Article
Biochemistry & Molecular Biology
Guangqing Du, Youduo Wu, Wei Kang, Yongping Xu, Shuying Li, Chuang Xue
Summary: In this study, the strain Clostridium acetobutylicum ATCC 55025 and its mutant HKKO were engineered to improve butanol production. Knocking out the acetoacetate decarboxylase gene adc decreased acetone production and increased the butanol/ABE ratio. Overexpression of the acetaldehyde/alcohol dehydrogenase gene adhE2 further increased butanol production.
PROCESS BIOCHEMISTRY
(2022)
Article
Agricultural Engineering
Ana Maria Zetty-Arenas, Laura Plazas Tovar, Rafael Ferraz Alves, Adriano Pinto Mariano, Walter van Gulik, Rubens Maciel Filho, Sindelia Freitas
Summary: The co-fermentation of mixed sugars for butanol production is a promising approach, and C. saccharoperbutylacetonicum DSM 14923 shows potential and effective application in this process. The study found that the best-performing fermentation medium had a CHH25/SCM75 ratio, with 97% sugar consumption and no inhibitory effect of undissociated acetic acid at pH 5.5-6.5.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Multidisciplinary Sciences
Celine Foulquier, Antoine Riviere, Mathieu Heulot, Suzanna Dos Reis, Caroline Perdu, Laurence Girbal, Mailys Pinault, Simon Dusseaux, Minyeong Yoo, Philippe Soucaille, Isabelle Meynial-Salles
Summary: The authors identified the previously unknown encoding genes for important enzymes involved in redox balancing in n-butanol production by Clostridium acetobutylicum, and increased n-butanol production through enzyme optimization. This discovery is significant for the development of a homobutanologenic C. acetobutylicum strain.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Guangqing Du, Chao Zhu, Mengmeng Xu, Lan Wang, Shang-Tian Yang, Chuang Xue
Summary: This study identified four orphan histidine kinases (HKs) that control sporulation and solventogenesis in Clostridium acetobutylicum. Single knockout of cac3319 halted sporulation at the initiation stage but increased butanol tolerance and production, while cac0437 knockout caused premature sporulation and inhibited the transition to solventogenesis, resulting in low butanol production.
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
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
Engineering, Environmental
Marwa M. El-Dalatony, Bikram Basak, Mayur B. Kurade, Hyun-Seog Roh, Min Jang, Byong-Hun Jeon
Summary: This study demonstrates the effective production of biohydrogen (bioH(2)) and ABE through ABE fermentation using sonication pretreated Chlamydomonas mexicana biomass as a cost-effective substrate. Sonication enhances the recovery and bioaccessibility of carbohydrates and proteins, resulting in higher yields of bioH(2) and volatile fatty acids. The study shows the efficient conversion of soluble carbohydrates and proteins into bioH(2) and ABE, which can be used for high-energy biofuel production with minimal waste generation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
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
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
Biotechnology & Applied Microbiology
Guangqing Du, Jian Che, Youduo Wu, Zhenzhong Wang, Zhiyang Jiang, Feng Ji, Chuang Xue
Summary: In this study, the disruption of hydA gene in Clostridium acetobutylicum led to increased butanol production and decreased acetone formation. Exogenous supplementation of methyl viologen further improved the butanol yield and ratio. The engineered strain showed potential for producing biobutanol using lignocellulosic biomass.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Construction & Building Technology
Nengsen Wu, Tao Ji, Ping Huang, Tengfei Fu, Xiaoyan Zheng, Qing Xu
Summary: The study shows that applying sugar cane bagasse ash (SCBA) in ultra-high performance concrete can maintain compressive strength, improve workability, and reduce autogenous shrinkage. UHPC exhibits good comprehensive performance at a certain replacement rate.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Agricultural Engineering
Ruiling Gao, Lian Xiong, Mengkun Wang, Fen Peng, Hairong Zhang, Xinde Chen
Summary: Coupled fermentation of Clostridium acetobutylicum and oleaginous yeasts was conducted to produce acetone-butanol-ethanol (ABE) and lipids from sugarcane molasses. The results showed that the ABE fermentation wastewaters could be effectively treated and the added value of the products could be increased through coupling with lipid-producing fermentation process. Different types of wastewaters were analyzed and classified based on their carbon source content and structure. Oleaginous yeasts, including Trichosporon dermatis and Lipomyces starkeyi, were cultured on the two types of wastewaters and their lipid productions and removals of COD and ammonia were evaluated. The findings suggest that Trichosporon dermatis performed well on both types of wastewaters, while Lipomyces starkeyi achieved the highest lipid production on Type-2 wastewater.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Energy & Fuels
Zhiyou Zhou, Yujie Jing, Saijin Wei, Qinghua Zhang, Shuaiying Peng, Xuejiao An, Hanguang Li
Summary: In this study, an exogenous regulatory strategy named oxidation-reduction potential (ORP) regulation was used to enhance butanol production. The findings showed that controlling the ORP value at -400 mV resulted in the highest butanol production, with increased yield and productivity. The study also investigated the physiological mechanisms of ORP regulation on butanol synthesis.
Article
Multidisciplinary Sciences
Jun Feng, Jie Zhang, Yuechao Ma, Yiming Feng, Shangjun Wang, Na Guo, Haijiao Wang, Pixiang Wang, Pablo Jimenez-Bonilla, Yanyan Gu, Junping Zhou, Zhong-Tian Zhang, Mingfeng Cao, Di Jiang, Shuning Wang, Xian-Wei Liu, Zengyi Shao, Ilya Borovok, Haibo Huang, Yi Wang
Summary: The study developed microbial strains capable of producing high-value and easily-separable derivatives like butyl acetate and butyl butyrate, by leveraging pathways in solventogenic clostridia. This improvement in bioproduction efficiency and economic competitiveness was achieved through systematic metabolic engineering, including the elimination of putative prophages.
NATURE COMMUNICATIONS
(2021)
Article
Agricultural Engineering
Xiaoling Xian, Xiaojie Zheng, Jiale Huang, Nasib Qureshi, Biying Li, Jingke Liu, Yueren Zeng, Nancy N. Nichols, Xiaoqing Lin
Summary: In this study, cellulosic ethanol was produced by detoxifying high SLR hydrolysate with SY-01 resin. The detoxified hydrolysate was successfully fermented, resulting in a high ethanol concentration and yield. These findings demonstrate the effectiveness of SY-01 resin in detoxifying lignocellulosic hydrolysate.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Engineering, Chemical
Manjusha A. Thombare, Dinesh Kalaga, Sandip B. Bankar, Rahul K. Kulkarni, Satchidanand R. Satpute, Prakash Chavan
PARTICULATE SCIENCE AND TECHNOLOGY
(2020)
Article
Food Science & Technology
Nirali Shah, Anne Usvalampi, Sandeep Chaudhary, Tuulikki Seppanen-Laakso, Sandesh Marathe, Sandip Bankar, Rekha Singhal, Salem Shamekh
EUROPEAN FOOD RESEARCH AND TECHNOLOGY
(2020)
Article
Biochemistry & Molecular Biology
Hakim Hebal, Arno Parviainen, Sasikala Anbarasan, He Li, Laura Makkonen, Sandip Bankar, Alistair W. T. King, Ilkka Kilpelainen, Said Benallaoua, Ossi Turunen
PROCESS BIOCHEMISTRY
(2020)
Article
Agricultural Engineering
Bruna Pratto, Vijaya Chandgude, Ruy de Sousa Junior, Antonio Jose Goncalves Cruz, Sandip Bankar
INDUSTRIAL CROPS AND PRODUCTS
(2020)
Article
Engineering, Chemical
Manisha A. Khedkar, Pranhita R. Nimbalkar, Shashank G. Gaikwad, Prakash Chavan, Sandip B. Bankar
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Thermodynamics
Vijaya Chandgude, Teemu Valisalmi, Juha Linnekoski, Tom Granstrom, Bruna Pratto, Tero Eerikainen, German Jurgens, Sandip Bankar
Summary: This study successfully improved the product titer and yield of ABE fermentation production by combining reducing agents and a controlled feeding strategy, leading to efficient utilization of glucose and significant enhancement in solvent production.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Thermodynamics
Manisha A. Khedkar, Satchidanand R. Satpute, Sandip B. Bankar, Prakash Chavan
Summary: The study aimed to investigate the efficacy of silver ion chromatography in selectively separating unsaturated fatty acids. The first part of the study focused on adsorption of oleic acid using R-Ag+ resin, showing that R-Ag+ had the highest adsorption capacity for oleic acid at 303 K. The study also found that the adsorption of oleic acid on R-Ag+ resin was spontaneous and exothermic.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2021)
Article
Chemistry, Multidisciplinary
Shrikant A. Survase, Pranhita Nimbalkar, German Jurgens, Tom Granstrom, Prakash Chavan, Sandip Balasaheb Bankar
Summary: This study evaluated the impact of lignosulfonate on ABE production and proposed a technique to overcome lignosulfonate inhibitory action. Addition of soy meal was shown to enhance Clostridium acetobutylicum survival and increase butanol concentration during fermentation. The transcriptional analysis revealed upregulation of key genes in clostridial metabolic pathways in the presence of soy meal.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Food Science & Technology
Somnath Basak, Rahul Venkatram, Rekha S. Singhal
Summary: Molecular imprinting is gaining significant attention in food analysis for its ability to extract and analyze various analytes in complex food matrices. It has potential applications in food safety, quality control, and sample clean-up, offering a promising solution for analyzing and detecting contaminants in food.
Review
Food Science & Technology
Somnath Basak, Snehasis Chakraborty, Rekha S. Singhal
Summary: A closer look at traditional Indian foods reveals their efficacy and wisdom in utilizing regional resources and achieving perfection in processing. Engineering discussion and analysis of these foods is important in the era of convenience foods and mechanization. This review explores the critical engineering properties of Indian traditional foods, including heat and mass transfer processes, and calls for further research in this area.
Article
Green & Sustainable Science & Technology
Abhinav Sharma, Aratrika Ray, Rekha S. Singhal
Summary: This study compared the co-extraction of turmeric and dried coconut shreds through supercritical fluid extraction (SFE) and conventional solvent extraction using n-hexane. The optimized parameters for SFE resulted in a yield of 45 mg/g and a total curcuminoid content of 723 μg/g. The SFE co-extracts exhibited various biological activities, including antioxidant, anti-inflammatory, antibacterial, and anti-cancerous effects.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Nahla Osmanbegovic, Vijaya Chandgude, Sandip Bankar, Marjatta Louhi-Kultanen
Summary: The suspension freeze crystallization method was used to concentrate aqueous 1-butanol solutions, synthetic acetone-butanol-ethanol (ABE) solutions, and ABE fermentation broth, which required less energy compared to evaporation for water removal. Equimolar aqueous ABE solutions with a total molality range of 0-5.05 mol/kg(water) were found to be ideal based on the obtained freezing point depression. Suspension freeze crystallization separated 1-butanol from the mother liquor, resulting in a water-enriched phase and a 1-butanol-enriched phase. Higher subcooling degrees and initial water content in the feed solutions led to higher ice yield values.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Food Science & Technology
Aratrika Ray, Abhinav Sharma, Rekha S. Singhal
Summary: This study aimed to fabricate a porous hydrogel by crosslinking purified subabul galactomannans (SG) and kappa-carrageenan (kappa C) with whey protein isolate (WPI). The hydrogel showed high foam overrun and minimal foam drainage at a specific composition. The resulting SG and WPI incorporated porous hydrogel (SGWP) exhibited excellent stability and water uptake rate at elevated temperature and neutral pH, suggesting its potential applications in various industries and as a matrix for bioactive delivery.
JOURNAL OF FOOD SCIENCE
(2023)
Article
Food Science & Technology
Shilpa B. Jana, Rekha S. Singhal
Summary: This study presents an approach to reduce the bitterness of neem juice by adding it to sugar and preparing co-crystallized sugar cubes. The sugar cubes contain zinc, which effectively reduces the bitterness and stabilizes the antioxidant properties of neem.
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
(2023)
Article
Biochemistry & Molecular Biology
Kapil Rai, Narayansing Chhanwal, Nirali N. Shah, Rekha S. Singhal
Summary: The study focused on encapsulating ginger oleoresin in a sucrose matrix through co-crystallization, resulting in changes in the crystallinity of sucrose and improved encapsulation efficiency. The research also found that [6]-gingerol was the most stable among the gingerols studied, with optimal storage conditions identified at 25 degrees C and 33% relative humidity for ginger-flavored sugar cubes.
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)
