Article
Engineering, Chemical
Ye Won Jang, Kang Hyun Lee, Hah Young Yoo
Summary: Orange peel, a by-product of oranges, contains carbohydrates that can be converted into sugars for fermentation. A thermal alkaline pretreatment process optimized with response surface methodology resulted in high enzymatic digestibility under optimal conditions. Enzyme complex concentration below certain values during enzymatic hydrolysis can affect digestibility, with the treated group showing significantly higher digestibility compared to the control group.
Article
Biotechnology & Applied Microbiology
Fares AlMomani, Moayyad Shawaqfah, Malak Alsarayreh, Majeda Khraisheh, Bassim H. Hameed, Salman Raza Naqvi, Mohammed Berkani, Sunita Varjani
Summary: This study investigated the effects of different pretreatment methods on the production of bio-ethanol and biopolymer from residual algal biomass. The results showed that microwave laser-hydrogen peroxide-Fe-nanoparticle pretreatment had the highest sugar liberation and biopolymer yield, while the bio-ethanol production was greatly influenced by pH and temperature. The produced biopolymer exhibited excellent properties and can be used in various applications.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Review
Chemistry, Multidisciplinary
Jinyu Tan, Yan Li, Xiang Tan, Hongguo Wu, Hu Li, Song Yang
Summary: Straw biomass is a cost-effective and renewable feedstock for producing valuable chemicals and biofuels. Suitable pretreatment is essential for efficient production of fermentable sugars. Various pretreatment methods can effectively separate components and improve accessibility and susceptibility.
FRONTIERS IN CHEMISTRY
(2021)
Article
Materials Science, Paper & Wood
Jirui Yang, Xiaoqi Wang, Feng Shen, Xinhua Qi
Summary: Activation of Na2S2O8 by NaOH at room temperature for a short period of time significantly increases glucose yield of lignocellulosic feedstock. High concentration NaOH plays a critical role in selectively removing hemicellulose and activating Na2S2O8 to produce oxidative radicals, leading to disruption of lignin matrix. This study provides an effective pretreatment method for utilization of lignocellulosic biomass.
Article
Engineering, Chemical
Asyraf Hanim Ab Rahim, Normawati M. Yunus, Wan Suzaini Wan Hamzah, Ariyanti Sarwono, Nawshad Muhammad
Summary: The study focuses on enhancing the dissolution efficiency of lignocellulosic biomass by synthesizing new ether-functionalized ILs with low viscosity values. Among these ILs, MOE-MImCl stands out as having the lowest viscosity and shows potential as a powerful solvent for biomass dissolution. Optimization research using response surface methodology suggests that maximum biomass dissolution can be achieved under specific parameters such as biomass loading, sonication amplitude, and duration.
Article
Chemistry, Applied
Hailong Lu, Lili Zhang, Ming Yan, Kui Wang, Jianchun Jiang
Summary: This research develops a facile and low-cost process to produce high-yield lignocellulose nanofibrils (LCNF) directly from wood and non-wood biomass. The LCNFs obtained from different raw materials exhibit excellent morphological, thermochemical, and mechanical properties. The LCNFs show high thermal stability and tensile strength, making them suitable for industrial production of bio-based nanofilms.
CARBOHYDRATE POLYMERS
(2022)
Article
Energy & Fuels
Minghao Chen, Yiqin Wang, Jie Lu, Jian Du, Yehan Tao, Yi Cheng, Qiang Li, Haisong Wang
Summary: The study investigated a combination pretreatment method using hot water and lactic acid to treat reed straw, which demonstrated increased digestibility of lignocellulose and glucose yield. The results highlighted the potential application of this pretreatment technology in the biorefinery industry.
Article
Thermodynamics
Eng Kein New, Ta Yeong Wu, Shen Khang Tnah, Alessandra Procentese, Chin Kui Cheng
Summary: In this study, different valences of metal chlorides were used as co-catalysts in a Type II deep eutectic solvent (DES) system to enhance the pretreatment of oil palm fronds (OPF). The results showed that using ChCl:CaCl2 center dot 6H(2)O/1 wt% CuCl2/30 vol% water and ChCl:CaCl2 center dot 6H(2)O/1 wt% FeCl3/20 vol% water as pretreatment conditions could achieve high xylose recovery from OPF. Additionally, these co-catalysts were effective in removing lignin, xylan, and arabinan from OPF. Therefore, using DES + co-catalyst system with additional water content can be a promising approach for OPF pretreatment in biorefinery processes.
Article
Agricultural Engineering
Xinxin Li, Gang Fang, Liping Chen, Rongxin Guo, Dexun Zou, Yanping Liu
Summary: Thermally activated persulfate pretreatment of corn straw significantly increased the production of reducing sugar and VFAs in anaerobic digestion, reduced lignin content, and promoted the degradation of total and volatile solids, improving the performance and stability of anaerobic digestion. The impact of dissolved organic matter loss outweighed that of residual Na+ and SO42-.
BIOMASS & BIOENERGY
(2021)
Article
Agricultural Engineering
Sumarlin Shangdiar, Yuan-Chung Lin, Vinoth Kumar Ponnusamy, Tzi-Yi Wu
Summary: This study aims to utilize waste sugar bagasse as a raw material for biofuel production through an integrated bioprocess. By using microwave pretreatment method, the saccharification rate was significantly increased and the hydrolysis time was reduced compared to traditional methods. Various analytical methods were used to analyze the structure and composition of the samples.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
YuJie Wang, Jing-yong Liu, Jian Sun, Sumarlin Shangdiar, Kassian T. T. Amesho, Yung-Chang Lin, Yen-Ping Peng, Ken-Lin Chang
Summary: The acid-catalyzed ionic liquid pretreatment of rice husks significantly improves cellulose conversion, removes most hemicellulose, breaks down the crystalline structure and outer silica layer of the husks, making it favorable for industrial applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Energy & Fuels
Malgorzata Pawlowska, Magdalena Zdeb, Monika Niescioruk
Summary: Anaerobic digestion (AD) of lignocellulosic materials is an environmentally friendly alternative to non-renewable energy sources. This study evaluated the efficiency of chemical pretreatment of sugar beet pulp using different temperatures and hydrolyzing agents. The results showed that alkaline hydrolysis at 22 degrees C was the most economical option, generating a similar concentration of dissolved chemical oxygen demand (COD) as acid hydrolysis at 50 degrees C.
Review
Agricultural Engineering
S. Meenakshisundaram, A. Fayeulle, E. Leonard, C. Ceballos, A. Pauss
Summary: Sustainable biorefinery concepts based on lignocellulosic biomass have attracted global attention, requiring combined biological and chemical/physicochemical pretreatment for substrate preparation. Different combinations of pretreatment methods can effectively mitigate the drawbacks of a single pretreatment step, enhancing fiber degradation and sugar yields.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Laxmi Sharma, Nurnabi Meherul Alam, Suman Roy, Pratik Satya, Gouranga Kar, Subhojit Ghosh, Tinku Goswami, Bijan Majumdar
Summary: Optimizing alkaline pretreatment and saccharification conditions can enhance saccharification yield of jute biomass. The highest delignification and saccharification were achieved with specific NaOH concentrations, temperature, and enzyme concentrations.
BIORESOURCE TECHNOLOGY
(2023)
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
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
Selvakumar Periyasamy, Adane Asefa Adego, P. Senthil Kumar, G. G. Desta, T. Zelalem, V. Karthik, J. Beula Isabel, Mani Jayakumar, Venkatesa Prabhu Sundramurthy, Gayathri Rangasamy
Summary: Valorizing agricultural waste into valuable products is crucial for environmental protection and bioeconomy advancement. Preprocessing of agricultural waste is a critical step to convert free carbohydrate molecules for final conversion, and factors such as biomass nature, feed loading, pH, temperature, and time influence the process. This review provides comprehensive information on agricultural waste availability, preprocessing techniques, and factors influencing performance.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Aqueel Ahmad, Ashok Kumar Yadav, Achhaibar Singh, Dinesh Kumar Singh
Summary: The study focuses on predicting and optimizing the yield of biogas production in an anaerobic digester using co-digestion. Experimental data was used to develop a machine learning-based prognostic model, and the Response Surface Methodology (RSM) was employed to optimize the parameters. The results demonstrate that RSM coupled with machine learning is an effective technique for modeling, predicting, and optimizing biogas production yield.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Yijing Zhong, Wenxiang Zhai, Xinli Wei
Summary: This paper studies the thermal stability and decomposition of cork materials with and without silica aerogel filler. The results show that the decomposition is inhibited and the pyrolysis is significantly reduced with the addition of silica aerogel. This finding suggests that silica aerogel-infused cork may be a promising raw material for biofuel production with reduced environmental pollution.
BIOMASS & BIOENERGY
(2024)