Hydrodynamic cavitation-assisted alkaline pretreatment as a new approach for sugarcane bagasse biorefineries

Hilares, Ruly Terán; Santos, Júlio César dos; Ahmed, Muhammad Ajaz; Jeon, Seok Hwan; Silva, Sílvio Silvério da; Han, Jong‐In

doi:10.1016/j.biortech.2016.05.004

Cited by 77 publications

(42 citation statements)

References 25 publications

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“…The pH adjustment was appeared to be as a major contributing factor in the removal of lignin from native bagasse showing 26.27% cellulose increase followed by O5pH, O10, O15 and O15pH, showing increments in available cellulose of 24.71, 24,71, 23.81 and 23.19%, respectively (Table 1). The results are in accordance with the study of Hilares et al (2016), showing 26.47% of available cellulose in the SCB when it was alkaline pretreated by hydrodynamic cavitation. In contrast, Maryana et al (2014) reported an increment of 48% of cellulose in the bagasse pretreated with 1 M NaOH at 1:12 (total solid ratio).…”

Section: Effect Of Commercial Detergent-assisted Pretreatments On Scb Composition and Cellulose Availabilitysupporting

confidence: 91%

Commercial Washing Detergents-Assisted Alkaline Pretreatment for Lignocellulosic Sugars Production: A First Report

et al. 2021

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Lignocellulosic sugars are the major renewable building blocks for green fuels and chemicals production. However, the implication of an effective pretreatment process is an inevitable process to access the biomass sugars. Alkaline pretreatment is a viable pretreatment process, causing a selective removal of lignin, with a minimum degradation of carbohydrates, increasing porosity and surface area, eventually enhancing enzymatic hydrolysis. Here, we have assessed commercial cloth washing detergents as catalytic agents, for the lignin removal from sugarcane bagasse. Three different detergents (BrilhianteÒ (B), OmoÒ (O), Sabonito FlashÒ (F)) were tested using three different concentrations (5, 10 and 15%) with and without pH adjustment. Pretreatment with O5pH (5% OmoÒ, pH 12) showed the maximum lignin removal (81.14%) and retainment of cellulose (44.15%), and hemicellulose (29.71%) in the pretreated bagasse. The maximum sugars (26.62 g/L) were released from the O10pH-pretreated sugarcane bagasse. This study shows the potential of washing detergents as the new potential catalytic agents for the pretreatment of biomass for efficient sugars recovery and retaining maximum lignin in the pretreated substrate.

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Section: Effect Of Commercial Detergent-assisted Pretreatments On Scb Composition and Cellulose Availabilitysupporting

confidence: 91%

Commercial Washing Detergents-Assisted Alkaline Pretreatment for Lignocellulosic Sugars Production: A First Report

et al. 2021

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“…Hydrodynamic cavitation increased the temperature of the substrate by 20 • C after 20 min of pretreatment. This increase corresponds to values previously reported during the treatment of toxic compounds [19,20] and disintegration of sugarcane bagasse [8]. Some of the studies controlled the temperature of pretreatment with a water jacket or ice placed around the cavitator.…”

Section: Pretreatment Efficiencysupporting

confidence: 84%

“…This collapse of the cavities releases a very high amount of energy that causes water molecules to dissociate into radicals of hydroxyl and hydrogen (OH and H•), which can contribute to lignin removal from biomass [4][5][6]. The authors of some studies performed hydrodynamic cavitation with the addition of sodium bicarbonate, calcium hydroxide, or sodium hydroxide in order to improve delignification [7][8][9][10]. However, it is not economically justifiable to add chemical compounds to biomass during its pretreatment in a biogas plant.…”

Section: Introductionmentioning

confidence: 99%

Application of Hydrodynamic Cavitation for Improving Methane Fermentation of Sida hermaphrodita Silage

et al. 2019

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Hydrodynamic cavitation was recently applied as a biomass pretreatment method. Most of the studies which used hydrodynamic cavitation were applied to pretreated sugarcane bagasse or reed. High biomass yield of Sida hermaphrodita points out the necessity of studies on its effective pretreatment before methane fermentation, especially because its “wood-like” characteristics could present different disintegration properties than other lignocellulose biomass. Thus, the aim of the study was to investigate the influence of duration of hydrodynamic cavitation on lignocellulose composition in Sida hermaphrodita silage, and the assessment of disintegrated biomass as a substrate for methane fermentation. The study showed a slight decrease in lignin, cellulose, and hemicellulose content in biomass after hydrodynamic cavitation, which resulted in a higher content of carbohydrates in the liquid fraction of disintegrated substrates. Methane production was 439.1 ± 45.0 L CH4/kg total solids (TS) from the substrate disintegrated for 20 min. However, the most effective time for methane production was hydrodynamic cavitation of the substrate for 5 min. At this pretreatment duration, the highest values for chemical oxygen demand (COD), total organic carbon (TOC), and carbohydrate reduction were also noted. The study proved that hydrodynamic cavitation applied for 5 min allowed obtaining an energy profit of 0.17 Wh/g TS. The studies on a laboratory scale indicated that the technology of hydrodynamic cavitation of Sida hermaphrodita could be economically applied for methane fermentation on a large scale.

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“…Combined HC pretreatment and other chemical catalysts have been used for production of biofuel from different lignocellulosic feedstocks [15–18]. During HC pretreatment, highly reactive radicals (OH − and H − ) are formed in the working fluid due to the cavitation effect, which can cause deconstruction of lignin structures.…”

Section: Introductionmentioning

confidence: 99%

Delignification of corncob via combined hydrodynamic cavitation and enzymatic pretreatment: process optimization by response surface methodology

Thangavelu

Desikan

Taran

et al. 2018

Biotechnol Biofuels

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BackgroundRenewable liquid biofuel production will reduce crude oil import of India. To displace the huge quantity of fossil fuels used for energy production, this research was focused on utilization of unexploited low-cost agricultural residues for biofuel production. Corncobs are a byproduct of corn processing industry, and till now it is not utilized for biofuel production, eventhough it has high lignocellulosic concent. In this study, combined hydrodynamic cavitation and enzymatic (HCE) method was evaluated as a pretreatment method of corncob for biofuel production. The most significant process parameters namely (i) enzyme loading (3–10 U g−1), (ii) biomass loading (2.5–5.0%), and (iii) duration (5–60 min) were optimized and their effects on combined HCE pretreatment of corncob was studied through response surface methodology for lignin reduction, hemicellulose reduction and cellulose increase.ResultsThe highest lignin reduction (47.4%) was obtained in orifice plate 1 (OP1) under the optimized conditions namely biomass loading at 5%, enzyme loading at 6.5 U g−1 of biomass, and reaction duration of 60 min. The above tested independent variables had a significant effect on lignin reduction. The cavitational yield and energy consumption under the above-mentioned optimized conditions for OP1 was 3.56 × 10−5 g J−1 and 1.35 MJ kg−1, respectively.ConclusionsIt is evident from the study that HCE is an effective technology and requires less energy (1.35 MJ kg−1) than other biomass pretreatment methods.Electronic supplementary materialThe online version of this article (10.1186/s13068-018-1204-y) contains supplementary material, which is available to authorized users.

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Hydrodynamic cavitation-assisted alkaline pretreatment as a new approach for sugarcane bagasse biorefineries

Cited by 77 publications

References 25 publications

Commercial Washing Detergents-Assisted Alkaline Pretreatment for Lignocellulosic Sugars Production: A First Report

Commercial Washing Detergents-Assisted Alkaline Pretreatment for Lignocellulosic Sugars Production: A First Report

Application of Hydrodynamic Cavitation for Improving Methane Fermentation of Sida hermaphrodita Silage

Delignification of corncob via combined hydrodynamic cavitation and enzymatic pretreatment: process optimization by response surface methodology

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