Bio-based products from xylan: A review

Naidu, Darrel Sarvesh; Hlangothi, Shanganyane Percy; John, Maya Jacob

doi:10.1016/j.carbpol.2017.09.064

Cited by 270 publications

(126 citation statements)

References 151 publications

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“…Table shows physicochemical composition of SH, WB, F. According to Table , WB contains a higher percentage of cellulose and hemicellulose than F; however, WB contains a higher percentage of lignin which protects the accessibility to cellulose and hemicelluloses (Banerjee et al ., ). Moreover, the most abundant hemicellulose type is xylan (Naidu et al ., ). Therefore, although the hemicellulose content of F was lower than WB, hemicellulose in F under SmF would be more accessible to enzymatic attack than cellulose and this fact would explain the higher Xyl/EG ratio obtained.…”

Section: Resultsmentioning

confidence: 97%

Screening of different agroindustrial by‐products for industrial enzymes production by fermentation processes

Taddia

Boggione

Tubío

2018

Int J of Food Sci Tech

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Agroindustrial by-products are an abundant source of biocompounds that contain valuable nutrients, which are not exploited. In this work, lignocellulosic wastes (LW) were used in submerged fermentation (SmF) and solid-state fermentation (SSF) by Aspergillus niger NRRL3 to obtain valuable enzymes required in industries. SmF using soya bean hulls (SH), wheat bran (WB) and a by-product of wheat flour (F) produced the highest activities of endo-1,4-b-xylanase (Xyl) and endo-1,4-b-D-glucanase (EG) being at least 3 times lower than those obtained by SSF. The highest ratio of Xyl to EG was obtained in SmF with F. Xyl obtained by SmF with WB was the most thermally resistant. The enzymatic extract obtained in SmF using SH presented a high power of saccharification. The production of enzymes for further application such as bioethanol generation process revalue these LW and can help offset growing environmental problems. Solid-state fermentationThe effect of the best LW for enzymatic production in SmF (SH, WB and F) was also studied in SSF. Two grams of the selected substrates and 10 mL of the The hydrolytic activity against 1% xylan w/v and 1% w/v CMC in 50 mM citrate buffer (pH 5.3) was determined to evaluate the substrate specificity of Xyl and

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Section: Resultsmentioning

confidence: 97%

Screening of different agroindustrial by‐products for industrial enzymes production by fermentation processes

Taddia

Boggione

Tubío

2018

Int J of Food Sci Tech

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“…15,16 In plant cell walls, hemicelluloses are the bridges to connect cellulose and lignin. Hemicelluloses are mainly composed of hexose, pentose, uronic acid, and acetylated sugars, 17 which can be divided into three sub-groups (xylans, mannans, and xyloglucans). 17 The polysaccharides in hemicelluloses are significantly different in different hardwood, softwood, and gramineae species 2 (Fig.…”

Section: Hemicellulosesmentioning

confidence: 99%

High value‐added monomer chemicals and functional bio‐based materials derived from polymeric components of lignocellulose by organosolv fractionation

Zhang

Cai

Qin

et al. 2019

Biofuels Bioprod Bioref

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Organosolv fractionation (OF) is a promising method for lignocellulosic biomass biorefining to produce biofuels, biochemicals, and biomaterials. The fractionated polymeric components may be good feedstocks to produce bio‐based materials such as green polymers via chemical or biological conversion. However, related work to specify the bio‐based materials production via organosolv fractionation of lignocellulosic biomass is relatively scarce. In this work we have provided a comprehensive review of typical organosolv fractionation for isolating cellulose, hemicelluloses, and lignin, as well as the high value‐added monomer chemicals and functional materials derived from the fractionated components and their potential applications developed in recent years, primarily including the modified cellulose fibers for polymer materials, cellulose nanocrystals (CNCs), polysaccharide‐derived platform precursors for synthesis of bio‐based polymers, lignin‐derived dispersants, surfactants, carbon materials, and hemicellulose‐derived functional materials, etc. This work suggests that organosolv fractionation of lignocellulosic biomass could be a good entry to biomass refinery for high value‐added and functional materials production. However, there are still many challenges that should be overcome in terms of the fundamental, technical, and economic aspects for the organosolv fractionation process, formation of precursor compounds, synthesis of the bio‐based materials, design of product properties and functions, and the integration of the entire process. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…The use of xylan for biomedical applications is based on its important biocompatibility and selective degradation in the gastrointestinal tract, which occurs in the colon through enzymatic hydrolysis by the microbiota. Our group has lately exploited this feature in order to develop colon-specific drug delivery systems [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Water-in-Water Emulsion as a New Approach to Produce Mesalamine-Loaded Xylan-Based Microparticles

et al. 2019

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The water-in-water emulsion method has been reported as a technique able to prepare microparticles without using harmful solvents. However, there are few reports showing the encapsulation of small molecules into microparticles produced within this technique. The probable reason relays on the rapid diffusion of these molecules from the discontinuous phase to the continuous phase. In the present study, xylan microparticles containing mesalamine were produced and the doubled crosslinking approach, used to promote higher encapsulation rates, was disclosed. To achieve this goal, a 23 full factorial design was carried out. The results revealed that all formulations presented spherical-shaped microparticles. However, at specific conditions, only few formulations reached up to 50% of drug loading. In addition, the new xylan-based microparticles formulation retained almost 40% of its drug content after 12 h of a dissolution assay likely due to the degree of crosslinking. Thus, the doubled crosslinking approach used was effective on the encapsulation of mesalamine and may pave the way to successfully produce other polysaccharide-based carriers for clinical use.

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Bio-based products from xylan: A review

Cited by 270 publications

References 151 publications

Screening of different agroindustrial by‐products for industrial enzymes production by fermentation processes

Screening of different agroindustrial by‐products for industrial enzymes production by fermentation processes

High value‐added monomer chemicals and functional bio‐based materials derived from polymeric components of lignocellulose by organosolv fractionation

Water-in-Water Emulsion as a New Approach to Produce Mesalamine-Loaded Xylan-Based Microparticles

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