Materials of biological origin and biofuels: Small environmental footprint and epigenetic impact (Review)

Papakonstantinou, Eleni; Mitsis, Τhanasis; Dragoumani, Konstantina; Efthimiadou, Αspasia; Bacopoulou, Flora; Chrousos, George P.; Eliopoulos, Elias; Vlachakis, Dimitriοs

doi:10.3892/ije.2021.6

Cited by 3 publications

(1 citation statement)

References 82 publications

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“…Pursuant to the attainment of the sustainable development goals (SDGs) targets, global drift toward the promotion of sustainable urban development, maintenance of a natural environment, and ensuring healthy living has been among the top emphasis in contemporary studies [1] . Previous studies hypothesized that the natural environment encompasses the Earth's living organisms, air, soil, and water [2] , and that damage to this environment affects physical development, and human health [3] . Human-related activities in a bid to utilize the earth's resources for economic and social development purposes have to a large extent been at a cost to the environment and health.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mishandling and Vending of Used Engine Oil on the Environment, Health and Urban Planning in Kaduna Metropolis: A Call to Action for a Paradigm Shift

Shehu,

Azi,

Dyachia Zakka

et al. 2023

upc

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This study examined the effect of mishandling and vending of used engine oil (UEO) on the environment, health, and urban planning. An evaluation of UEO handling, environmental and public health effects, spatial distribution of UEO vendors and contributing factors to choice of location, and the relationship between the vending location and the contributing factors to the choice of the location was provided. The research adopted multiple approaches including questionnaire administration, interview, observation, and application of a Global Positioning System, Geographic Information System, measuring tape, and a camera. An accidental/snowball sampling technique was viable for the study. Data collected were processed using Microsoft Excel. Descriptive and inferential statistical techniques were used. Results revealed the UEO was acquired from mechanic garages (41%) and stored in plastic containers (74%) until it was completely disposed of (91%). 52% had a hazy knowledge of the environmental effect of UEO, yet 45% rated the extent of its contamination as high. 59% were aware of its potential hazard which can get into the human body through ingestion but did not know it could get into the human body through contact with skin (74%) or breathing (61%). However, 84% wash their hands before a meal, with soap/water (67%), and change clothes after handling the used engine oil (69%). Most of the spots were located within 0-20 meters from the road (11), along the highways, occupying the metalled portion of the road, the road shoulders, setbacks, and walkways, blocking drainages and affecting the visual and aesthetic value of the environment. A larger proportion (40) revealed that visibility/accessibility guided their choice of location. Also, a low correlation coefficient of 0.32 was recorded. The study recommended the promotion of awareness programs, enforcement of environmental regulations, good hygiene practices, enforcement of standards and development regulations, and application of smart technology and big data.

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Section: Introductionmentioning

confidence: 99%

Effect of Mishandling and Vending of Used Engine Oil on the Environment, Health and Urban Planning in Kaduna Metropolis: A Call to Action for a Paradigm Shift

Shehu,

Azi,

Dyachia Zakka

et al. 2023

upc

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Growth and Lipid Production of Ankistrodesmus Sp. IFRPD 1061 Under Mixotrophic Culture Condition: Effect of Sodium Acetate Concentration and Period Addition of Sodium Acetate in an Open Pond

Jarungkeerativimol,

Sultan,

Khan

et al. 2024

Chem Eng & Technol

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Microalgae with increased amount of biomass and lipid yield are crucial for biodiesel production. Mixotrophic cultivation has prominence for increasing the micro‐algal cell concentration and hence the volumetric productivity owing to independent utilization of both the photo‐assimilation of CO2 and oxidative assimilation of organic carbon sources. In this study, Ankistrodesmus sp. IFRPD 1061 was examined under various concentrations of sodium acetate for concentration and productivity of biomass and lipid, lipid contents (LCs), and fatty acid profiles. The optimum condition was obtained at Day 21 with 10 mM sodium acetate, which gave 6.940 ± 0.057 g L−1 biomass concentration, 327.619 ± 2.020 mg L−1 day−1 biomass productivity, 2.795 ± 0.191 g L−1 lipid concentration, 131.955 ± 9.275 mg L−1 day−1 lipid productivity, and 40.286 % ± 3.079 % w/w LC. The optimum condition (10 mM sodium acetate) in an open pond cultivation attained maximum values at Day 14, that is, 0.575 ± 0.004 g L−1 biomass concentration, 38.161 ± 0.076 mg L−1 day−1 biomass productivity, 0.203 ± 0.002 g L−1 lipid concentration, 13.440 ± 0.197 mg L−1 day−1 lipid productivity, and 35.219 % ± 0.585 % w/w LC. The lipids recovered from mixotrophic micro‐algae were primarily unsaturated fatty acids, which are appropriate to produce biodiesel. The results revealed that a 10 mM sodium acetate concentration can enhance lipid accumulation within algal cells.

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Microorganisms as New Sources of Energy

Talapko

Matić

et al. 2022

Energies

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The use of fossil energy sources has a negative impact on the economic and socio-political stability of specific regions and countries, causing environmental changes due to the emission of greenhouse gases. Moreover, the stocks of mineral energy are limited, causing the demand for new types and forms of energy. Biomass is a renewable energy source and represents an alternative to fossil energy sources. Microorganisms produce energy from the substrate and biomass, i.e., from substances in the microenvironment, to maintain their metabolism and life. However, specialized microorganisms also produce specific metabolites under almost abiotic circumstances that often do not have the immediate task of sustaining their own lives. This paper presents the action of biogenic and biogenic–thermogenic microorganisms, which produce methane, alcohols, lipids, triglycerides, and hydrogen, thus often creating renewable energy from waste biomass. Furthermore, some microorganisms acquire new or improved properties through genetic interventions for producing significant amounts of energy. In this way, they clean the environment and can consume greenhouse gases. Particularly suitable are blue-green algae or cyanobacteria but also some otherwise pathogenic microorganisms (E. coli, Klebsiella, and others), as well as many other specialized microorganisms that show an incredible ability to adapt. Microorganisms can change the current paradigm, energy–environment, and open up countless opportunities for producing new energy sources, especially hydrogen, which is an ideal energy source for all systems (biological, physical, technological). Developing such energy production technologies can significantly change the already achieved critical level of greenhouse gases that significantly affect the climate.

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Materials of biological origin and biofuels: Small environmental footprint and epigenetic impact (Review)

Cited by 3 publications

References 82 publications

Effect of Mishandling and Vending of Used Engine Oil on the Environment, Health and Urban Planning in Kaduna Metropolis: A Call to Action for a Paradigm Shift

Effect of Mishandling and Vending of Used Engine Oil on the Environment, Health and Urban Planning in Kaduna Metropolis: A Call to Action for a Paradigm Shift

Growth and Lipid Production of Ankistrodesmus Sp. IFRPD 1061 Under Mixotrophic Culture Condition: Effect of Sodium Acetate Concentration and Period Addition of Sodium Acetate in an Open Pond

Microorganisms as New Sources of Energy

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