Formulation improvement of a concentrated enzyme detergent for high-speed rail trains through life cycle assessment methodology

Review Food Science & Technology

Whole Maize Flour and Isolated Maize Starch for Production of Citric Acid by Aspergillus niger: A Review

Zhenyu Tong et al.

Summary: This review focuses on two categories of processes for citric acid production using Aspergillus niger, as well as recent methods to improve fermentation. Citric acid, with high economic value, is increasing steadily in production.

STARCH-STARKE (2023)

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Article Green & Sustainable Science & Technology

Life cycle assessment and circularity evaluation of the non-medical masks in the Covid-19 pandemic: a Brazilian case

Marcell Mariano Correa Maceno et al.

Summary: This study evaluates the life cycle impact and circularity of face masks, finding that reusable handmade masks have better environmental performance and circularity. These results may support government decision makers in formulating mask usage policies.

ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY (2023)

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Article Engineering, Environmental

Treatment of laundry wastewater by different processes: Optimization and life cycle assessment

Elisenda Pulido Melian et al.

Summary: Through the study of wastewater from a hotel in the south of Gran Canaria, Spain, we found that coagulation with iron (III) sulphate and Fenton processes could not meet the water reuse standards in Spain, while photo-Fenton and biological treatment showed good results in turbidity and COD removal. However, the effluent from the biological treatment did not meet the COD removal criteria, so a GAC filtration was used for post-treatment. The photo-Fenton process met the criteria for water reuse and the BF + GAC option had lower cost and environmental impacts.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2023)

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Review Biochemistry & Molecular Biology

A brief overview on the application and sources of α-amylase and expression hosts properties in order to production of recombinant α-amylase

Ahmad Movahedpour et al.

Summary: Enzymes accelerate chemical reactions by reducing activation energy; amylase is a suitable catalyst for starch decomposition; alpha-amylases produced by bacteria have a special role in industry and commerce.

BIOTECHNOLOGY AND APPLIED BIOCHEMISTRY (2022)

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Article Environmental Sciences

Environmental life cycle assessment of monosodium glutamate production in China: Based on the progress of cleaner production in recent ten years

Jiaying Ding et al.

Summary: China, as the leading producer of monosodium glutamate (MSG), has been evaluated for its environmental impacts during the production process. It was found that the cultivation of maize and the production of MSG have significant environmental effects. However, improvements in cleaner production methods have led to a reduction in environmental impacts. The use of steam, irrigation water, and ammonia volatilization during maize growth were identified as the main factors affecting the environment. Additionally, the choice of data source for maize cultivation also affects the calculated environmental impacts.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

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Article Green & Sustainable Science & Technology

The comparative life-cycle environmental effects of chemical feedstock change driven by energy system transition: A case study from China's ethylene glycol industry

Huimin Qian et al.

Summary: This study evaluates the impact of different production routes on the feedstock and environmental burdens of China's chemical manufacturing industry using ethylene glycol production as an example. It finds that replacing coal with shale gas can reduce overall environmental stresses, but also increase certain specific environmental burdens. Scenario analysis further suggests that feedstock change and production growth will increase the environmental burdens of China's ethylene glycol industry in the future.

JOURNAL OF CLEANER PRODUCTION (2022)

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Article Green & Sustainable Science & Technology

Carbon footprint of different fuels used in public transportation in Taiwan: a life cycle assessment

Ching-Chih Chang et al.

Summary: This research investigates the carbon footprints of public transport, comparing the emissions of diesel, electric, liquefied natural gas, and hydrogen fuel. Results indicate that hydrogen fuel cell buses have the greatest impact in reducing GHG emissions among the three types considered, recommending their widespread application in future bus transportation.

ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY (2022)

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Article Energy & Fuels

Insight into citric acid: A versatile organic acid

Rooben Reena et al.

Summary: Citric acid is a versatile organic acid used in various industries. Researchers are interested in using agricultural and industrial residues for its production to achieve sustainability.

FUEL (2022)

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Article Green & Sustainable Science & Technology

Enzymes as an environmental bottleneck in cellulosic ethanol production: Does on-site production solve it?

G. P. Nogueira et al.

Summary: This study evaluates the effect of on-site enzyme production in a second-generation biorefinery and finds that it can reduce the overall environmental impact of cellulosic ethanol compared to off-site supply. However, different enzyme inventories may result in trade-offs associated with 2G ethanol.

JOURNAL OF CLEANER PRODUCTION (2022)

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Article Engineering, Environmental

Cradle-to-gate life cycle assessment of structural bio-adhesives derived from glycerol

Minliang Yang et al.

Summary: This study evaluates the potential environmental impacts of glycerol-based structural bio-adhesive produced through the RAFT polymerization process. The results show that bio-glycerol-based adhesive generally has a lower environmental impact compared to petro-glycerol-based adhesive. The use of energy allocation method throughout the adhesive lifecycle leads to higher environmental impacts.

INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT (2021)

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Article Chemistry, Applied

Performance Improvement of Cleaning Formulations for the Exterior Surface ofHigh-SpeedTrains

Liangliang Zhang et al.

Summary: With the development of high-speed railways, there is an increasing demand for high-efficiency and environmentally friendly high-speed rail exterior surface cleaning agents. This article provides the initial formulation for basic high-speed rail surface cleaner and a variety of improved formulations for special environments.

JOURNAL OF SURFACTANTS AND DETERGENTS (2021)

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Article Economics

Does the life cycle affect earnings management and bankruptcy?

Pavol Durana et al.

Summary: This study aims to investigate the impact of corporate life cycle and bankruptcy risk on earnings management, revealing that financially distressed firms may reduce reported accounting profit at certain stages. Companies from Slovakia, Czech Republic, and Hungary show varying degrees of profit manipulation, with Hungarian companies demonstrating the highest increase in accounting profit by controlling the bankruptcy-life cycle effect. However, the variability of accounting manipulations across industries has not been demonstrated.

OECONOMIA COPERNICANA (2021)

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Review Agricultural Engineering

Citric acid bioproduction and downstream processing: Status, opportunities, and challenges

Sabrina Mores et al.

Summary: The review highlights the challenges in CA bioproduction, emphasizing the potential of reactive extraction and adsorption for industrial applications. While adsorption, extraction, and membrane separation have lower environmental impacts than precipitation, their technological maturity remains limited. New processes combining these techniques for CA recovery and purification still hold promise for further exploration.

BIORESOURCE TECHNOLOGY (2021)

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Article Chemistry, Applied

Influence of flowrate and composition of the alkanes dehydrogenation process feedstock on by-products concentration in the linear alkylbenzene sulfonic acid manufacturing technology

Emiliya Ivanchina et al.

Summary: Synthesis of surfactants based on linear alkylbenzenesulfonates is a complex multi-stage process influenced by the state of the equipment. Optimizing the design of the sulfonation reactor, feedstock composition, and dehydrogenation unit performance significantly affects the synthesis efficiency.

CATALYSIS TODAY (2021)

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Article Chemistry, Physical

Water hardness effect on the association and adsorption of cationic cellulose derivative/anionic surfactant mixtures for fabric softener application

Yuqi Li et al.

Summary: The cationic polymer LR400 and anionic surfactant oleate can form different types of associative complexes in aqueous solution, and the addition of Ca2+ ions affects their precipitation behavior. The adsorption of LR400/oleate on silica from solutions of varied Ca2+ concentration produces adsorbed layers with different properties, with the friction coefficient showing dependence on Ca2+ concentration. The study investigates the effect of water hardness on the aggregation and adsorption of softener agents, and correlates the frictional property of the surface with the softening effects, providing insights for fabric softener development and formulation optimization.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

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Article Biochemistry & Molecular Biology

Positive effect of glycerol on the stability of immobilized enzymes: Is it a universal fact?

Sabrina Ait Braham et al.

Summary: This study investigates the impact of glycerol on the stability of 13 immobilized enzymes, finding that its stabilizing effect is enzyme-dependent and influenced by concentration and pH. The results emphasize the importance of considering enzyme type, glycerol concentration, and pH level when using glycerol as a stabilizing agent.

PROCESS BIOCHEMISTRY (2021)

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Article Green & Sustainable Science & Technology

Life Cycle Assessment of Coal-to-Liquid Process

Chunyu Wang et al.

Summary: The study used life cycle assessment method to evaluate energy consumption, material consumption, and pollutant emissions of a coal chemistry factory. Results showed that the main source of pollution in the CTL program is the processing step, and consistent emission standards and policies are needed for the coal chemical industry's reasonable and orderly growth.

ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY (2021)

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Article Microbiology

Cellulase Enzyme Production from Filamentous Fungi Trichoderma reesei and Aspergillus awamori in Submerged Fermentation with Rice Straw

Laila Naher et al.

Summary: Fungi play important roles in various sectors, with the isolation of potential fungal species being crucial for their utilization. This study isolated filamentous fungi from soil and weed leaves and evaluated their cellulase enzyme production capabilities. Results showed that Trichoderma reesei produced a significantly higher amount of cellulase compared to Aspergillus awamori.

JOURNAL OF FUNGI (2021)

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Review Microbiology

A Review on the Biotechnological Applications of the Operational Group Bacillus amyloliquefaciens

Mohamad Syazwan Ngalimat et al.

Summary: Members of the operational group Bacillus amyloliquefaciens (OGBa) are Gram-positive, endospore-forming, rod-shaped bacteria that have potential applications as plant growth promoters, biocontrol agents, probiotics, bioremediation agents, as well as producers of commercial enzymes and antibiotics. They show promise in removing organophosphorus pesticides.

MICROORGANISMS (2021)

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Review Chemistry, Applied

A Review in Linear Alkylbenzene (LAB) Production Processes in the Petrochemical Industry

Aref Shokri et al.

Summary: Linear alkylbenzene (LAB) is a cost-effective and biodegradable intermediate used in the production of detergents and surfactants, with high global demand due to the Coronavirus outbreak. LAB is produced by converting linear paraffins from kerosene into linear olefins, which then react with benzene to form LAB. The Detal process, utilizing solid catalysts for selectivity, economic efficiency, and safety, is the most commonly used method for LAB production today, compared to the HF process.

RUSSIAN JOURNAL OF APPLIED CHEMISTRY (2021)

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Article Economics

High-speed rails and knowledge productivity: A global perspective

Ayushman Bhatt et al.

Summary: The study provides empirical evidence of the positive impact of high-speed rail development on national innovation, especially for upper-middle-income countries and countries with high urban population growth. Therefore, high-speed rail development can be an important part of national innovation policy, with advantages in promoting knowledge productivity for countries with insufficient inter-regional transportation systems.

TRANSPORT POLICY (2021)

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Review Biotechnology & Applied Microbiology