Article
Biotechnology & Applied Microbiology
Reema Ningthoujam, Pankaj Jangid, Virendra Kumar Yadav, Dipak Kumar Sahoo, Ashish Patel, Harish Kumar Dhingra
Summary: Current ethanol production technology requires efficient conversion of lignocellulosic biomass to fermentable sugars. This study found that pretreating rice straw with 4% NaOH alkali could significantly improve conversion efficiency and increase ethanol concentration.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Agricultural Engineering
Neerja Yadav, Lata Nain, Sunil K. Khare
Summary: This study successfully produced second generation lactic acid from rice straw using imidazolium ionic liquid pretreatment, fermentation with Lactobacillus plantarum SKL-22 strain, and cellulase saccharification. By optimizing the medium, the lactic acid yield was increased, and scaling up in a 5 L bioreactor resulted in a 1.11% yield increment. Overall, the study demonstrated the potential of L. plantarum SKL-22 to produce lactic acid from rice straw hydrolysate in an environmentally friendly manner.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
Nisha Singh, Ravi P. Gupta, Suresh K. Puri, Anshu S. Mathur
Summary: This study presents an innovative approach for the production of bioethanol from lignocellulosic feedstock, utilizing a coculture strategy with optimized additives to improve ethanol yield significantly.
Article
Agricultural Engineering
Sivagnanam Silambarasan, Peter Logeswari, Ramachandran Sivaramakrishnan, Arivalagan Pugazhendhi, Balu Kamaraj, Antonieta Ruiz, Govindarajan Ramadoss, Pablo Cornejo
Summary: In this study, finger millet straw (FMS) was utilized for the production of Polyhydroxybutyrate (PHB) by Bacillus megaterium strain CAM12. The combination of ultrasound-assisted alkaline pretreatment and enzymatic saccharification of FMS resulted in high delignification and hydrolysis yields, leading to successful PHB production by the strain CAM12. The extracted polymer was confirmed to be PHB through analytical techniques like FTIR, XRD, and NMR, highlighting the potential of FMS hydrolysates as a promising feedstock for PHB production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
Emeka Boniface Ekwenna, Yaodong Wang, Anthony Roskilly
Summary: This research suggests that hydrogen and methane co-produced from pretreated rice straw can be a solution to Nigeria's energy inadequacies and waste management issues. The study used acidogenic and methanogenic procedures in various systems after pretreating the rice straw with chemical/potash extract and a biological agent. The findings showed that enzymatic hydrolysis of the pretreated rice straw significantly increased the hydrogen and methane production, with NaOH-PT and PE-PT substrates yielding the highest values. In addition, the study evaluated the energy output using combined cooling, heat, and power systems, and found that NaOH and PE-PT digesters had the highest electricity and thermal yield.
Article
Agricultural Engineering
Hong Sun, Chaosheng Liao, Liangyin Chen, Qiming Cheng, Yulong Zheng, Chunmei Wang, Yixiao Xie, Chao Chen, Ping Li
Summary: In order to address the environmental issues related to the disposal of rice straw and silage effluent, the pre-treatment of silage effluent for anaerobic production of volatile fatty acids (VFAs) was studied. Phenyllactic acid (PLA) levels were set to prevent lactic acid bacteria from inhibiting anaerobic fermentation. The total VFA yields of treatments pre-treated only with silage effluent were higher compared to groups combined with PLA during 15 days fermentation. The findings suggest that silage effluent has potential as a biological pretreatment for VFA production.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Sundeep Kaur, Payal Guleria, Arushdeep Sidana, Sudesh Kumar Yadav
Summary: Dilute nitric acid was used to fractionate hemicellulosic component of rice straw for efficient recovery of xylose and subsequent xylitol production.
BIOMASS & BIOENERGY
(2022)
Article
Agricultural Engineering
Zahoor, Wen Wang, Xuesong Tan, Muhammad Imtiaz, Qingfeng Wang, Changlin Miao, Zhenhong Yuan, Xinshu Zhuang
Summary: The experiment showed that low-temperature KU pretreatment of rice straw significantly increased sugar yields and ethanol production, while also altering the cell wall composition and crystallinity index. Additionally, the pretreatment liquor, rich in potassium and nitrogen, can be used as fertilizer for plant cultivation.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Environmental Sciences
Guangyin Chen, Hainan Cao, Yaling Tang, Keye Ni, Jing Wang, Pei Wu
Summary: To improve the biogas yield of rice straw, an innovative cascade utilization process named FSD was proposed, which involves first digestion, NaOH treatment, and second digestion. Lab-scale batch experiments were conducted to study the effect of first digestion time on biogas production and lignocellulose structure destruction. Results showed that the FSD-15 process yielded the highest biogas production and had significant effects on the composition and structure of rice straw. Therefore, FSD-15 is recommended for cascade utilization of rice straw in biogas production.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agricultural Engineering
Cristina Alvarez, Alberto Gonzalez, Ignacio Ballesteros, Maria Jose Negro
Summary: Through steam explosion pretreatment of barley straw, different enzyme combinations were utilized for valorization of hemicellulose fraction to produce XOS. The solid fraction was then used for bioethanol production through presaccharification and simultaneous saccharification and fermentation process.
BIORESOURCE TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Shuyu Xiang, Feihu Lu, Yuhuan Liu, Roger Ruan
Summary: The presence of heavy metals in pig manure can inhibit biogas production and increase environmental pollution risk, while rice straw serves as a good co-digestion substrate and natural adsorbent. The study found that heavy metals were transformed into solid phase through adsorption during anaerobic digestion, with microwave and ultrasonic treatment improving adsorption properties, while alkaline treatment favored anaerobic digestion.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Jinling Cai, Yu Wang, Jie Liu, Xinzhi Zhang, Fengmei Li
Summary: This study uses NaOH/urea and electrohydrolysis pretreatment to enhance the disruption of rice straw and the production of biofuels and chemicals. The pretreatment methods effectively disrupt the lignin structure and increase the cellulose crystallinity of rice straw. The hydrolysis of the pretreated rice straw produces a higher amount of reducing sugars and an increased yield of hydrogen.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Haomin Zheng, Fangyi Tang, Yunqin Lin, Zhiyong Xu, Zenghua Xie, Jun Tian
Summary: Solid-state anaerobic digestion (SSAD) is a key technology for utilizing agricultural waste. In this study, swine manure digested effluent (SMDE) was used to pretreat rice straw, resulting in improved biodegradability and methane production in the subsequent SSAD process. This integrated approach has the potential for large-scale trials and wide applications in the future.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Agricultural Engineering
Xing Zhou, Guang Li, Fan Liu, Na Li
Summary: A new ethanol production process from corn straw based on chemical looping gasification is developed and simulated in this study. The system demonstrates high energy efficiency, low ethanol selling price, and a relatively low investment in chemical looping gasification equipment.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Chun-Xue Yang, Ling Wang, Yi-Jian Zhong, Ze-Chong Guo, Liu Jia, Shao-Peng Yu, Thangavel Sangeetha, Bao-Ling Liu, Chao Ni, Hong Guo
Summary: By introducing Fenton-like reagents in anaerobic digestion systems, the acidification and methanogenesis process was accelerated, leading to increased methane production and higher net energy output. MEC enhanced the enrichment of hydrogenotrophic methanogens and promoted acetogenesis and methanogenesis.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biotechnology & Applied Microbiology
Sirilak Baramee, Thitiporn Teeravivattanakit, Paripok Phitsuwan, Rattiya Waeonukul, Patthra Pason, Chakrit Tachaapaikoon, Akihiko Kosugi, Kazuo Sakka, Khanok Ratanakhanokchai
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2017)
Article
Biotechnology & Applied Microbiology
Ayumi Shikata, Junjarus Sermsathanaswadi, Phakhinee Thianheng, Sirilak Baramee, Chakrit Tachaapaikoon, Rattiya Waeonukul, Patthra Pason, Khanok Ratanakhanokchai, Akihiko Kosugi
ENZYME AND MICROBIAL TECHNOLOGY
(2018)
Article
Biotechnology & Applied Microbiology
Shimpei Aikawa, Sirilak Baramee, Junjarus Sermsathanaswadi, Phakhinee Thianheng, Chakrit Tachaapaikoon, Ayumi Shikata, Rattiya Waeonukul, Patthra Pason, Khanok Ratanakhanokchai, Akihiko Kosugi
SYSTEMATIC AND APPLIED MICROBIOLOGY
(2018)
Article
Biotechnology & Applied Microbiology
Patthra Pason, Junjarus Sermsathanaswadi, Rattiya Waeonukul, Chakrit Tachaapaikoon, Sirilak Baramee, Khanok Ratanakhanokchai, Akihiko Kosugi
Article
Biotechnology & Applied Microbiology
Shimpei Aikawa, Phakhinee Thianheng, Sirilak Baramee, Umbhorn Ungkulpasvich, Chakrit Tachaapaikoon, Rattiya Waeonukul, Patthra Pason, Khanok Ratanakhanokchai, Akihiko Kosugi
ENZYME AND MICROBIAL TECHNOLOGY
(2020)
Article
Biotechnology & Applied Microbiology
Umbhorn Ungkulpasvich, Sirilak Baramee, Ayaka Uke, Akihiko Kosugi
Summary: A new chitinolytic bacterial community (CBC) with high chitin degradation activity under thermophilic conditions was identified from cow manure compost. Two dominant bacterial genera, Hydrogenispora and Tepidanaerobacter, were found in the CBC. Two isolated strains, UUS1-1 and GT38, were closely related to H. ethanolica and T. acetatoxydans, respectively. A coculture of UUS1-1 and GT38 degraded crystalline chitin faster with lower lactate accumulation, indicating a symbiotic association that enhanced chitin degradation.
ENZYME AND MICROBIAL TECHNOLOGY
(2021)
Article
Biochemical Research Methods
Thitiporn Teeravivattanakit, Sirilak Baramee, Prattana Ketbot, Rattiya Waeonukul, Patthra Pason, Chakrit Tachaapaikoon, Khanok Ratanakhanokchai, Paripok Phitsuwan
Summary: The study introduces an eco-friendly method of removing xylan from rice straw using xylanolytic Bacillus firmus K-1, showing that smaller particle sizes of rice straw give similar xylan removal efficiency. The pretreated rice straw exhibited higher digestibility and greater glucan conversion under enzymatic hydrolysis, with the extent of cellulose hydrolysis depending on the types and formulations of enzymes.
PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Sreyneang Nhim, Rattiya Waeonukul, Ayaka Uke, Sirilak Baramee, Khanok Ratanakhanokchai, Chakrit Tachaapaikoon, Patthra Pason, Ya-Jun Liu, Akihiko Kosugi
Summary: This research has identified a bacterial strain, A9, that secretes beta-glucosidase and can effectively degrade cellulose in combination with Clostridium thermocellum. The beta-glucosidase enzyme, rTcBG1, shows high thermostability and glucose tolerance, indicating its potential use in a new biological cellulose saccharification process that does not require supplementation with beta-glucosidases.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Chinda Chhe, Ayaka Uke, Sirilak Baramee, Chakrit Tachaapaikoon, Patthra Pason, Rattiya Waeonukul, Khanok Ratanakhanokchai, Akihiko Kosugi
Summary: The newly isolated cellulolytic xylanolytic bacteria strain DA-C8 shows efficient xylan degradation within 4 days under anaerobic conditions. Phylogenetic analysis indicates that DA-C8 belongs to Paenibacillus. It exhibits high expression of xylan and cellulose degradation genes under anaerobic conditions but is repressed under aerobic conditions.
JOURNAL OF BIOTECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Ayaka Uke, Chinda Chhe, Sirilak Baramee, Chakrit Tachaapaikoon, Patthra Pason, Rattiya Waeonukul, Khanok Ratanakhanokchai, Akihiko Kosugi
Summary: Genomic and enzymatic data from two xylanolytic bacteria Paenibacillus cisolokensis and Xylanibacillus composti, with strong xylan-degrading abilities, were analyzed to discover more efficient degradation processes of lignocellulosic biomass. The draft genome sequences revealed the genetic characteristics and carbohydrate-active enzyme encoding in these bacteria, providing valuable insights for potential applications in biomass degradation research.
Article
Multidisciplinary Sciences
Chinda Chhe, Ayaka Uke, Sirilak Baramee, Umbhorn Ungkulpasvich, Chakrit Tachaapaikoon, Patthra Pason, Rattiya Waeonukul, Khanok Ratanakhanokchai, Akihiko Kosugi
Summary: The thermophilic, facultatively anaerobic, xylanolytic bacterial strain DA-C8, isolated from compost, shows strong beechwood xylan degradation ability. Its genome contains important debranching enzymes and its closest relatives are Paenibacillus cisolokensis and P. chitinolyticus, as inferred from 16S rRNA sequences.
Article
Multidisciplinary Sciences
Umbhorn Ungkulpasvich, Ayaka Uke, Sirilak Baramee, Akihiko Kosugi
Article
Multidisciplinary Sciences
Sirilak Baramee, Ayaka Uke, Chakrit Tachaapaikoon, Rattiya Waeonukul, Patthra Pason, Khanok Ratanakhanokchai, Akihiko Kosugi
Article
Green & Sustainable Science & Technology
Sirilak Baramee, Ake-kavitch Siriatcharanon, Prattana Ketbot, Thitiporn Teeravivattanakit, Rattiya Waeonukul, Patthra Pason, Chakrit Tachaapaikoon, Khanok Ratanakhanokchai, Paripok Phitsuwan