A comparative study on the chemo-enzymatic upgrading of renewable biomass to 5-Hydroxymethylfurfural

5-hydroxymethylfurfural (HMF) obtained from renewable biomass-derived carbohydrates is a potential sustainable substitute to petroleum-based building blocks. In the present work, we constituted a comparative study on the production of HMF from two widely available real biomasses in India- Agave amer...

Full description

Saved in:

Bibliographic Details
Published in:	Journal of the Air & Waste Management Association (1995) 2020-12, Vol.70 (12), p.1218-1226
Main Authors:	Saikia, Kongkona, Rathankumar, Abiram Karanam, Ramachandran, Krishnakumar, Sridharan, Harshini, Bohra, Pranay, Bharadwaj, Nikhil, Vyas, Anisha, Kumar, Vaidyanathan Vinoth
Format:	Article
Language:	eng
Subjects:	Agave Agave americana Biomass Carbohydrates Casuarina equisetifolia Catalysis Catalysts Cellulase Cellulase - chemistry Chemicals Comparative studies Dehydration Depolymerization Endo-1,4-beta Xylanases - chemistry Environmental accounting Environmental economics Fagales Fine chemicals Fructose Furaldehyde - analogs & derivatives Furaldehyde - chemical synthesis Green economy Hydrolysis Hydroxymethylfurfural Hypocreales - enzymology Intermediates Inulinase Laccase Laccase - chemistry Lignocellulose Petroleum Polysaccharides Process parameters Saccharides Sugar Sustainability Titanium - chemistry Titanium dioxide Xylanase
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	5-hydroxymethylfurfural (HMF) obtained from renewable biomass-derived carbohydrates is a potential sustainable substitute to petroleum-based building blocks. In the present work, we constituted a comparative study on the production of HMF from two widely available real biomasses in India- Agave americana and Casuarina equisetifolia. In the initial hydrolysis studies for the production of reducing sugars, 649.5 mg/g of fructose was obtained from the hydrolysis of 5% (w/v) A. americana biomass by the enzyme inulinase in 3 h at 50°C. Similarly, upon hydrolysis of 15% (w/v) C. equisetifolia biomass by the lignocellulolytic enzymes (laccase, cellulase and xylanase) from Trichoderma atroviride, 456.65 mg/g of reducing sugars was released in 24 h at 30°C. Subsequently, the dehydration of the obtained reducing sugars to HMF was achieved with titanium dioxide as the catalyst. The dehydration of A. americana-derived fructose at 140°C led to a maximum HMF yield of 92.6% in 15 min with 10% catalyst load. Contrarily, upon optimizing the process parameters for dehydration of C. equisetifolia derived reducing sugars, the maximum HMF yield of 85.7% was obtained at 110°C in 25 min with a TiO 2 concentration of 10%. This study reports for the first time the utilization of C. equisetifolia biomass for HMF production and thus, by utilizing these inexpensive, abundantly available and highly functionalized polysaccharides, a strategical approach can be developed for the production of fine chemicals, eliminating the need of fossil-based chemicals. Implications: The catalytic upgrading of lignocellulosic biomass into high-valued platform chemicals like 5-Hydroxymethylfurfural (HMF) implies an extremely significant challenge to the attempts of establishing a green economy. Casuarina equisetifolia and Agave americana represents a sustainable feedstock for the production of HMF through catalytic integration. The present work describes a two-step reaction process where the initial depolymerization step comprises of an enzymatic hydrolysis followed by a chemical-catalyst mediated dehydration process. The utilization of a biocatalytic approach followed by mild chemical catalyst eliminates the need of hazardous chemical conversion processes. Thus, the HMF produced via sustainable can bridge the gap between carbohydrate chemistry and petroleum-based industrial chemistry because of the wide range of chemical intermediates and end-products that can be derived from this compound.
ISSN:	1096-2247 2162-2906