Acid Hydrolysis of Hemicellulose From Sugarcane Bagasse

Pessoa, Adalberto; Mancilha, Ismael Maciel de; Sato, Sunao

doi:10.1590/s0104-66321997000300014

Cited by 71 publications

(64 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Millprocessed bagasse (crude bagasse from the sugar and alcohol industry) had a chemical composition of 24.4% lignin, 27.4% hemicellulose, and 43.7% cellulose, which is in agreement with the data reported for several sugarcane bagasse samples. 13,26,27 After various CTM treatments, the yields of pretreated mill-processed bagasse were in the same range as those observed in similar industrial pulping processes and varied between 75 and 94%. 5 In addition to chemical compositions of pretreated materials, Table 1 also includes mass balances for each component.…”

Section: Resultssupporting

confidence: 57%

Enzymatic hydrolysis of chemithermomechanically pretreated sugarcane bagasse and samples with reduced initial lignin content

Mendes

Siqueira

Carvalho

et al. 2011

Biotechnology Progress

View full text Add to dashboard Cite

Chemithermomechanical (CTM) processing was used to pretreat sugarcane bagasse with the aim of increasing cell wall accessibility to hydrolytic enzymes. Yields of the pretreated samples were in the range of 75-94%. Disk refining and alkaline-CTM and alkaline/sulfite-CTM pretreatments yielded pretreated materials with 21.7, 17.8, and 15.3% of lignin, respectively. Hemicellulose content was also decreased to some extent. Fibers of the pretreated materials presented some external fibrillation, fiber curling, increased swelling, and high water retention capacity. Cellulose conversion of the alkaline-CTM- and alkaline/sulfite-CTM-pretreated samples reached 50 and 85%, respectively, after 96 h of enzymatic hydrolysis. Two samples with low initial lignin content were also evaluated after the mildest alkaline-CTM pretreatment. One sample was a partially delignified mill-processed bagasse. The other was a sugarcane hybrid selected in a breeding program. Samples with lower initial lignin content were hydrolyzed considerably faster in the first 24 h of enzymatic digestion. For example, enzymatic hydrolysis of the sample with the lowest initial lignin content (14.2%) reached 64% cellulose conversion after only 24 h of hydrolysis when compared with the 30% observed for the mill-processed bagasse containing an initial lignin content of 24.4%.

show abstract

Section: Resultssupporting

confidence: 57%

Enzymatic hydrolysis of chemithermomechanically pretreated sugarcane bagasse and samples with reduced initial lignin content

Mendes

Siqueira

Carvalho

et al. 2011

Biotechnology Progress

View full text Add to dashboard Cite

show abstract

“…6 Sulfuric and hydrochloric acids are the catalysts most commonly used for this purpose. 7 In contrast to sulfuric and hydrochloric acids, phosphoric acid would be advantageous for hydrolysis, since phosphate is an obligatory nutrient in fermentation media.…”

Section: Introductionmentioning

confidence: 99%

Sugarcane bagasse hydrolysis with phosphoric and sulfuric acids and hydrolysate detoxification for xylitol production

Carvalho¹,

Batista²,

Canilha³

et al. 2004

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…wood residue, sugarcane bagasse, corn fibres, rice straw, cassava waste etc.) has received widespread interest owing to their availability, abundance and relatively low cost [4][5][6]. A parallel trend is utilization of marginal lands for cultivation of CAM bioenergy crops, such as Agave and Opuntia [7].…”

Section: Introductionmentioning

confidence: 99%

Biofuel Production by Fermentation of Water Plants and Agricultural Lignocellulosic by-Products

et al. 2016

View full text Add to dashboard Cite

Abstract. While at present most energy crops are depriving human feedstock, fermentation of agricultural residues and fast growing water plants possesses a good prospect to become a significant source for bio-fuel; as both substrates are widely available and do not require agricultural areas. Water hyacinth for instance can be cultivated in fresh, brackish or wastewater and owing to its rapid growth and availability. Since owing to its natural abundance it is considered to be an invasive plant in most continents, its utilization and use as a renewable energy source may also contribute for its dilution and control. Agricultural lignocellulosic surplus by-products are also a promising fermentable substrate for bioethanol production, as it decreases both disposal expenses and greenhouse gases emissions. This paper describes a scheme and methodology for transformation of any lignocellulosic biomass into biofuel by simple cost effective operation scheme, integrating an innovative process of mechanochemical activation pre-treatment followed by fermentation of the herbal digest and ethanol production through differential distillation. Under this approach several complex and costly staged of conventional ethanol production scheme may be replaced and by genetic engineering of custom fermenting microorganisms the fermentation process becomes a fully continuous industrial process.

show abstract

Acid Hydrolysis of Hemicellulose From Sugarcane Bagasse

Cited by 71 publications

References 0 publications

Enzymatic hydrolysis of chemithermomechanically pretreated sugarcane bagasse and samples with reduced initial lignin content

Enzymatic hydrolysis of chemithermomechanically pretreated sugarcane bagasse and samples with reduced initial lignin content

Sugarcane bagasse hydrolysis with phosphoric and sulfuric acids and hydrolysate detoxification for xylitol production

Biofuel Production by Fermentation of Water Plants and Agricultural Lignocellulosic by-Products

Contact Info

Product

Resources

About