Pretreatment of sugarcane bagasse using hydrodynamic cavitation technology: Semi-continuous and continuous process

Hilares, Ruly Terán; Dionízio, R.M.; Prado, Carina Aline; Ahmed, Muhammad Ajaz; Silva, S.S da; Santos, Júlio César dos

doi:10.1016/j.biortech.2019.121777

Cited by 26 publications

(10 citation statements)

References 29 publications

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“…Taking into account all the potentiality associated with HC, the disclosure of semicontinuous and continuous HC-based technologies for agri-food residues pretreatment could be a viable alternative. For this purpose, Hilaresa et al (2019) [121] used HC to perform an alkaline-assisted treatment over a residue of sugarcane bagasse (SCB) in sequential batches (SB-HC), semi-continuous (SC-HC) and continuous (C-HC) approach in presence of H 2 O 2 . The efficiency of the different pretreatments have been evaluated as biomass cellulose increase and quantity of sugars released after pretreated biomass EH.…”

Section: Biomass Pretreatment Under Hydrodynamic Cavitationmentioning

confidence: 99%

Cellulose Recovery from Agri-Food Residues by Effective Cavitational Treatments

et al. 2021

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Residual biomass from agri-food production chain and forestry are available in huge amounts for further valorisation processes. Delignification is usually the crucial step in the production of biofuels by fermentation as well as in the conversion of cellulose into high added-value compounds. High-intensity ultrasound (US) and hydrodynamic cavitation (HC) have been widely exploited as effective pretreatment techniques for biomass conversion and in particular for cellulose recovery. Due to their peculiar mechanisms, cavitational treatments promote an effective lignocellulosic matrix dismantling with delignification at low temperature (35–50 °C). Cavitation also promotes cellulose decrystallization due to a partial depolymerization. The aim of this review is to highlight recent advances in US and HC-assisted delignification and further cellulose recovery and valorisation.

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Section: Biomass Pretreatment Under Hydrodynamic Cavitationmentioning

confidence: 99%

Cellulose Recovery from Agri-Food Residues by Effective Cavitational Treatments

et al. 2021

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“…To this end, Hilares and coworkers studied the hydrolysis of sugarcane bagasse employing HC in both sequential batch and continuous processes. 127 Sp far, many approaches have been explored for the mitigation of the negative effects caused by the released inhibitors. One approach targets the use of microbial strains that are almost immune to the inhibitor effects.…”

Section: Pretreatment Of Lignocellulose Biomassmentioning

confidence: 99%

“…These effects translate to short treatment times, a reduction in the use of chemicals, high energy efficiency, easier scalability, and the reduced harshness of the process. To this end, Hilares and coworkers studied the hydrolysis of sugarcane bagasse employing HC in both sequential batch and continuous processes 127 …”

Section: Upcycling Of Lignocellulosic Waste To Phasmentioning

confidence: 99%

From waste to wealth: upcycling of plastic and lignocellulosic wastes to PHAs

Abu-Thabit

Pérez-Rivero

Uwaezuoke

et al. 2021

J of Chemical Tech & Biotech

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Over the past fifty years, environmental pollution from non‐biodegradable petroleum‐based plastics has worsened and become a real threat to marine life and human health. Thus, solutions to plastic pollution are urgently needed for reducing the contamination of soil and water resources. Developing alternative biodegradable plastics derived from renewable resources is an emerging research focus that can alleviate the accumulation of plastic waste in the environment. Polyhydroxyalkanoates (PHAs) are promising biodegradable biopolymers for replacing plastics derived from fossil fuel resources. The large scale commercialization of PHAs is not yet feasible due to their high production cost, which is largely associated with the feedstock cost. Using readily available carbon sources from underutilized lignocellulosic biomass and non‐recyclable plastic wastes allows for feedstock cost reduction and for the production of value‐added PHA bioplastics, and this significantly contributes to the solution of plastic pollution in a circular economy approach. This review highlights the recent efforts for valorizing plastic and lignocellulosic wastes to produce PHAs through a biotechnological approach using a two‐step methodology. In the first step, plastic (PE, PP, PS, PET) and lignocellulosic (cellulose, hemicellulose, lignin) macromolecules are depolymerized and converted to smaller fragments/monomers, which will be utilized for the subsequent bio‐upcycling step via fermentation process to produce PHAs. Pyrolyzed plastic wastes and hydrolysates from lignocellulosic waste biomass will facilitate the transition from linear to circular economy, lower the production cost of PHAs, and contribute to the solution of plastic pollution in a practical, economical, and sustainable approach. © 2021 Society of Chemical Industry (SCI).

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“… [5] , [26] , [33] , [24] . Combination of intense shear and hydroxyl radicals have also been harnessed for a range of physico-chemical processes such as pre-treatment of waste biomass [11] , [3] , [18] , [19] ). HC is therefore touted as a very promising platform [9] , [13] , [17] .…”

Section: Introductionmentioning

confidence: 99%