Article
Biochemistry & Molecular Biology
Eva Balaguer Moya, Berta Syhler, Julen Ordenana Manso, Giuliano Dragone, Solange I. Mussatto
Summary: This study evaluated the optimization of enzymatic hydrolysis cocktail to maximize sugar extraction from pretreated sugarcane bagasse. It was found that adding hydrogen peroxide at the beginning of hydrolysis increased glucose and xylose concentrations, while the addition of hemicellulase increased glucose and xylose production. These findings suggest that using an appropriate enzymatic cocktail supplemented with additives can enhance sugar extraction from lignocellulosic biomass and contribute to the development of a more sustainable and competitive process.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Multidisciplinary
Prapassorn Rugthaworn, Udomlak Sukatta, Prakit Sukyai
Summary: This study investigated the effect of ultrasound-assisted hydrogen peroxide (H2O2) pretreatment on sugar cane bagasse (SCB) followed by Monascus purpureus TISTR 3003 cultivation for lovastatin production under solid-state fermentation (SSF). The optimization results showed that the lovastatin production was 2347.10 +/- 17.19 mu g/g under the optimum conditions, which is 2.4 times higher than that under untreated conditions. Scanning electron microscopy analysis revealed changes in the surface structure of the treated SCB.
Article
Construction & Building Technology
Veronica Torres de Sande, Monower Sadique, Paloma Pineda, Ana Bras, William Atherton, Mike Riley
Summary: This research investigates the use of poor reactive agro-industrial ashes as sand replacement in cement-based materials, aiming to achieve sustainable use and waste reduction. The results suggest that utilizing agro-industrial ashes as substitutes for natural aggregates can potentially improve compressive strength and durability of bio-concretes.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Thaynara C. Pin, Sarita C. Rabelo, Yunqiao Pu, Arthur J. Ragauskas, Aline C. Costa
Summary: Ionic liquids, specifically PILs, have shown potential in selectively solubilizing lignin and enabling high yield and productivity in fermentation processes. The design of PILs influences lignin characteristics, while pretreatment temperature and time do not. The recovered lignins are sulfur-free and have functional groups that make them suitable for conversion into various value-added products in a biorefinery context.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Wuhuan Li, Xuesong Tan, Changlin Miao, Zhanying Zhang, Yunxuan Wang, Arthur J. Ragauskas, Xinshu Zhuang
Summary: This study utilized acetone/phenoxyethanol/water (APW) solutions to pretreat sugarcane bagasse and improve sugar production in enzymatic hydrolysis. The optimal pretreatment conditions were determined to be 125 degrees C-120 min, 0.17 M H2SO4, and a liquid-solid ratio of 15, resulting in high lignin removal and cellulose digestibility. The APW process also showed effective fractionation of other biomass feedstocks, such as pine, corn stalk, and bamboo.
Article
Energy & Fuels
Yamil Nahun Solier, Paulina Mocchiutti, Maria Noel Cabrera, Mario Carlos Nazareno Saparrat, Miguel Angel Zanuttini, Maria Cristina Inalbon
Summary: This study successfully isolated hemicelluloses from sugar cane bagasse using an alkali treatment and ethanol precipitation method. The effects of sodium hydroxide and hydrogen peroxide on the extraction and precipitation yields were investigated, and it was found that both alkali and peroxide had significant effects on the yields. Additionally, the susceptibility of bagasse for cellulolytic enzymatic hydrolysis was improved.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Biochemistry & Molecular Biology
Amanda Parra-Campos, Liliana Serna-Cock, Jose Fernando Solanilla-Duque
Summary: This study evaluated the effect of incorporating fique bagasse microparticles (FBM) in a cassava starch-based foamed material, and determined the optimum conditions for extracting FBM. The results showed that FBM has potential for use in obtaining biobased materials.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Multidisciplinary
Thalita J. Bondancia, Gustavo Batista, Jessica de Aguiar, Marcos Lorevice, Antonio J. G. Cruz, Jose M. Marconcini, Luiz H. C. Mattoso, Cristiane S. Farinas
Summary: The study evaluated the production of CNCs using organic and/or inorganic acid hydrolysis in a sugar cane biorefinery through TEA and LCA. The citric acid hydrolysis and recovery steps had significant environmental impacts, accounting for up to 58% of the global warming potential values for Cit-CNC and Cit-S-CNC. This highlights the importance of using TEA and LCA tools for decision making in future biorefineries when selecting nanocellulose isolation routes.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Energy & Fuels
Yalew Woldeamanuel Sitotaw, Nigus G. Habtu, Abaynesh Yihdego Gebreyohannes, Tom Van Gerven
Summary: This study evaluated the use of ultrasound-assisted alkaline pretreatment to reduce the recalcitrance of sugarcane bagasse and Enset fiber and enhance glucose production from enzymatic hydrolysis. The results showed that ultrasound-assisted alkaline pretreatment significantly increased glucose production compared to the conventional approach, while also reducing pretreatment time and NaOH consumption. Overall, the combined pretreatment approach using alkali and ultrasound improved cellulose accessibility and increased glucose production.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Engineering, Multidisciplinary
P. Jagadesh, A. Ramachandramurthy, R. Murugesan
Summary: The particle size, distribution, and microstructure of cement have a significant impact on the mechanical and durability properties of mortar and concrete. The mechanical properties and microstructure of Original Sugar Cane Bagasse Ash (OSCBA) can be improved after treatment. Parameters such as grinding conditions and burning process influence the morphological characteristics. Blending treated and untreated bagasse ash with cement can significantly improve the performance of the blended cement.
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES
(2022)
Article
Construction & Building Technology
Ping Huang, Bocong Huang, Jiajia Li, Nengsen Wu, Qing Xu
Summary: Ultra-high-performance concrete (UHPC) is a research focus in cementitious materials due to its excellent mechanical properties and durability. However, high production cost limits its development. Sugar cane bagasse ash (SCBA), with pozzolanic characteristics, has been studied as an alternative cementitious material. This study used SCBA as an active filler to replace quartz powder (QP) in UHPC and found that it improved the strength through pozzolanic reaction and internal curing, reducing production cost and environmental impact.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Agronomy
Chandan Kumar Gupta, A. K. Sachan, Rakesh Kumar
Summary: This study investigated the microstructural characteristics of sugar cane bagasse ash (SCBA) and the feasibility of replacing cement with SCBA in cement mortar. The findings suggest that replacing cement with SCBA above 10% leads to dry mix and incomplete hydration process, resulting in decreased strength. Consistency of cement increases with higher percentages of SCBA, while compressive strength peaks around 10%, showing better results than samples with constant consistency.
Article
Biotechnology & Applied Microbiology
Priyanka Nath, Premeshworii Devi Maibam, Shweta Singh, Vikky Rajulapati, Arun Goyal
Summary: Sequential pretreatments of sugarcane bagasse with NaOH and organosolv under mild conditions significantly improved cellulose recovery and delignification. Enzymatic hydrolysis of the best sequentially pretreated scb resulted in higher total reducing sugar and glucose yields compared to organosolv pretreated scb. Additionally, higher enzymatic digestibility and ethanol yield were achieved with sequential pretreatment, likely due to enhanced cellulose exposure and higher crystallinity index.
Article
Construction & Building Technology
Gabriela Pitolli Lyra, Maria Victoria Borrachero, Lourdes Soriano, Jordi Paya, Joao Adriano Rossignolo
Summary: Potassium extraction increases the concentration of silica, leading to enhanced pozzolanic reactivity of the ashes.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Chemical
Parisa Doubra, Paramespri Naidoo
Summary: In this study, gas hydrate separation technology was successfully applied to concentrate sugar cane juice, showing a reduction in energy consumption of about 20% compared to traditional evaporation methods used in sugar factories. The experiments demonstrated the efficiency of using gas hydrate formation for concentrating fruit juice, trapping water in crystalline cages to increase the solids content.
Article
Chemistry, Physical
P. Belmonte, J. M. Garcia-Vargas, J. F. Rodriguez, I. Garrido, M. T. Garcia, M. J. Ramos
Summary: In this study, four polythiourethane films with different types of polyols and isocyanates were synthesized, characterized, and foamed. The results showed that the type of isocyanate greatly influenced the crystallinity and stiffness of the polymers, while the type of polyol modified the FT-IR spectra and the decomposition curve of the material with temperature. Furthermore, the choice of isocyanate also affected the properties of the foams obtained from the polymeric material.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Xutao Zhu, Jianguo Yan, Shouchun Liu, Fengling Zhu
Summary: This study experimentally assessed the hydrodynamic characteristics of supercritical-pressure R134a in a horizontal circular tube. It was found that the hydrodynamic characteristic curve of R134a under supercritical pressure does not have a negative-slope region but a transition region. The transition region becomes more evident with increasing heat flux, while it weakens with increasing pressure and inlet temperature. Moreover, the onset of the transition region shifts in the direction of high mass flow rate with increasing heat flux.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Stefania Mottola, Iolanda De Marco
Summary: In this study, corticosteroids were micronized with cyclodextrin using Supercritical Assisted Atomization (SAA), resulting in spherical micrometric particles with improved dissolution time.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Honghai Liu, Yu Xie, Zhilan Li, Xiaokai Zhang
Summary: This study compared the effects of supercritical carbon dioxide dewatering (SCD) and conventional kiln drying (CKD) at a temperature of 55 degrees C on the dewatering rate, moisture transfer and distribution, shrinkage, and stress characteristics of bamboo strips. The results showed that SCD had a faster dewatering rate and lower shrinkage compared to CKD, but was less effective in reducing drying stress in bamboo.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Tahmasb Hatami, Ozan N. Ciftci
Summary: This study fills the gap in previous research by establishing a hierarchy of significance for factors affecting SFE profitability, providing a deeper understanding of how technical and economic factors impact profitability. The findings highlight that the SFE facility becomes profitable when the extractor capacity surpasses 42 L.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Tingshan Guo, Chuang He, Zhiyuan Liang, Qinxin Zhao
Summary: The initial oxidation behavior of Fe10Cr and Fe20Cr alloys in supercritical H2O and supercritical CO2 with O2 has been investigated. The results show that O2 has the highest adsorption energy on FeCr alloys and reacts faster than H2O and CO2.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Vikash Chandra Roy, Jin-Seok Park, Ahmed Redwan Haque, Md Sadek Ali, Hee-Jeong Lee, Byung-Soo Chun
Summary: This research aimed to valorize brewery spent grain (BSG) using subcritical water hydrolysis (SWH) modified by six different natural deep eutectic solvents (DES) and determining their bipotentialities. The findings showed that BSG hydrolysates obtained through DES-induced SWH contained high levels of sugars, proteins, flavonoids, phenolic compounds, and essential amino acids. The hydrolysates also demonstrated antimicrobial activities, and the presence of bioactive compounds was confirmed through FT-IR analysis. This comprehensive profiling of bioactive compounds from BSG using DES-mediated SWH can contribute to the efficient valorization of BSG for industrial purposes.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Kailiang Zhang, Hanyu Wang, Tong Liu, Zhu Wang, Lvxing Wang, Ping Fan, Feng Chen, Mingqiang Zhong, Bozhen Wu, Shanqiu Liu, Jintao Yang
Summary: This study investigates the influence of foam cell structure on the electromagnetic interference shielding performance of conductive polymer composite foam. The results suggest that foamed composites exhibit improved EMI shielding performance, and bimodal cell foams have higher electric conductivity but lower EMI shielding compared to uniform cell foams.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Jaromir Valtr, Petr Roztocil, David Dasek, Radek Musalek, Frantisek Lukac, Jakub Klecka, Marek Janata, Mariana Arnoult-Ruzickova, Eva Mistova, Ludek Jelinek, Petr Sajdl, Jan Macak
Summary: This paper focuses on the design of an experimental facility for in-situ electrochemical testing at supercritical water conditions, including the design of the electrode system and surface insulation coating for electrode leads.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Richard Djimasbe, Mikhail A. Varfolomeev, Nailya M. Khasanova, Ameen A. Al-Muntaser, Rustam R. Davletshin, Muneer A. Suwaid, Gazinur Z. Mingazov
Summary: This study confirms the capability of supercritical water to generate active hydrogen that interacts with different fractions in unconventional feedstocks, leading to synthetic oil production during hydrothermal reactions. The findings suggest that a maximum yield of 16.78% can be achieved at a temperature of 380 oC and a reaction time of 1-12 hours.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)