Dissolution of konjac glucomannan with room temperature ionic liquids

Shen, Chunhui; Li, Denian; Zhang, Ling; Wan, Chengpeng; Gao, Shanjun

doi:10.1007/s11595-011-0297-y

Cited by 8 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be inferred from Table 4 that binary ionic liquid mixtures are comparatively better than single ionic liquids . (Shen et al 2011). Acylation of konjac glucomannan (KGM) was carried out with vinyl acetate and lipase enzyme in five types of ionic liquids (ILs).…”

Section: Starchmentioning

confidence: 99%

Catalytic Role of Ionic Liquids for Dissolution and Degradation of Biomacromolecules

Chowdhury¹,

Zain²,

Hamid³

et al. 2014

BioResources

View full text Add to dashboard Cite

Natural biomacromolecules constitute a diverse feedstock, including carbohydrate-based polysaccharides (cellulose, hemicellulose, starch, agarose, and Konjac glucomannan) together with lignin -extracted mainly from biomass -and other protein based polymers, namely keratin, chitin, chitosan, and silk fibroin. The complex and heterogeneous chemical structure of biomacromolecules makes them difficult to dissolve and disintegrate into simpler molecules for further applications. In this regard, ionic liquids are potential solvents for the dissolution and modification of long chain biopolymers. This provides a promising pretreatment technology and is known to allow adequate extraction of biopolymers from natural sources. This paper highlights the properties of ionic liquids for their use as versatile solvents. This review provides a critical outlook regarding the influence of several process parameters that govern the fractionation of biomacromolecules into their constituent elements and further pretreatment processes. The performance of different types of ionic liquids for processing of biomacromolecules, focusing on their pertinent capability as catalysts to enhance the rate of hydrolysis, also is discussed in this article.

show abstract

Section: Starchmentioning

confidence: 99%

Catalytic Role of Ionic Liquids for Dissolution and Degradation of Biomacromolecules

Chowdhury¹,

Zain²,

Hamid³

et al. 2014

BioResources

View full text Add to dashboard Cite

show abstract

Impact of Curdlan Addition on the Properties of Konjac Glucomannan/Ethyl Cellulose Composite Films

Yan

et al. 2021

Starch Stärke

View full text Add to dashboard Cite

An edible film containing both hydrophilic and hydrophobic components could have good mechanical and moisture barrier properties at the same time.Previous research indicated the high potential of konjac glucomannan (KGM) and ethyl cellulose (EC) film in the development of novel edible films, and this study aimed to further improve the hydrophobicity and film properties by addition of curdlan to prepare KGM/curdlan/EC ternary composite films. Results indicated that the addition could significantly change the water contact angle, moisture barrier properties, and mechanical properties of the KGM/EC films, and the optimum addition amount is considered to be 20% of the total weight of KGM and EC. The SEM images, FTIR, and XRD results indicated that the molecular interaction between curdlan and other film components is relatively weak, and this is probably cause by that curdlan remained in the triple-helix structure under the preparation condition. Therefore curdlan should mainly act as the filling components of the films, and too low or too high addition amount led to decreased mechanical and water vapor permeability properties. The obtained results may offer suggestions to prepare ternary composite edible films with curdlan addition.

show abstract

Imidazolium-based ionic liquids for cellulose pretreatment: recent progresses and future perspectives

Cao

Zhang

Cheng

et al. 2016

Appl Microbiol Biotechnol

105

View full text Add to dashboard Cite

As the most abundant biomass in nature, cellulose is considered to be an excellent feedstock to produce renewable fuels and fine chemicals. Due to its hydrogen-bonded supramolecular structure, cellulose is hardly soluble in water and most conventional organic solvents, limiting its further applications. The emergence of ionic liquids (ILs) provides an environmentally friendly, biodegradable solvent system to dissolve cellulose. This review summarizes recent advances concerning imidazolium-based ILs for cellulose pretreatment. The structure of cations and anions which has an influence on the solubility is emphasized. Methods to assist cellulose pretreatment with ILs are discussed. The state of art of the recovery, regeneration, and reuse aspects of ILs is also presented in this work. The current challenges and development directions of cellulose dissolution in ILs are put forward. Although further studies are still much required, commercialization of IL-based processes has made great progress in recent years.

show abstract

Dissolution of konjac glucomannan with room temperature ionic liquids

Cited by 8 publications

References 33 publications

Catalytic Role of Ionic Liquids for Dissolution and Degradation of Biomacromolecules

Catalytic Role of Ionic Liquids for Dissolution and Degradation of Biomacromolecules

Impact of Curdlan Addition on the Properties of Konjac Glucomannan/Ethyl Cellulose Composite Films

Imidazolium-based ionic liquids for cellulose pretreatment: recent progresses and future perspectives

Contact Info

Product

Resources

About