Acetyl-assisted autohydrolysis of sugarcane bagasse for the production of xylo-oligosaccharides without additional chemicals

Zhang, Weiwei; You, Yanzhi; Lei, Fuhou; Li, Pengfei; Jiang, Jianxin

doi:10.1016/j.biortech.2018.06.039

Cited by 92 publications

(35 citation statements)

References 37 publications

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“…Products obtained from hemicellulose, cellulose and lignin using hydrothermal processing for the fractionation of lignocellulosic biomass in terms of biorefinery are summarized in Table 2. Recently, a~50% XOS yield was obtained from hydrothermal pretreatment of sugarcane bagasse at 200°C for 10 min (Zhang et al, 2018). Under an isothermal regime (180°C for 20 min [logR 0 ] = 3.85), 15.31 g/L of XOS were obtained from hydrothermal pretreatment of agave bagasse (Aguilar et al, 2018b).…”

Section: Multiproduct Biorefinery Using Hydrothermal Pretreatmentmentioning

confidence: 99%

Engineering aspects of hydrothermal pretreatment: From batch to continuous operation, scale-up and pilot reactor under biorefinery concept

Ruiz

Conrad

Sun

et al. 2020

Bioresource Technology

271

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Different pretreatments strategies have been developed over the years mainly to enhance enzymatic cellulose degradation. In the new biorefinery era, a more holistic view on pretreatment is required to secure optimal use of the whole biomass. Hydrothermal pretreatment technology is regarded as very promising for lignocellulose biomass fractionation biorefinery and to be implemented at the industrial scale for biorefineries of second generation and circular bioeconomy, since it does not require no chemical inputs other than liquid water or steam and heat. This review focuses on the fundamentals of hydrothermal pretreatment, structure changes of biomass during this pretreatment, multiproduct strategies in terms of biorefinery, reactor technology and

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Section: Multiproduct Biorefinery Using Hydrothermal Pretreatmentmentioning

confidence: 99%

Engineering aspects of hydrothermal pretreatment: From batch to continuous operation, scale-up and pilot reactor under biorefinery concept

Ruiz

Conrad

Sun

et al. 2020

Bioresource Technology

271

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“…Therefore, a suitable reaction condition is required so as to achieve the highest XOS yield. Three main parameters that affect both the degradation rate and the selectivity, including FA concentration (1-3%), hydrolysis time (15-60 min) and hydrolysis temperature (130-170 o C), were investigated [7], and the results, presented as contents of furfural, xylose and XOS with a DP range of 2-6, are displayed in Figs. 1a − 1c.…”

Section: Resultsmentioning

confidence: 99%

“…Like other brous residues, SCB contains high amounts of polysaccharides, especially for cellulose and hemicellulose [5,6]. Because of its lower ash content, the feedstock SCB has numerous advantages over other agro-based residues (such as corn stover and wheat straw); thus, it is the preferred candidate for biore nery [7].…”

Section: Introductionmentioning

confidence: 99%

A novel recyclable furoic acid-assisted pretreatment for sugarcane bagasse biorefinery in co-production of xylooligosaccharides and glucose

Dai

Huang

Jiang

et al. 2020

Preprint

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Background: Pretreatment is the key step for utilizing lignocellulosic biomass, which can extract cellulose from lignin and disrupt its recalcitrant crystalline structure to allow much more effective enzymatic hydrolysis; and organic acids pretreatment with dual benefic for generating xylooligosaccharides and boosting enzymatic hydrolysis has been widely used in adding values to lignocellulose materials. In this work, furoic acid, a novel recyclable organic acid as catalyst, was employed to pretreat sugarcane bagasse to recover the xylooligosaccharides fraction from hemicellulose and boost the subsequent cellulose saccharification. Results: The FA-assisted hydrolysis of sugarcane bagasse using 3% furoic acid at 170 oC for 15 min resulted in the highest xylooligosaccharides yield of 45.6%; subsequently, 83.1 g/L of glucose was harvested by a fed-batch operation with a solid loading of 15%. Overall, a total of 120 g of xylooligosaccharides and 335 g glucose could be collected from 1000 g sugarcane bagasse starting from the furoic acid pretreatment. Furthermore, furoic acid can be easily recovered by cooling crystallization.Conclusion: This work put forward a novel furoic acid pretreatment method to convert sugarcane bagasse into xylooligosaccharides and glucose, which provides a strategy that the sugar and nutraceutical industries can be used to reduce the production cost. The developed process showed that the yields of xylooligosaccharides and byproducts were controllable by shortening the reaction time; meanwhile, the recyclability of furoic acid also can potentially reduce the pretreatment cost and potentially replace the traditional mineral acids pretreatment.

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“…As a very common agricultural subproduct, with more than 46 Mtons/year production, sugarcane bagasse autohydrolysis was also studied aiming to higher yields of low DP XOS, which were maximized at 200 • C with a reaction time of 10 min [68]. Then, 11.63 g/L of xylooligosaccharides were produced, of which 98% had a degree of polymerization between 2 and 5.…”

Section: Application To Lignocellulosic Waste Residuesmentioning

confidence: 99%

“…In both cases, a purification step (usually based on membranes) is needed. Low DP-XOS (0.12 g/g) [68] Note: H is the severity factor (Log (R0)).…”

Section: Application To Lignocellulosic Waste Residuesmentioning

confidence: 99%

Production of Oligosaccharides from Agrofood Wastes

et al. 2020

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The development of biorefinery processes to platform chemicals for most lignocellulosic substrates, results in side processes to intermediates such as oligosaccharides. Agrofood wastes are most amenable to produce such intermediates, in particular, cellooligo-saccharides (COS), pectooligosaccharides (POS), xylooligosaccharides (XOS) and other less abundant oligomers containing mannose, arabinose, galactose and several sugar acids. These compounds show a remarkable bioactivity as prebiotics, elicitors in plants, food complements, healthy coadyuvants in certain therapies and more. They are medium to high added-value compounds with an increasing impact in the pharmaceutical, nutraceutical, cosmetic and food industries. This review is focused on the main production processes: autohydrolysis, acid and basic catalysis and enzymatic saccharification. Autohydrolysis of food residues at 160-190 • C leads to oligomer yields in the 0.06-0.3 g/g dry solid range, while acid hydrolysis of pectin (80-120 • C) or cellulose (45-180 • C) yields up to 0.7 g/g dry polymer. Enzymatic hydrolysis at 40-50 • C of pure polysaccharides results in 0.06-0.35 g/g dry solid (DS), with values in the range 0.08-0.2 g/g DS for original food residues.Fermentation 2020, 6, 31 2 of 27 forestall engineering approaches, to name a few. Lignocellulosic biomass, of any origin is, therefore, a most promising raw material for biorefineries, considering such facilities as integrated refineries turning biomass into fuels, platform chemicals, food, feed and materials using integrated processes with an optimized used of resources [4]. This vision can be extended to resources of aquatic origin (seaweed, seagrass and microalgae) as well as residues from livestock [5,6]. In general, apart from forestall and energy crops biomass, most of it depends on the production of biomass and, in particular, food wastes [7,8]. While more than 100,000 M tons of biomass wastes are yearly produced [7], wastes strictly considered as food wastes (foods not consumed from any part of the food supply chain or any part of the food that is non edible and, therefore, becomes a residue) account for more than 1300 M tons each year [8]. The valorization of biomass wastes into a plethora of useful energy vectors, chemical compounds and ingredients receives a notable amount of interest from all stakeholders, including researchers and entrepreneurs. They are a source to several value-added products, such as monosaccharides (glucose, xylose, mannose, fructose, arabinose and more), oligosaccharides (fructoor FOS, xylo-or XOS, galacto-or GOS, galacturonic-or GALOS, lactosucrose, etc.), biofuels (ethanol, butanol, dimethylether -DME-, biodiesel, hydrogen), bioactive compounds (flavonoids, phenolic acids, terpenes, terpenoids, carotenoids), nanocellulose (bacterial, wood-related), lignin and its derivatives (a source of aromatics from biomass and prospective substitute of the aromatic or BTEX fraction produced in oil refineries) [8]. Oligomers from cellulose, hemicellulose, lignin, pectin and oth...

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Acetyl-assisted autohydrolysis of sugarcane bagasse for the production of xylo-oligosaccharides without additional chemicals

Cited by 92 publications

References 37 publications

Engineering aspects of hydrothermal pretreatment: From batch to continuous operation, scale-up and pilot reactor under biorefinery concept

Engineering aspects of hydrothermal pretreatment: From batch to continuous operation, scale-up and pilot reactor under biorefinery concept

A novel recyclable furoic acid-assisted pretreatment for sugarcane bagasse biorefinery in co-production of xylooligosaccharides and glucose

Production of Oligosaccharides from Agrofood Wastes

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