Article
Chemistry, Applied
Sean M. Garvey, Justin L. Guice, Morgan D. Hollins, Caroline H. Best, Kelly M. Tinker
Summary: The objective of this study was to test the hydrolytic efficacy of 6 fungal enzymes in the INFOGEST static in vitro simulation of gastrointestinal (GI) digestion. The study found that these enzymes improved the hydrolysis of dietary protein, lipid, and carbohydrate under simulated gastric or GI conditions, and the combination of these enzymes enhanced macronutrient digestion. The study also validated the efficacy of these enzymes in compromised digestive conditions.
Review
Agricultural Engineering
Vinay Kumar, Neha Sharma, Mridul Umesh, Manickam Selvaraj, Badria M. Al-Shehri, Pritha Chakraborty, Lucky Duhan, Shivali Sharma, Ritu Pasrija, Mukesh Kumar Awasthi, Siva Ramakrishna Lakkaboyana, Rodrigo Andler, Amit Bhatnagar, Subhrangsu Sundar Maitra
Summary: Modernization and industrialization have accelerated the generation of agro-industrial food waste, while also opening up the potential for extracting commercial products from these wastes. More attention is needed for the treatment and utilization methods of agro-industrial food waste to promote the concept of circular bio economy.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Pierre C. Wensel, Mahesh Bule, Allan Gao, Manuel Raul Pelaez-Samaniego, Liang Yu, William Hiscox, Gregory L. Helms, William C. Davis, Helmut Kirchhoff, Manuel Garcia-Perez, Shulin Chen
Summary: The featured application discussed in this article is the cost-effective manufacturing of various products such as food, feed, fuel, therapeutics, and bioplastics through the cultivation of algae. Overcoming the challenges of commercializing algal-based processes for these products requires a comprehensive reconsideration of factors such as selected algae, cultivation methods, biomass conversion, and refining. The article presents a two-stage cultivation process that addresses the challenges of mass outdoor microalgal cultivation for biofuels and co-products, using a specific type of algae and sustainable inputs from waste fractionation.
APPLIED SCIENCES-BASEL
(2022)
Article
Agricultural Engineering
Mukesh Kumar Awasthi, Sharareh Harirchi, Taner Sar, V. S. Vigneswaran, Karthik Rajendran, Ricardo Gomez-Garcia, Coralie Hellwig, Parameswaran Binod, Raveendran Sindhu, Aravind Madhavan, A. N. Anoop Kumar, Vinod Kumar, Deepak Kumar, Zengqiang Zhang, Mohammad J. Taherzadeh
Summary: The increase in population and urbanization has led to a significant amount of food waste, and effective waste management is a major concern. However, the perishable nature and high moisture content of food waste are major obstacles to cost-effective valorization. Bioconversion of food waste into value-added products is an environmentally friendly and economically viable approach to address these issues. Targeting the production of multiple products can provide a greater solution.
BIORESOURCE TECHNOLOGY
(2022)
Review
Engineering, Environmental
Darijo Sibalic, Anita Salic, Bruno Zelic, Nghiep Nam Tran, Volker Hessel, Krishna D. P. Nigam, Marina Tisma
Summary: Lignocellulosic biorefinery processes for producing bioenergy and value-added products are complex, expensive, energy-intensive, and not environmentally friendly. To overcome these challenges, novel technologies and synergies between existing technologies are needed for sustainable conversion of lignocellulosic biomass into value-added products. This paper investigates cascade processes using ionic liquids and lipases to convert lignocellulosic biomass into value-added products. It provides an overview of the chemical composition of lignocellulosic biomass, solid-state fermentation principles, lipase production by microorganisms on lignocellulosic biomass, ionic liquid utilization for biomass valorization, lipase-catalyzed biotransformation in batch reactors and microreactors, and sustainability assessment using green chemistry metrics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Agricultural Engineering
Sachin Talekar, Krishmali Ekanayake, Brendan Holland, Colin Barrow
Summary: This article provides an overview of food waste production and management practices in Australia, emphasizing the potential for utilizing these waste streams in biorefineries. It also describes the efforts made in Australia to promote the development of concrete and commercially viable technologies for food waste biorefinery, as well as the challenges they face.
BIORESOURCE TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Hossain M. Zabed, Suely Akter, Junhua Yun, Guoyan Zhang, Mei Zhao, M. Mofijur, Mukesh Kumar Awasthi, M. A. Kalam, Arthur Ragauskas, Xianghui Qi
Summary: Corn stover (CS) is a common agricultural waste, accounting for 47-50% of the dry mass of total grain yield. It contains cellulose, hemicellulose, and lignin, making it an ideal raw material for biofuels and chemicals. However, the technoeconomic perspectives of CS-based biorefineries remain questionable due to logistics issues, expensive conversion technologies, limited scale-up, and lower market competitiveness. This review critically discusses the latest research on the biochemical conversion of CS into biofuels and chemicals, covering market potential, technological developments, and economic perspectives.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Nicolas M. Clauser, Fernando E. Felissia, Maria C. Area, Maria E. Vallejos
Summary: Sustainable biomass valorization and development of conversion processes can bring multiple benefits to society. Industrial biorefinery schemes require technical and economic assessments, while also focusing on process design and optimization for efficiency and profitability.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Nutrition & Dietetics
Ester Arevalo Sureda, Kateryna Pierzynowska, Bjorn Westrom, Per Torp Sangild, Thomas Thymann
Summary: The study found that key pancreatic enzymes, amylase and trypsin, are immature following pre-term birth, potentially contributing to reduced digestive capacity in pre-term neonates. Rapid post-natal increases occur within few weeks of pre-term birth, partly stimulated by enteral colostrum intake, reflecting a marked adaptation capacity. Alternatively, lipase is less affected by pre-/post-natal age and feeding. Thus, there is a highly enzyme-specific and asymmetric perinatal development of the exocrine pancreas.
FRONTIERS IN NUTRITION
(2021)
Article
Medicine, General & Internal
Peili Ding, Bin Song, Xuelin Liu, Xing Fang, Hongliu Cai, Dingyu Zhang, Xia Zheng
Summary: Elevated pancreatic enzyme levels in COVID-19 patients are associated with poor prognosis, leading to a higher likelihood of mechanical ventilation and kidney injury, indicating the potential presence of severe multi-organ damage.
FRONTIERS IN MEDICINE
(2021)
Review
Agricultural Engineering
Marina Tisma, Polona Znidarsic-Plazl, Gordana Selo, Ivana Tolj, Marcela Speranda, Ana Bucic-Kojic, Mirela Planinic
Summary: Although Trametes versicolor is well-investigated, its industrial application and metabolites have not yet reached their full potential. This review highlights the opportunities and challenges for its industrial use in circular bioeconomy, particularly in enzyme production, wastewater treatment, and biofuel production. Despite its promising prospects, there are still bottlenecks and limitations that need to be addressed for maximizing its industrial utilization.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Khai Jie Yong, Ta Yeong Wu, Cornelius Basil Tien Loong Lee, Zhi Jin Lee, Qinpu Liu, Jamaliah Md Jahim, Qiaoqiao Zhou, Lian Zhang
Summary: This review critically analyzes the recent progress of industrial furfural production from lignocellulosic biomass worldwide, discussing both traditional processes and novel technologies, as well as exploring future technology development opportunities.
BIOMASS & BIOENERGY
(2022)
Article
Biotechnology & Applied Microbiology
Esteban Amador Morilla, Paula Mutti Stegmann, Gisela Tubio
Summary: A promising technique of co-cultivation Solid-State Fermentation (SSF) of Aspergillus niger and Aspergillus oryzae for the production of enzymatic cocktails was optimized. The cocktail was analyzed and found to contain 54.17% proteins related to the enzymes of interest, including amylases, proteases, cellulases, and lipases. The enzymes showed great stability in a wide range of pH and temperatures and demonstrated excellent cleaning efficiency.
FOOD AND BIOPRODUCTS PROCESSING
(2023)
Article
Agricultural Engineering
Farinaz Ebrahimian, Joeri F. M. Denayer, Keikhosro Karimi
Summary: Potato peel waste (PPW) is a renewable resource that can be used for biofuel and biochemical production through biological and thermochemical conversions. However, there are challenges associated with the processing of PPW.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Yogesh Kumar, Samandeep Kaur, Ankan Kheto, Mohona Munshi, Ayan Sarkar, Hari Om Pandey, Ayon Tarafdar, Raveendran Sindhu, Ranjna Sirohi
Summary: Microalgae are photosynthetic microbes that can produce therapeutic compounds for various industries. Recent research has focused on finding economical substrates for their cultivation, with food waste being a popular choice. However, there are challenges such as pretreatment, dilution, and mixing of waste streams. This review discusses the advances and challenges in cultivating microalgae on food waste.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Meng Zhang, Bin Ji, Shulian Wang, Jun Gu, Yu Liu
Summary: This study found a strong correlation between extracellular polymeric substances of microalgal-bacterial granules and the granule size. The granule size had a positive effect on the removal of specific organics in wastewater, but a negative effect on ammonium and phosphorus removal. Granule size can be used as an indicator to reflect the synergistic interactions between microalgae and bacteria in microalgal-bacterial granules.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Siyu Wang, Hang Liu, Jun Gu, Meng Zhang, Yu Liu
Summary: An integrated AnfMBR-RO-chlorination process was developed to address the drawbacks of excessive sludge generation and high energy consumption in municipal wastewater reclamation. The process showed high removal rates of COD, phosphate, and NH4+-N, and significantly reduced energy consumption and greenhouse gas emissions compared to current methods, bringing municipal wastewater reclamation closer to carbon neutrality and water sustainability.
Article
Environmental Sciences
Zhen Gao, Yingqun Ma, Yu Liu, Qunhui Wang
Summary: This study developed a co-fermentation strategy using waste cooking oil (WCO) and food waste for microbial lipid production. It was found that adjusting the pH values within a certain range could increase lipid production efficiency. The produced lipid could potentially be used for biodiesel production, leading to significant reductions in CO2 and SO2 emissions from global food waste.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Jun Zhang, Yi-ping Wan, Ze-hua Liu, Hao Wang, Zhi Dang, Yu Liu
Summary: The stability of C-NEs in aqueous environmental samples is influenced by different storage conditions, with low temperature of 4 degrees C leading to easy deconjugation, while pH of 3 and addition of HgCl2 can keep C-NEs intact at room temperature. Addition of HgCl2 is more convenient and practical for 24-h composite sampling.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Jun Zhang, Shu-shu Zhong, Ke-meng Zhao, Ze-hua Liu, Zhi Dang, Yu Liu
Summary: Sulfite can effectively inhibit arylsulfatase, potentially disrupting estrogen homeostasis in humans, which requires further investigation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Zhao Tang, Yi-Ping Wan, Ze-Hua Liu, Hao Wang, Zhi Dang, Yu Liu
Summary: This study reveals the presence of eight less-studied natural estrogens in the urine of swine and cattle, showing that these estrogens are widely distributed and vary in frequency among different livestock.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agricultural Engineering
Meng Zhang, Jun Gu, Siyu Wang, Yu Liu
Summary: Novel sandwich-structured carriers were developed for fast immobilization of anammox sludge, establishing a fixed film membrane bioreactor for municipal wastewater treatment. Results showed rapid start-up of the reactor without lag phase, with high nitrogen removal efficiency and low membrane fouling. The activity of anammox sludge stabilized in the carriers, enriching Candidatus Kuenenia as the dominant anammox bacteria for promising alternative in mainstream anammox process.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Chemical
Zahra Zarei, Peyman Malekshahi, Antoine P. Trzcinski, Mohammad Hossein Morowvat
Summary: This study focused on biohydrogen production using Anabaena sp. in a photobioreactor. The investigation of hydrodynamic parameters showed that increasing the inlet gas velocity can improve gas holdup, liquid circulation velocity, and oxygen mass transfer without damaging the cyanobacteria. The results revealed that a biomass concentration of 1.2 g L-1 and a total H-2 production of 371 mL were achieved after 7 days using specific conditions. The growth of cyanobacteria in an internal-loop airlift photobioreactor was found to be a cost-effective and environmentally friendly technology for hydrogen production.
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Letter
Engineering, Environmental
Yukiko Fujii, Kouji H. Harada, Antoine P. Trzcinski
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Yuting Shi, Bin Ji, Xiaoyuan Zhang, Yu Liu
Summary: The microalgal-bacterial granular sludge (MBGS) process, as a new green wastewater treatment technology, was evaluated for its performance in treating municipal wastewater under outdoor conditions. The study discovered the auto-floating phenomenon and its causes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Antoine P. Trzcinski, Kouji Harada
Summary: This study demonstrates a novel PFAS remediation process involving adsorption onto graphite intercalated compounds (GIC) and electrochemical oxidation. The process showed efficient adsorption and degradation of PFOS, as well as the production of short chain PFAS by-products.
Review
Chemistry, Multidisciplinary
Voravich Ganthavee, Antoine P. Trzcinski
Summary: This article discusses pharmaceutical contaminants and their risks to human health and the environment. It introduces the applications of adsorption and electrochemical oxidation technology in treating pharmaceutical wastewater, highlighting their effectiveness in removing non-biodegradable pharmaceutical pollutants and improving the techno-economic feasibility and environmental viability of industrial-scale treatment processes.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Environmental Sciences
Yi-Kun Geng, Jun Gu, Xiaoyuan Zhang, Zhuan Khai Lim, Yishuai Jiang, Meng Zhang, Yan Zhou, Yu Liu
Summary: This study developed an innovative A-B process for carbon-neutral wastewater treatment by combining an anaerobic biofilm reactor (AnBR) as the A stage for energy recovery and a step-feed membrane bioreactor (MBR) as the B stage for mainstream deammonification. A multi-parameter control-based operation strategy was developed to address the challenge of selectively retaining ammonia-oxidizing bacteria (AOB) over nitrite oxidizing bacteria (NOB). Results showed that this process configuration achieved high removal rates of COD, ammonium-N, and total nitrogen, while promoting the growth and enrichment of anammox bacteria.
Article
Environmental Sciences
Xiaoyuan Zhang, Bin Ji, Junli Tian, Yu Liu
Summary: This study reported the development, performance, and microbial community of microalgal-bacterial biofilms for municipal wastewater treatment in a continuous-flow photoreactor. The results showed that microalgal-bacterial biofilms were successfully developed without external aeration. The biofilm concentrations reached steady-state at 4690 mg/L with a hydraulic retention time (HRT) of 9 h. Increasing HRT to 12 h did not enhance the biofilm accumulation but resulted in faster growth of microalgae, while the chlorophyll-a&b content in biofilms stabilized after the initial stage. Performance analysis revealed that microalgal-bacterial biofilms removed 90% of TOC, 71.4% of total nitrogen, and 72.6% of phosphorus in the steady-state photoreactor run at an HRT of 12 h with external aeration. Cyanobacteria and Chloroflexi were the dominant components, while Chlorophyta dominated the eukaryotic algal community in biofilms. This study provides insights into the development of microalgal-bacterial biofilms for sustainable low-carbon municipal wastewater treatment in continuous-flow photoreactors.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Review
Agricultural Engineering
Xiaoyuan Zhang, Lei An, Junli Tian, Bin Ji, Jinfeng Lu, Yu Liu
Summary: This article provides a preliminary analysis on the carbon capture potential of microalgal cultivation, indicating that the energy consumption and nutrient input can result in significant indirect carbon emissions, making microalgal carbon capture less effective. The current processes may not be environmentally sustainable and economically viable, thus renewable energy and cheap nutrient sources should be explored to reduce indirect carbon emissions and promote complete nutrient recycling through using microalgae as biofertilizers or aquafeeds.
BIORESOURCE TECHNOLOGY
(2023)
