Efficient conversion of chitosan into 5-hydroxymethylfurfural via hydrothermal synthesis in ionic liquids aqueous solution

Li, Mingguang; Zang, Hongjun; Feng, Jiaxuan; Yan, Qing; Yu, Nianqin; Shi, Xiaolong; Cheng, Bowen

doi:10.1016/j.polymdegradstab.2015.09.009

Cited by 39 publications

(28 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The direct conversion of chitin into 5-HMF is a traditional reaction usually conducted using metal salts as catalysts (FeCl 2 , ZnCl 2 , AlCl 3 , and B(OH) 3 ) under high temperature, hydrothermal conditions (Scheme 5) (Wang et al, 2013;Yu et al, 2016). In 2015, ILs with different cations and anions of varying acidity, hydrogen-bonding capacity, and steric hindrance were tested as catalysts for 5-HMF formation from chitosan as the starting material ( (Li et al, 2015).…”

Section: Preparation Of 5-hydroxymethylfurfural (5-hmf)mentioning

confidence: 99%

Use of Ionic Liquids in Chitin Biorefinery: A Systematic Review

Shamshina¹,

Bertón

2020

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

Lignocellulosic biomass biorefinery is the most extensively investigated biorefinery model. At the same time, chitin, structurally similar to cellulose and the second most abundant polymer on Earth, represents a unique chemical structure that allows the direct manufacture of nitrogen-containing building blocks and intermediates, a goal not accomplishable using lignocellulosic biomass. However, the recovery, dissolution, and treatment of chitin was fairly challenging until the polymer's easy dissolution in ionic liquids (salts that are liquid at room temperature) was discovered. In this systematic review, we highlight recent developments in the processing of chitin, with a particular emphasis placed on methods conducted with the help of ionic liquids used as solvents, co-solvents, or catalysts. Such use of ionic liquids in the field of chemical transformations of chitin not only allows for shorter times and less harsh reaction conditions, but also results in different outcomes and higher product yields when compared with reactions conducted in "traditional" manner. Valorization of biomass in general, and chitin in particular, is a key enabling strategy of the circular economy, due to the importance of the sustainable production of biomass-based goods and chemicals and full chain resource efficiency. Economics is driven by the production of high-value chemicals or chemical intermediates from various biomasses, and chitinous biomass is a valuable potential resource. A fundamental "paradigm shift" will radically change the balance of oil-based chemicals to biopolymer-based chemicals, and chitin valorization is a necessary step aimed toward its full market competitiveness and flexibility.

show abstract

Section: Preparation Of 5-hydroxymethylfurfural (5-hmf)mentioning

confidence: 99%

Use of Ionic Liquids in Chitin Biorefinery: A Systematic Review

Shamshina¹,

Bertón

2020

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…Under the optimal reaction conditions (4 wt % of IL, chitosan=100 mg, 180 °C, 5 h) 29.5 mol% of HMF was obtained. With this system, chitosan with variable higher molecular weight could also be converted to HMF . In their next study they used Bronsted Lewis acidic ionic liquid ([Hmim][HSO 4 ]‐0.5FeCl 2 ).…”

Section: N‐containing Biopolymers As a Source Of Platform Chemicalsmentioning

confidence: 99%

“…With this system, chitosan with variable higher molecular weight could also be converted to HMF. [144] In their next study they used Bronsted Lewis acidic ionic liquid ([Hmim][HSO 4 ]-0.5FeCl 2 ). Addition of Lewis acidity was beneficial and it increased the yield to 44.1 %.…”

Section: N-containing Biopolymers As a Source Of Platform Chemicalsmentioning

confidence: 99%

Valorization of Oceanic Waste Biomass: A Catalytic Perspective

Lucas

Athawale

Rode

2019

The Chemical Record

View full text Add to dashboard Cite

Efficacious waste utilization is vital in context of sustainability. The past decade has witnessed attempts of usage of land biomass and wastes for various applications, contributing towards a sustainable society. Exploitation of the marine biomass, which does not compete with habitation and food production like land biomass has been largely unnoticed and therefore not being utilized judiciously. Researchers have mainly exploited these resources as functional materials having significant potential applications. However, a catalytic perspective for the valorisation of these polymers arising from oceanic waste widens their scope and ameliorates its use. The objective of the present review is to demonstrate the effectiveness of chitin/chitosan as a catalyst and as a feedstock for deriving important fuels and chemicals. It displays all the reactions heterogeneously catalyzed by them along with the strategic methodology. Their important catalytic organic transformations attempted so far, have also been discussed. The future perspectives are also presented which if inculcated would improve the value addition of the waste, paving a way for greener and imperishable world.

show abstract

“…An optimized 5‐HMF yield of 12.1 % was obtained at 174 °C in 2.2 wt % H 2 SO 4 solution after 37 min. Besides mineral acids, nine acidic ILs with different cations and anions were screened; the acidity, hydrogen‐bonding capacity and steric hindrance of ILs exhibited combined influences on the reaction. N ‐Methyl imidazolium hydrogen sulfate ([Mim]HSO 4 ) afforded the highest 5‐HMF yield of 29.5 % from chitosan and 19.3 % from chitin at 180 °C after 5 h. The 5‐HMF yield was the highest from chitin and chitosan among literatures reported to date.…”

Section: Chitin Conversion Into Chemicalsmentioning

confidence: 99%

“…An optimized 5-HMF yield of 12.1 %w as obtained at 174 8Ci n 2.2 wt %H 2 SO 4 solution after 37 min. Besides mineral acids, [64] nine acidic ILs with different cations and anions werescreened; the acidity,h ydrogen-bonding capacitya nd steric hindrance of An alternative transformation strategy was proposed by Hou and co-workersw ho utilized concentrated ZnCl 2 solution as the reactions olvent. [65] After optimization, 21.9 %, 2.8 %, 10.1 %, and 9.0 %y ields of 5-HMF were obtained from GlcNH 2 ,G lcNAc, low molecular weightc hitosan, and chitin, respectively,i n 67 wt %Z nCl 2 solution at 120 8Ca fter 1.5 h. Notably, the yield from GlcNAc was apparently lower,i ndicating Zn 2 + -promoted 5-HMF formation occurred by interaction with the amino group on the substrate.…”

Section: Furan Derivatives (Without Nitrogen)mentioning

confidence: 99%

Shell Biorefinery: Dream or Reality?

Chen

Yang

Yan

2016

Chemistry A European J

211

142

View full text Add to dashboard Cite

Shell biorefinery, referring to the fractionation of crustacean shells into their major components and the transformation of each component into value-added chemicals and materials, has attracted growing attention in recent years. Since the large quantities of waste shells remain underexploited, their valorization can potentially bring both ecological and economic benefits. This Review provides an overview of the current status of shell biorefinery. It first describes the structural features of crustacean shells, including their composition and their interactions. Then, various fractionation methods for the shells are introduced. The last section is dedicated to the valorization of chitin and its derivatives for chemicals, porous carbon materials and functional polymers.

show abstract

Efficient conversion of chitosan into 5-hydroxymethylfurfural via hydrothermal synthesis in ionic liquids aqueous solution

Cited by 39 publications

References 40 publications

Use of Ionic Liquids in Chitin Biorefinery: A Systematic Review

Use of Ionic Liquids in Chitin Biorefinery: A Systematic Review

Valorization of Oceanic Waste Biomass: A Catalytic Perspective

Shell Biorefinery: Dream or Reality?

Contact Info

Product

Resources

About