Detoxification of sugarcane bagasse hydrolysate with different adsorbents to improve the fermentative process

Candido, João Paulo; Claro, Elis Marina Turini; Paula, Carolina Bilia Chimello de; Shimizu, Felipe Lange; Leite, Dilza Aparecida Nalin de Oliveria; Brienzo, Michel; Angelis, Dejanira de Franceschi de

doi:10.1007/s11274-020-02820-7

Cited by 31 publications

(6 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the diluted acid pretreatment needs to be of low severity in order to avoid the degradation of xylan components 23 . The furfural and acetic acid released are toxic to fermenting microorganisms 26 . To avoid the degradation of xylose into furfural, the pretreatment applied in the present study was with low acid concentration (2% m/v).…”

Section: Resultsmentioning

confidence: 99%

“…To avoid the degradation of xylose into furfural, the pretreatment applied in the present study was with low acid concentration (2% m/v). Diluted acid pretreatment (2% m/v) of sugarcane bagasse (passed through a 20‐mesh sieve) gave 42.66 mg L −1 of furfural, 0.18 mg L −1 of formic acid and 12.53 mg L −1 of hydroxymethylfurfural 26 . The authors observed that an increase in the acid concentration to 5% (m/v) increased the furfural up to 234.63 mg L −1 , which still lowers the formation of degradation products.…”

Section: Resultsmentioning

confidence: 99%

“…However, the hemicellulose (xylan, arabinan and acetic acid) removal was up to 28.01% (Table 3). The acid pretreatment can generate sugar degradation products; however, the conditions applied are recognized to produce a low amount of degradation products 26 . Acid pretreatment under dilute conditions can hydrolyze the xylan into xylose and also into XOS 30,31 .…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Sieving process selects sugarcane bagasse with lower recalcitrance to xylan solubilization

Alves

Melati

Casagrande

et al. 2020

J of Chemical Tech & Biotech

Self Cite

View full text Add to dashboard Cite

BACKGROUNDSugarcane bagasse is a heterogeneous and organized material that needs a pretreatment to access the polysaccharides (cellulose and xylan). The particle size of a non‐milled bagasse can influence the xylan and xylose solubilization, as well as the enzymatic hydrolysis of the pretreated material. Using bagasse selected on 16‐, 30‐, 40‐ and 50‐mesh sieves: xylan solubilization was performed with hydrogen peroxide; xylose was solubilized with diluted sulfuric acid; and enzymatic hydrolysis was conducted for glucose yield evaluation.RESULTSThe xylose solubilized by acid pretreatment resulted in a maximum of 6.59 g L−1 with no influence of particle size. The solubilized xylan showed linear correlation with a variation of 36.18% (16‐mesh bagasse) to 71.43% (<50‐mesh bagasse). Pretreated material submitted to enzymatic hydrolysis revealed that particle size influenced the pretreatment, increasing the glucose yield.CONCLUSIONSThe results showed that non‐milled sugarcane bagasse particle size selection positively influenced the solubilization of xylan, improving the enzymatic hydrolysis of the pretreated material. © 2020 Society of Chemical Industry (SCI)

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Sieving process selects sugarcane bagasse with lower recalcitrance to xylan solubilization

Alves

Melati

Casagrande

et al. 2020

J of Chemical Tech & Biotech

Self Cite

View full text Add to dashboard Cite

show abstract

“…Hemicelluloses have been shown to produce gels, films, coatings, adhesives, gelling, stabilizing, and viscosityenhancing additives in food and pharmaceuticals [20]. In the energy context, hemicellulose can be hydrolyzed into fermentable sugars for fermentation (ethanol) [21]. With a catalytic approach, hemicellulose can be converted into intermediate compounds such as xylitol, furfural, and levulinic acid used for the production of chemicals and polymers [19].…”

Section: Introductionmentioning

confidence: 99%

Xylan Solubilization from Partially Delignified Biomass, and Residual Lignin Removal from Solubilized Xylan

et al. 2023

Self Cite

View full text Add to dashboard Cite

Xylan is a macromolecule of industrial interest that can be solubilized from lignocellulosic materials, such as sugarcane bagasse, which is a renewable source. However, the solubilization methods of xylan need to be better developed for use in industrial applications. The main objective of this study was to evaluate xylan solubilization methods with higher yields and purity by using biomasses/fractions of sugarcane: leaf and stem, internode, node, and external fraction. Two strategies were evaluated by applying diluted sodium chlorite, sodium sulfite, and hydrogen peroxide: a delignification of the biomass before xylan solubilization; and the delignification of the solubilized xylan for residual lignin removal. The delignification of the biomass before the xylan solubilization enabled to identify material and specific conditions for yields higher than 90%. Residual lignin varied from 3.14 to 18.06%, with hydrogen peroxide in alkaline medium partial delignification shown to be effective. The delignification of xylan presented better results using diluted hydrogen peroxide, with a reduction of 58.44% of the initial lignin content. The solubilized xylans were used as a substrate for xylanase activities, resulting in higher activity than commercial xylan. In the delignification of the biomasses, hydrogen peroxide was the reagent with better results concerning the yield, purity, and solubility of the xylan. This reagent (diluted) was also better in the delignification of the solubilized xylan, resulting in lower residual lignin content. The solubility and purity tests (low salt content) indicated that the solubilized xylan presented characteristics that were similar to or even better than commercial xylan.

show abstract

“…The diluted sulfuric acid weakens the hydrolyzed glycosidic bonds in hemicellulose, lignin-hemicellulose bond, and lignin bond that leads to the dissolution of sugar from hemicellulose, generating high hydrolysis yields and increasing the porosity of the plant cell wall [13]. However, during acid and hydrothermal pretreatments, can occurs generation of inhibitors and/or deactivators of enzymes and toxic substances affect the quality of enzymatic hydrolysis [14].…”

Section: Introductionmentioning

confidence: 99%

Lignin Removal and Cellulose Digestibility Improved by Adding Antioxidants and Surfactants to Organosolv Pretreatment of Sugarcane Bagasse

2021

Self Cite

View full text Add to dashboard Cite

Annually, tons of sugarcane bagasse are generated in the sugar and alcohol industries. This biomass has great potential in the use of converting cellulose into glucose, an energy currency for various biotechnological processes. However, lignin content is a limiting factor in cellulose accessibility. This study aimed to improve lignin removal by evaluating the additive's effect on biomass pretreatment. The additives were tert-butylhydroquinone, 3-tert-butyl-4-hydroxyanisole, methyl 3,4,5-trihydroxybenzoate; surfactants Tween 20, Tween 80, and dimethyl sulfoxide (DMSO). The antioxidants collaborated with lignin removal; the 3-tert-butyl-4-hydroxyanisole reached 71% of lignin removal. Inherent to the pretreatment, tert-butylhydroquinone showed 23.53% and 89.54% of cellulose and hemicellulose removal, respectively. Dioxane extraction compounds from the pretreated biomass showed an increased amount using additives, suggesting more compounds adsorbed on the material surface. All the antioxidants/surfactants applied to the organosolv pretreatment improved enzymatic hydrolysis, reaching 98.9% cellulose into glucose conversion (Tween 80). The use of chemical compounds during pretreatment beneficed the removal of lignin from biomass and consequently the cellulose hydrolysis.

show abstract

Detoxification of sugarcane bagasse hydrolysate with different adsorbents to improve the fermentative process

Cited by 31 publications

References 60 publications

Sieving process selects sugarcane bagasse with lower recalcitrance to xylan solubilization

Sieving process selects sugarcane bagasse with lower recalcitrance to xylan solubilization

Xylan Solubilization from Partially Delignified Biomass, and Residual Lignin Removal from Solubilized Xylan

Lignin Removal and Cellulose Digestibility Improved by Adding Antioxidants and Surfactants to Organosolv Pretreatment of Sugarcane Bagasse

Contact Info

Product

Resources

About