, and cosmetic fields. Thus, this review paper offers a concise summary of microbial polysaccharides. Moreover, an in-depth investigation of trends in different facets of GG, such as biosynthesis, chemical composition, and physical and chemical properties, is emphasized. In addition, this paper highlights the process of extracting and purifying GG. Furthermore, an in-depth discussion of the advantages and disadvantages of GG concerning other polysaccharides is presented. Moreover, the utilization of GG across different industries, such as food, medicine, pharmaceuticals, cosmetics, etc., is thoroughly examined and will greatly benefit individuals involved in this field who are seeking fresh opportunities for innovative projects in the future.

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“…A comprehensive evaluation of the benefits and drawbacks associated with the use of gellan gum in comparison to other polysaccharides [53,[66][67][68][69][70][71][72].…”

Section: Tablementioning

confidence: 99%

Gellan Gum as a Unique Microbial Polysaccharide: Its Characteristics, Synthesis, and Current Application Trends

Abdl Aali,

Al-Sahlany

2024

Gels

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Customized Modification of Welan Gum Properties Through Controllable Grafting of Acrylamide

Xu,

Li,

et al. 2024

Biopolymers

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Welan gum (WG) has a wide range of applications, but it is not yet suitable for applications such as oil recovery profile control that have complex requirements for viscosity, gelation properties, and so forth. Grafting modification is an important strategy for improving the property of WG, but there are few reports on controllable modification of WG to customize it for specific application. Acrylamide (AM) dosage was identified as the key factor affecting the grafting ratio of AM onto WG by a uniform experimental design. The grafting ratio can be directly adjusted between 99% and 378% based on the positive correlation with dosage of AM, and viscosity can be adjusted between 206 and 327 mPa s based on the negative correlation with grafting ratio. The 50% weight loss temperature of W11 with a grafting ratio of 110% raised from 314 to 336°C after grafting. The viscosity of the hydrogel formed with WG11 reached 15,654 mPa s, nearly nine times higher than that of unmodified WG. In addition, the gelation time can be controlled within 5 days, so that it can be injected to the optimal area in oilfield profile, avoiding pipeline blockage. This study enables adjusting viscosity of WG grafted with AM by controlling the grafting rate, and enhances gelation performance and thermal stability of WG, which will expand the application of WG in oil recovery and other fields.

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Glycerol-driven adaptive evolution for the production of low-molecular-weight Welan gum: Characterization and activity evaluation

Wang,

Gao,

Zhu

et al. 2024

Carbohydrate Polymers

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NMR analysis of the side-group substituents in welan gum in comparison to gellan gum

Cited by 4 publications

References 62 publications

Gellan Gum as a Unique Microbial Polysaccharide: Its Characteristics, Synthesis, and Current Application Trends

Gellan Gum as a Unique Microbial Polysaccharide: Its Characteristics, Synthesis, and Current Application Trends

Customized Modification of Welan Gum Properties Through Controllable Grafting of Acrylamide

Glycerol-driven adaptive evolution for the production of low-molecular-weight Welan gum: Characterization and activity evaluation

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