Optimizing mixotrophic cultivation of oil-rich Tribonema minus using volatile fatty acids and glycerin: A promising approach for pH-controlling and enhancing lipid productivity

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 402, P. 136733 - 136733

Published: March 9, 2023

Language: Английский

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Exploitation of microbial activities at low pH to enhance planetary health

FEMS Microbiology Reviews, Journal Year: 2023, Volume and Issue: 48(1)

Published: Nov. 20, 2023

Abstract Awareness is growing that human health cannot be considered in isolation but inextricably woven with the of environment which we live. It is, however, under-recognized sustainability activities strongly relies on preserving equilibrium microbial communities living in/on/around us. Microbial metabolic are instrumental for production, functionalization, processing, and preservation food. For circular economy, metabolism would exploited to produce building blocks chemical industry, achieve effective crop protection, agri-food waste revalorization, or biofuel as well bioremediation bioaugmentation contaminated areas. Low pH undoubtedly a key physical–chemical parameter needs exploiting powerful arsenal. Deviation from optimal conditions has profound effects shaping responsible carrying out essential processes. Furthermore, novel strategies combat contaminations infections by pathogens rely microbial-derived acidic molecules suppress/inhibit their growth. Herein, present state-of-the-art knowledge impact many applied areas how this can guide us use immense arsenal more impactful exploitation Planetary Health perspective.

Language: Английский

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Insights into nutrients recovery from food waste liquid Digestate: A critical review and systematic analysis

Waste Management, Journal Year: 2025, Volume and Issue: 200, P. 114743 - 114743

Published: March 15, 2025

Language: Английский

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Biobased short chain fatty acid production - Exploring microbial community dynamics and metabolic networks through kinetic and microbial modeling approaches

Biotechnology Advances, Journal Year: 2024, Volume and Issue: 73, P. 108363 - 108363

Published: April 22, 2024

In recent years, there has been growing interest in harnessing anaerobic digestion technology for resource recovery from waste streams. This approach evolved beyond its traditional role energy generation to encompass the production of valuable carboxylic acids, especially volatile fatty acids (VFAs) like acetic acid, propionic and butyric acid. VFAs hold great potential various industries biobased applications due their versatile properties. Despite increasing global demand, over 90% are currently produced synthetically petrochemicals. Realizing large-scale VFA streams offers significant eco-friendly opportunities but comes with several key challenges. These include low yields, unstable acid compositions, complex expensive purification methods, post-processing needs. Among these, yield composition stand out as most critical obstacles impacting economic viability competitiveness. paper seeks offer a comprehensive view combining complementary modeling approaches, including kinetic microbial modeling, understand workings communities metabolic pathways production, enhance efficiency, regulate profiles through integration omics bioreactor data.

Language: Английский

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Effect of Fermentation Time, pH, and Their Interaction on the Production of Volatile Fatty Acids from Cassava Wastewater

Water, Journal Year: 2024, Volume and Issue: 16(11), P. 1514 - 1514

Published: May 25, 2024

Acidogenic fermentation is a technology that involves halting methanogenesis in the conventional anaerobic digestion process to produce mainly volatile fatty acids (VFAs). VFAs serve as direct precursors energy-rich or higher value-added products upon undergoing additional processing. In this study, batch reactors were utilized assess individual and interaction effects of time pH variables on VFA production from acidogenic cassava wastewater through establishment completely randomized design second-order response surface (rotatable central composite design), respectively. The maximum observed was 3444.04 mg acetic acid (HAc)/L (0.58 gCODVFA/gCOD) 6 days, with (48.5%), propionic (28.3%), butyric (13.6%) identified main metabolites. Additionally, assessment effect pH, reached 2547.72 mgHAc/L (0.34 at 5.9, predominant organic acid. Statistically, individually affect wastewater; however, between them generated non-significant effect.

Language: Английский

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Enhancing propionic acid production in the anaerobic fermentation of high-strength starch wastewater facilitated by hydraulic retention time and FeCl3 under alkaline pH

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 64, P. 105615 - 105615

Published: June 15, 2024

Language: Английский

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Volatile Fatty Acids Production by Acidogenic Fermentation of Wastewater: A Bibliometric Analysis

Sustainability, Journal Year: 2023, Volume and Issue: 15(3), P. 2370 - 2370

Published: Jan. 28, 2023

This study presents a bibliometric analysis of the scientific literature on volatile fatty acids (VFA) production from wastewater fermentation published 1981 to 21 June 2021. A total 618 papers obtained Scopus database were analyzed using VOSviewer 1.6.16 software. According results, this topic has been capturing attention researchers over years, but with different research approaches, including optimization anaerobic digestion in two-stage reactors, biological removal nutrients wastewater, energy bioelectrochemical systems, and recovery VFA as value-added intermediate products be used inputs variety industries. In addition, networks authors’ keyword frequency showed that treatment by obtain by-product is an emerging undoubtedly requires further collaboration between institutions. regard, types have substrate for acidogenic fermentation; however, based cassava processing seen one issues field. Finally, evaluating effect operating conditions process, such pH, hydraulic retention time, organic loading rate, temperature, inoculum concentration, independent final application produced, relevant aspect bioprocess implementation large scale.

Language: Английский

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Current Status and Prospects of Valorizing Organic Waste via Arrested Anaerobic Digestion: Production and Separation of Volatile Fatty Acids

Fermentation, Journal Year: 2022, Volume and Issue: 9(1), P. 13 - 13

Published: Dec. 23, 2022

Volatile fatty acids (VFA) are intermediary degradation products during anaerobic digestion (AD) that subsequently converted to methanogenic substrates, such as hydrogen (H2), carbon dioxide (CO2), and acetic acid (CH3COOH). The final step of AD is the conversion these substrates into biogas, a mixture methane (CH4) CO2. In arrested (AAD), suppressed inhibit VFA making main product AAD, with CO2 H2. recovered from AAD fermentation can be further sustainable biofuels bioproducts. Although this concept known, commercialization has been hindered by low titers productivity lack cost-effective separation methods for recovering VFA. This article reviews different techniques used rewire current state art production emphasizing recent developments made increasing complex organic materials. Finally, paper discusses could play pivotal role in producing jet fuels agricultural biomass wet waste

Language: Английский

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Degradation of Ciprofloxacin with Fe(II)-activated Peroxide and Anaerobic Digestion: Treatability Studies in Tap Water and Chicken Waste

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115498 - 115498

Published: Jan. 1, 2025

Language: Английский

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Soil pH and total phosphorus regulate bacterial community assembly in slope restoration areas of the Tibetan Plateau's metal mining areas

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121432 - 121432

Published: March 1, 2025

Language: Английский

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