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A bio-augmented system with Methylosarcina sp. LC-4 immobilized on bio-carriers: Towards an integrated approach to mitigate and valorize methane emissions from landfills to biodiesel
Chemosphere. 2023 Aug 30;341:139992. doi: 10.1016/j.chemosphere.2023.139992. Online ahead of print.ABSTRACTBio-augmented systems based on methanotrophs are indispensable in curbing anthropogenic methane emissions from engineered landfills or dumpsites to curtail rising levels of greenhouse gases. Using a defined methanotroph culture immobilized on an inert material-based bio-carrier makes it possible to harness these methane emissions for creating value-added products, thus contributing to the circular bio-economy. The methane oxidation capacity of the model methanotroph Methylosarcina sp. LC-4, a prospective organism for ...
Source: Chemosphere - September 1, 2023 Category: Chemistry Authors: Nivedita Sana Dali Naidu Arnepalli Chandraraj Krishnan Source Type: research
Optimizing the strain engineering process for industrial scale production of bio-based molecules
J Ind Microbiol Biotechnol. 2023 Sep 1:kuad025. doi: 10.1093/jimb/kuad025. Online ahead of print.ABSTRACTBiomanufacturing could contribute as much as $30 trillion to the global economy by 2030. But the success of the growing bioeconomy depends on our ability to manufacture high-performing strains in a time- and cost-effective manner. The Design-Build-Test-Learn (DBTL) framework has proven to be an effective strain engineering approach. Significant improvements have been made in genome engineering, genotyping, and phenotyping throughput over the last couple of decades that have greatly accelerated the DBTL cycles. However, ...
Source: Journal of Industrial Microbiology and Biotechnology - September 1, 2023 Category: Microbiology Authors: Eric Abbate Jennifer Andrion Amanda Apel Matthew Biggs Julie Chaves Kristi Cheung Anthony Ciesla Alia Clark-ElSayed Michael Clay Riarose Contridas Richard Fox Glenn Hein Dan Held Andrew Horwitz Stefan Jenkins Karolina Kalbarczyk Nandini Krishnamurthy Mona Source Type: research
Assessing environmental sustainability in top Middle East travel destinations: insights on the multifaceted roles of air transport amidst other energy indicators
Environ Sci Pollut Res Int. 2023 Aug 31. doi: 10.1007/s11356-023-29183-4. Online ahead of print.ABSTRACTThe Middle Eastern region is well-known for its flourishing tourism industry as the aviation sector contributes over US$213 billion to the regional GDP while air transport-related activities account for over 3.3 million jobs. Howbeit, the environmental impacts of this flourishing industry remain questionable. Hence, this study examines the tourism-emissions nexus in the Middle Eastern region from the perspective of air transportation while underscoring the multifaceted roles of major indicators like globalization, income...
Source: Environmental Science and Pollution Research International - August 31, 2023 Category: Environmental Health Authors: Stephen Taiwo Onifade Ilham Haouas Source Type: research
A sustainable hydrometallurgical strategy for recycling efficiently platinum from spent reforming petroleum catalyst
Environ Sci Pollut Res Int. 2023 Aug 31. doi: 10.1007/s11356-023-28964-1. Online ahead of print.ABSTRACTPlatinum (Pt) is one of the most precious metals with a variety of unique industrial applications, particularly in catalytic reactions, being its recovery, after use, essential. Therefore, this work proposes a simplified hydrometallurgical strategy to recover Pt efficiently from the original (no milling) spent petrochemical Pt catalyst using an economical and environmentally sustainable process. To that end, the effectiveness of a two-step workflow constituted by one microwave-assisted leaching step using a mixture of hy...
Source: Environmental Science and Pollution Research International - August 31, 2023 Category: Environmental Health Authors: S Maryam Sadeghi Helena M V M Soares Source Type: research
Macro tax incentives and corporate sustainable innovation: Evidence from Chinese Enterprises
This study shows that: (1) Tax incentive intensity has a positive incentive effect on corporate sustainable innovation. (2) The R&D expenses plus deduction policy and the preferential tax rate policy can significantly enhance corporate sustainable innovation, but there is a substitution effect between them. (3) Based on the heterogeneity of institutional environment and enterprise characteristics, the incentive effect of tax preferential policies is more obvious in enterprises which are non-state-owned and in areas with low government intervention and sound legal system. However, the incentive effect of different types...
Source: Environmental Science and Pollution Research International - August 31, 2023 Category: Environmental Health Authors: Ning Li Junwen Feng Ce Zhang Source Type: research
Aflatoxins posing threat to food safety and security in Pakistan: Call for a one health approach
Food Chem Toxicol. 2023 Aug 29:114006. doi: 10.1016/j.fct.2023.114006. Online ahead of print.ABSTRACTAflatoxins are among the most important mycotoxins due to their widespread occurrence and adverse impacts on humans and animals. These toxins and/or their metabolites cannot be destroyed with cooking or boiling methods. Therefore, consumption of aflatoxin-contaminated food may lead to impaired growth, compromised immunity, stomach and liver cancer, and acute toxicity. These adverse effects along with food wastage might have detrimental consequences on a country's economy. Several studies from Pakistan reported a high preval...
Source: Food and Chemical Toxicology - August 31, 2023 Category: Food Science Authors: Waseela Ashraf Abdul Rehman Masood Rabbani Waseem Shaukat Jia-Sheng Wang Source Type: research
Gold(I)-Catalyzed Ring-Closing Alkyne-Carbonyl Metathesis for the Synthesis of Butenolides
Chemistry. 2023 Aug 31:e202302044. doi: 10.1002/chem.202302044. Online ahead of print.ABSTRACTAlkyne-carbonyl metathesis is a type of carbon-carbon forming reaction involving the construction a carbon-carbon double bond and a carbonyl group in one transformation. Herein, a Au(I)-catalyzed ring-closing alkyne-carbonyl metathesis protocol has been developed to make densely substituted γ-butenolides from propargyl α-ketoesters. It features 100% atom economy, excellent substrate flexibility and benign functional group tolerance. Mechanistic studies demonstrate that the coordinative interaction between the gold catalyst and t...
Source: Chemistry - August 31, 2023 Category: Chemistry Authors: Zhenjie Su Pathan Mosim Amin Shaozhong Wang Source Type: research
Aflatoxins posing threat to food safety and security in Pakistan: Call for a one health approach
Food Chem Toxicol. 2023 Aug 29:114006. doi: 10.1016/j.fct.2023.114006. Online ahead of print.ABSTRACTAflatoxins are among the most important mycotoxins due to their widespread occurrence and adverse impacts on humans and animals. These toxins and/or their metabolites cannot be destroyed with cooking or boiling methods. Therefore, consumption of aflatoxin-contaminated food may lead to impaired growth, compromised immunity, stomach and liver cancer, and acute toxicity. These adverse effects along with food wastage might have detrimental consequences on a country's economy. Several studies from Pakistan reported a high preval...
Source: Food and Chemical Toxicology - August 31, 2023 Category: Food Science Authors: Waseela Ashraf Abdul Rehman Masood Rabbani Waseem Shaukat Jia-Sheng Wang Source Type: research
Biobased Dimethyl Isosorbide as an Efficient Solvent for Alkaline Hydrolysis Waste Polyethylene Terephthalate to Terephthalic Acid
Green Chem., 2023, Accepted Manuscript DOI: 10.1039/D3GC02308G, PaperHaitao Yu, Yang Wang, Lan Chen, Chenyang Wei, Tiancheng Mu, Zhimin Xue Recycling spent polyesters, a widely used type of plastic, is highly important for a circular economy but remains a great challenge. Herein, biomass-derived dimethyl isosorbide (DMI) was developed as an... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - Green Chem. latest articles - August 30, 2023 Category: Chemistry Authors: Haitao Yu Source Type: research
ROOTS - Circular policies for changing the biowaste system
Open Res Eur. 2023 May 16;3:78. doi: 10.12688/openreseurope.15507.1. eCollection 2023.ABSTRACTThe circular economy has a huge potential to make our societies more sustainable and decarbonised, with a reduced impact on the planet's resources. The deployment of innovative solutions in the field of urban biowaste valorisation and reuse is still hindered by numerous bottlenecks, such as technological readiness, funding and financing tools availability, quality and quantity of biowaste and regulatory barriers. The European Green Deal and associated legislative initiatives provide the opportunity to overcome the last ones. To pr...
Source: Cell Research - August 30, 2023 Category: Cytology Authors: Miguel Ángel Suárez Elisa Gambuzzi Jos é M Soriano Disla Gemma Castej ón Giulio Poggiaroni James Ling Source Type: research
How does climate policy uncertainty affect green technology innovation at the corporate level? New evidence from China
Environ Res. 2023 Aug 28:117003. doi: 10.1016/j.envres.2023.117003. Online ahead of print.ABSTRACTThe frequent occurrence of extreme weather reminds us to focus more attention on sustainable development. A panel of Chinese A-share listed companies is selected as a research sample to explore how climate policy uncertainty has an effect on companies' green technology innovation. According to the empirical findings, corporate green technology innovation is negatively related to the uncertainty of climate policy. By affecting their R&D investments and risk tolerance, corporations' ability to develop in green technologies h...
Source: Environmental Research - August 30, 2023 Category: Environmental Health Authors: Shuhai Niu Juan Zhang Renfu Luo Yanchao Feng Source Type: research
Dissolution of transactional sex relationships during COVID-19: a qualitative study of Ugandan men's experiences during COVID-19 lockdowns
Cult Health Sex. 2023 Aug 30:1-14. doi: 10.1080/13691058.2023.2238796. Online ahead of print.ABSTRACTThe COVID-19 pandemic and subsequent mitigation measures led to social disruption and negative economic shocks for a large proportion of Uganda's population. The social and economic consequences of COVID-19 on Ugandan men's sexual behaviours, including transactional sex relationships, are unclear. We conducted in-depth interviews between November 2021-February 2022 with 26 men in a high HIV prevalence region of Uganda. Data were analysed thematically to understand how sexual relationships, including transactional sex, were ...
Source: Culture, Health and Sexuality - August 30, 2023 Category: International Medicine & Public Health Authors: Holly M Nishimura Neema Nakyanjo William Ddaaki Anne C Kiyingi Emmanuel Mukwana Fred Nalugoda Charles Ssekyewa Julie Denison M Kate Grabowski Joseph Kagaayi Caitlin E Kennedy Source Type: research
