Article
Energy & Fuels
Ali Oguz Buyukkileci, Nuran Temelli
Summary: Xylan, a renewable polysaccharide abundant in agricultural and forestry residues, can be hydrolyzed to produce xylooligosaccharides (XOS) and xylose. This study evaluated the use of organosolv pretreatment on corncob to retain xylan while removing lignin. The findings showed that treating corncob with 70% ethanol at 170 degrees C for 1 hour resulted in 50% lignin removal and 81% xylan recovery. Xylan digestibility and the production of xylose and XOS were achieved through enzymatic hydrolysis using commercial xylanases. The efficient utilization of xylan in lignocellulosic biorefineries can enhance sustainability.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Agricultural Engineering
Keli Ye, Yanjun Tang, Danning Fu, Tianying Chen, Mian Li
Summary: In this study, magnesium oxide was used for pretreatment of corncob to improve lignin removal and enhance sugar yield through enzymatic hydrolysis. Under optimal conditions, a high glucose and xylose yield was obtained. This work contributes to improving the corncob pretreatment process and promoting its utilization.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Agricultural Engineering
Qianqian Yang, Lei Zhang, Zhina Lian, Junhua Zhang
Summary: In this study, lactic acid was used for XOS production from corncob, achieving a XOS yield of 69.9%. Additionally, cellulase hydrolysis of corncob residue resulted in 95.6% glucose and 54.0% xylose. Bacillus subtilis YS01 was successfully cultured using the cellulase hydrolysate, with a viable count of 6.4x10(8) CFU/mL and glucose and xylose utilization rates of 99.0% and 89.8%, respectively.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Alei Zhang, Chengyong Wang, Jie Chen, Guoguang Wei, Ning Zhou, Ganlu Li, Kequan Chen, Pingkai Ouyang
Summary: This study developed an alkali freeze-thaw pretreatment protocol to enhance the enzymatic hydrolysis of chitin into GlcNAc efficiently at high concentrations. The treatment altered the surface structure of chitin, resulting in decreased crystallinity, molecular weight, and thermal stability while maintaining the chemical structure unchanged. Furthermore, the recovered alkali solution can be reused without compromising the treatment effect, demonstrating a clean and sustainable conversion of chitin into GlcNAc.
Article
Energy & Fuels
Lei Zhong, Chao Wang, Miaomiao Xu, Xingxiang Ji, Guihua Yang, Jiachuan Chen, Srinivas Janaswamy, Gaojin Lyu
Summary: The research proposes an efficient approach for biomass energy production through diluted alkali-aided methanol organosolv treatment, resulting in ultrahigh glucose yield and high value-added lignin. The mild alkali catalytic organosolv treatment and enzymatic hydrolysis achieved simultaneous high glucose yield and efficient delignification, with the recovered lignin showing excellent radical scavenging capacity for potential use in biobased functional materials.
Article
Agricultural Engineering
Xinyuan Zhang, Yiqin Wang, Jie Lu, Miaomiao Liu, Wanting Tan, Yi Cheng, Yehan Tao, Jian Du, Haisong Wang
Summary: This paper used five different types of biosurfactants to enhance the saccharification efficiency in the enzymatic hydrolysis process. The addition of sophorolipid increased the enzymatic hydrolysis efficiency by 30.65%, while the combination of sophorolipid and tea saponin further increased the efficiency to 99.56%. These biosurfactants acted synergistically to inhibit enzymatic inactivation and non-productive adsorption of lignin. This study proposes an effective method to improve enzymatic hydrolysis efficiency and reduce enzyme dosage by utilizing biosurfactants.
BIORESOURCE TECHNOLOGY
(2023)
Article
Energy & Fuels
Si Lu, Qiong Wang, Xiaoman Wang, Cuiyi Liang, Juan Fu, Zihan Xu, Zhongming Wang, Zhenhong Yuan, Jun Yue, Wei Qi
Summary: The efficient saccharification of corncob was achieved through pretreatment by magnetic carbon-based solid acid catalyst and subsequent in situ enzymatic hydrolysis in the same system. The combined two-step hydrolysis method achieved high total sugar yield, water conservation, and cost reduction, providing a sustainable and low-cost approach for lignocellulose saccharification.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Energy & Fuels
Xiao-le Liu, Zhen Fang, Xiao-fei Tian, Zheng-diao Miao
Summary: In this study, wheat straw was pretreated with a combination of ball milling (BM) and NaAlO2 particles (NaAlO2-BM) for efficient enzymatic hydrolysis. The results showed that NaAlO2-BM pretreatment significantly reduced particle size to tissue scale within 10 minutes, with 0.5 times lower energy consumption compared to BM pretreatment. The 20-minute NaAlO2-BM pretreatment achieved a glucose yield of 95.4% and the highest energy efficiency of 0.121 kg glucose/kWh, increasing by 1.1 times than BM pretreatment. Energy consumption was positively correlated with cellulose content and negatively correlated with particle size, cellulose crystallinity, and energy efficiency. The combination of BM and NaAlO2 particles proved to be a promising pretreatment approach for glucose production and improving energy efficiency during lignocellulosic hydrolysis.
Article
Biotechnology & Applied Microbiology
Opeyemi Olokede, Shen-chun Hsu, Simon Schiele, Huang Ju, Mark Holtzapple
Summary: This study examines the impact of shock pretreatment, alkaline pretreatment, and their combination on lignocellulose digestibility. Shock pretreatment increases susceptibility to hydrolysis by disrupting the structure of lignocellulose, while alkaline pretreatment removes lignin and acetyl groups. NaOH is more potent than Ca(OH)2 in enhancing digestibility, making it preferable for methane-arrested anaerobic digestion, while Ca(OH)2 is recommended for animal feed due to valuable residual calcium ions.
BIOTECHNOLOGY PROGRESS
(2022)
Article
Nutrition & Dietetics
Lili Gai, Er-Fang Ren, Wen Tian, Debao Niu, Weidong Sun, Fangxue Hang, Kai Li
Summary: This study focused on ultrasonic-assisted dual-alkali pretreatment and enzymatic hydrolysis of sugarcane bagasse followed by Candida tropicalis fermentation to produce xylitol. The results showed that the combination of NaOH and ammonia water had the best effect on xylose content. Optimal conditions for ultrasonic-assisted pretreatment and enzymatic hydrolysis were determined. The concentration ratio of enzymatic hydrolysate of sugarcane bagasse affected xylitol yield, with the highest yield obtained when concentrated three times.
FRONTIERS IN NUTRITION
(2022)
Article
Agricultural Engineering
Tianran Zheng, Luan Yang, Meili Ding, Chen Huang, Jianfeng Yao
Summary: Metal-organic frameworks (MOFs) are efficient matrices for immobilizing cellulase due to their high stability and porous morphology, which enhance enzymatic activity and stability, leading to improved cellulose hydrolysis efficiency. The research demonstrates the potential application of MOFs in lignocellulosic biomass bioconversion and other fields requiring immobilized enzymes.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Feiyun Li, Haohao Li, Hongming Lou, Fubao Sun, Yanjun Tang
Summary: The enzymatic hydrolysis cost of lignocellulose can be reduced by improving enzymatic hydrolysis and recycling cellulase by adding additives. P(SSS-co-SPE) copolymers were synthesized and exhibited upper critical solution temperature response. PSSP with high molar ratio of SSS displayed improved hydrolysis performance. When added to the hydrolysis system of corncob residues, PSSP increased the substrate enzymatic digestibility and saved cellulase amount, providing a new idea for reducing the hydrolysis cost of lignocellulose-based sugar platform technology.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Hong Liao, Yong Xu, Junhua Zhang
Summary: This study investigates a novel strategy for producing XOS from corncob using propionic acid hydrolysis, with alkaline post-treatment to remove lignin and improve saccharification efficiency. The results show that this innovative approach can efficiently produce XOS and monosaccharides from corncob.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Fucheng Chang, Wei Li, Han Hu, Fanglan Ge, Guiying Chen, Yao Ren
Summary: This study aimed to produce gamma-polyglutamic acid (gamma-PGA) from lignocellulosic biomass. By pretreating with NaOH and optimizing enzymatic hydrolysis, the production of glucose and xylose reached maximum yields. The fed batch fermentation achieved a high production of gamma-PGA, indicating the potential for industrial production. Moreover, this process utilizes environmentally friendly biological resources.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Thermodynamics
Jie Cheng, Sheng-Chun Hu, Zeng-Chao Geng, Ming-Qiang Zhu
Summary: The microwave-assisted alkaline/ethanol pretreatment (MAAP) process was used to treat cotton stalk (CS) and separate high-purity lignin and digestible cellulose-rich residue. The MAAP process produced homogeneous lignin fractions with smaller molecular weights and more phenolic OH groups compared to MWL. The crystallization index of cellulose-rich substrates increased after the MAAP integrated process, and the glucose yield reached the maximum (82.41%) after enzymatic hydrolysis. The MAAP process is a promising method for producing lignin fractions with satisfactory purity and reactivity, promoting the value-added application of cotton stalk in biorefinery.
Article
Chemistry, Physical
Sureerat Jampa, Alexander M. Jamieson, Thanyalalz Chaisuwan, Apanee Luengnaruemitchai, Sujitra Wongkasemjit
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Environmental Sciences
Akarin Boonsombuti, Rinrat Wanapirom, Apanee Luengnaruemitchai, Sujitra Wongkasemjit
WASTE AND BIOMASS VALORIZATION
(2018)
Article
Chemistry, Physical
Artita Na Rungsi, Apanee Luengnaruemitchai, Sujitra Wongkasemjit, Nuwong Chollacoop, Shih-Yuan Chen, Yuji Yoshimura
APPLIED CATALYSIS A-GENERAL
(2018)
Article
Environmental Sciences
Nicharat Manmuanpom, Uthen Thubsuang, Stephan Thierry Dubas, Sujitra Wongkasemjit, Thanyalak Chaisuwan
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2018)
Article
Materials Science, Textiles
Kamonthip Singbumrung, Kanjana Motina, Penwisa Pisitsak, Pisutsaran Chitichotpanya, Sujitra Wongkasemjit, Thitirat Inprasit
FIBERS AND POLYMERS
(2018)
Article
Chemistry, Multidisciplinary
Sureerat Jampa, Allen Puente-Urbina, Zhiqiang Ma, Sujitra Wongkasemjit, Jeremy S. Luterbacher, Jeroen A. van Bokhoven
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Chemistry, Applied
Srisin Eaimsumang, Sujitra Wongkasemjit, Sangobtip Pongstabodee, Siwaporn Meejoo Smith, Sukritthira Ratanawilai, Nuwong Chollacoop, Apanee Luengnaruemitchai
JOURNAL OF RARE EARTHS
(2019)
Article
Engineering, Chemical
Uthen Thubsuang, Suphawadee Chotirut, Apisit Thongnok, Archw Promraksa, Mudtorlep Nisoa, Nicharat Manmuanpom, Sujitra Wongkasemjit, Thanyalak Chaisuwan
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2020)
Article
Chemistry, Physical
Uthen Thubsuang, Suphawadee Chotirut, Kamchai Nuithitikul, Apirak Payaka, Nicharat Manmuanpom, Thanyalak Chaisuwan, Sujitra Wongkasemjit
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2020)
Article
Chemistry, Applied
Sakollapath Pithakratanayothin, Ruangdaj Tongsri, Thanyalak Chaisuwan, Sujitra Wongkasemjit, Phongtanawat Khemthong, Sarunputt Limpijumnong, Peerawith Pharanchai, Kanjanaporn Malaicharoen
MICROPOROUS AND MESOPOROUS MATERIALS
(2020)
Article
Polymer Science
Wasupon Wongvitvichot, Sakollaphat Pithakratanayothin, Sujitra Wongkasemjit, Thanyalak Chaisuwan
Summary: This study demonstrates a fast technique for obtaining carboxymethyl cellulose (CMC) from office paper waste using ultrasonic-assisted method. The obtained CMC was characterized using FTIR, TGA, and NMR techniques to confirm its structure. Optimal conditions and product characteristics were achieved at ambient temperature.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Chemistry, Applied
Nopparat Sangtong, Thanyalak Chaisuwan, Sujitra Wongkasemjit, Hatsuo Ishida, Wikrom Redpradit, Kessara Seneesrisakul, Uthen Thubsuang
Summary: This study developed an electrode material based on activated biocarbon from rubber wood sawdust waste using alkali activating agents. The impact of alkali metal atom sizes on pore structure was studied, as well as the influence of standard reduction potentials on electrochemical performance. The activated biocarbons showed microporous or mesoporous characteristics depending on the alkali activating agent used, with different specific surface areas and capacitance values.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Ruethaithip Dulyasucharit, Sujitra Wongkasemjit, Suwat Nanan, Orapan Intharaksa, Chivalrat Masingboon
Summary: A magnetic separable photocatalyst, Fe3O4/Bi2O2(OH)(NO3), was synthesized via co-precipitation and a hydrothermal route. The photocatalytic activity of the Fe3O4/Bi2O2(OH)(NO3) catalyst for rhodamine B degradation was investigated under natural sunlight irradiation. With 3% Fe3O4, the photocatalyst showed high efficiency (about 98.7%) after 120 min of illumination, and the photogenerated holes played a prominent role in dye degradation. This study demonstrates the enhancement of photocatalytic performance by fabricating a novel sunlight-active catalyst with a low electron-hole recombination rate at the interface.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Engineering, Civil
Chutima Banthao, Patcharin Kumpolsan, Yodthong Baimark, Sujitra Wongkasemjit, Kansiri Pakkethati
INTERNATIONAL JOURNAL OF GEOMATE
(2020)
Article
Materials Science, Multidisciplinary
Pornsit Lorkit, Nuntanid Phatharapeetranun, Bussarin Ksapabutr, Sujitra Wongkasemjit, Nattawut Chaiyut, Manop Panapoy
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS
(2018)
