Article
Agricultural Engineering
Qizhen Yang, Wei Tang, Lei Li, Menghan Huang, Cuiluan Ma, Yu-Cai He
Summary: Hydrothermal pretreatment is an effective method to improve the saccharification of lignocellulose. In this study, an efficient hydrothermal pretreatment of sunflower straw was conducted, resulting in the removal of 58.8% xylan and 33.5% lignin at a treatment temperature of 180 degrees C for 120 min and a solid-to-liquid ratio of 1:15. Various characterizations confirmed that hydrothermal pretreatment altered the surface structure and increased the accessibility to cellulase. The enzymatic saccharification of the treated sunflower straw achieved a high yield of reducing sugar and glucose and also produced xylo-oligosaccharide in the filtrate.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Jiming Yang, Shulin Wang, Fudong Bai, Xingmei Lu, Wei He, Zheng Fang, Ning Zhu, Kai Guo
Summary: Pretreatment of lignocellulose with a binary system consisting of 1-n-butyl-3-methylimidazole chloride (BMIMCl) and arginine (Arg) at temperatures higher than the glass transition temperature of lignin (Tg-lignin) can effectively reduce cellulose crystallinity and lignin content, improving enzymatic hydrolysis efficiency and reducing enzyme dosage.
CHEMICAL ENGINEERING JOURNAL
(2023)
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
Agricultural Engineering
Mengjia Wu, Lei Gong, Cuiluan Ma, Yu-Cai He
Summary: The study found that the hydrogen bond donor (HBD) in ChCl-based deep eutectic solvent (DES) had a significant impact on the removal of lignin and xylan during the pretreatment of sorghum straw. By sequentially pretreating with dilute sodium hydroxide and soaking in ChCl:LAC, the enzymatic saccharification efficiency of SS was significantly improved.
BIORESOURCE TECHNOLOGY
(2021)
Review
Biotechnology & Applied Microbiology
Carlos Martin, Pooja Dixit, Forough Momayez, Leif J. Joensson
Summary: Biochemical conversion of lignocellulosic feedstocks to advanced biofuels and other bio-based commodities typically includes hydrothermal pretreatment, which improves the efficiency of enzymatic saccharification. This review focuses on the reaction conditions, chemistry, and effects of hydrothermal pretreatment on subsequent processes.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Bin Li, Chao Zhao, Qian Sun, Kunjie Chen, Xiangjun Zhao, Lijun Xu, Zidong Yang, Hehuan Peng
Summary: This study investigates the effects of ammonification-steam explosion pretreatment of rice straw on the protein content after solid-state fermentation. The results indicate that both ammonification and steam explosion can disintegrate rice straw's lignocellulosic structure, releasing nutrients for microbial reproduction and promoting the formation of true protein. Overall, the true protein content of rice straw after combined ammonification and steam explosion pretreatment during 96 hours of solid-state fermentation was 46.7% of its total matter, making it a suitable alternative to high-protein animal feed.
Article
Agricultural Engineering
Wei He, Dong Yang, Wei Tang, Cuiluan Ma, Yu-Cai He
Summary: The addition of metal chlorides in the pretreatment of lignocellulose was studied to improve the saccharification efficiency of bulrush. It was found that the AlCl3/ChCl:Gly pretreatment effectively removed lignin and hemicellulose, resulting in a higher enzymatic saccharification yield. The reduction in lignin surface area due to the pretreatment was observed, and the Azure B dye adsorption data showed correlations with delignification and glucose yield.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Agricultural Engineering
Qizhen Yang, Wei Tang, Cuiluan Ma, Yu-Cai He
Summary: This study successfully achieved the efficient co-production of xylooligosaccharides, furfural, and reducing sugars from yellow bamboo using a novel solid acid catalyst, and the good performance of the catalyst was confirmed through stability experiments.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Helena Poy, Estela Lladosa, Adrian Arcis, Carmen Gabaldon, Sonia Loras
Summary: This study investigates a new green and cost-effective biomass pretreatment method using microwave irradiation and a ternary deep eutectic solvent (DES) for the efficient conversion of rice straw. The results show that under mild pretreatment conditions, the DES can achieve high delignification and nearly complete conversion of polysaccharides in the rice straw, indicating its potential for improved valorization of biomass polysaccharides.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Environmental Sciences
Binita Dev, Arindam Bakshi, Balasubramanian Paramasivan
Summary: The transition towards a bio-based economy has led to an increasing demand for fresh water, making biofuel a high water footprint product. The depletion of fresh water resources has worsened the situation and requires the exploration of non-potable water for biorefinery purposes. In this study, seawater is used as an alternative reaction medium for pretreatment and saccharification of rice straw. The optimized pretreatment conditions were determined using Response Surface Methodology based on Box-Behnken Design, resulting in high cellulose release and reducing sugar yield. Physico-chemical studies confirmed the efficacy of the pretreatment by showing delignification and changes in surface morphology of the biomass. This finding suggests the potential of utilizing abundantly available seawater as a reaction medium for sustainable biofuel production.
Article
Energy & Fuels
Jia-Ming Guo, Yu-Tao Wang, Jing-Rong Cheng, Ming-Jun Zhu
Summary: In this study, a simple and effective SPB pretreatment method was proposed to enhance the enzymatic hydrolysis efficiency of rice straw. The pretreated rice straw showed high enzymatic hydrolysis efficiency and bioethanol production through simultaneous saccharification and co-fermentation.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Environmental Sciences
Yu Hua, Shuxian Chen, Huiping Li, Chen Cai, Xiaohu Dai
Summary: The novel thermal pretreatment method, called air frying, was developed to improve sugar yields and surface hydrophilicity with less loss of organic matter. Corn stover showed a more significant improvement in sugar yields after the pretreatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Qun Wang, Juncheng Shao, Linpei Shen, Jianghui Xiu, Shengdao Shan, Kangting Ma
Summary: Carbonized products of waste agricultural straws can be used for soil remediation to reduce impact of heavy metals. Fermentation of straws by filamentous fungi enhances the properties of biochar for cadmium-contaminated paddy soil remediation. Fermented straws have higher adsorption capacity and are more effective in reducing bioavailable Cd(II) and improving soil pH compared to natural straws.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Agricultural Engineering
Afrasiab Khan Tareen, Imrana Niaz Sultan, Kiettipong Songprom, Nikhom Laemsak, Sarote Sirisansaneeyakul, Wirat Vanichsriratana, Pramuk Parakulsuksatid
Summary: The study investigated the production of ethanol from oil palm trunk chips using steam explosion, alkaline extraction, and fermentation. The optimized two-step pretreatment process showed efficient ethanol production.
BIORESOURCE TECHNOLOGY
(2021)
Review
Biochemistry & Molecular Biology
Min Zhou, Xingjun Tian
Summary: This paper comprehensively reviewed the progress of lignocellulose pretreatment, quantifying the influence of different pretreatment methods on biomass conversion, and discussing related techniques and future challenges.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)