Published: Jan. 1, 2024
Language: Английский
Fermentation, Journal Year: 2023, Volume and Issue: 9(11), P. 934 - 934
Published: Oct. 26, 2023
With the rising demands for renewable fuels, there is growing interest in utilizing abundant and sustainable non-edible biomass as a feedstock bioethanol production. Macroalgal contains high content of carbohydrates form special polysaccharides like alginate, agar, carrageenan that can be converted to fermentable sugars. In addition, using seagrass production provide energy source while addressing environmental concerns. It resource-rich plant offers several advantages production, including its cellulose content, rapid growth rates, abundance coastal regions. To reduce sugar support efficient microbial fermentation, co-fermentation macroalgae with (marine biomass) complementary sugars nutrients improve process yields economics. This review comprehensively covers current status future potential fermenting macroalgal seagrass, well possible combinations maximizing from crops. An overview provided on biochemical composition pretreatment methods, hydrolysis, fermentation processes. Key technical challenges strategies achieve balanced co-substrate are discussed. The feasibility consolidated bioprocessing directly convert mixed feedstocks ethanol also evaluated. Based research, macroalgae-seagrass shows good yields, lower cost, enable more optimal utilization diverse marine resources compared individual substrates.
Language: Английский
Citations
11
Minerals, Journal Year: 2024, Volume and Issue: 14(9), P. 943 - 943
Published: Sept. 15, 2024
Industrial solid residual waste (ISRW) generated during and/or due to the making of energy, heat, and raw materials poses a major threat sustainable future its large production quantities complex characteristics. Especially improper disposal ISRW (e.g., coal ashes, municipal residue, biomass ashes) not only threatens human health but can also cause environmental hazards such as water, soil, air pollution, upsetting global balance. Given impacts well increasingly stringent regulations, lack landfills, economic constraints, more naturally friendly management strategies are being adopted for ISRW. While numerous studies in literature have considered various characteristics ISRW, complete appraisal entire practice, from disposal, is still lacking. This paper presents an overview making, features, traditional innovative managing tactics within context general legal framework. provides scientific review types, quantities, Additionally, orthodox ISRWs scrutinized sociological ecological standpoint, diverse techniques viable secure elucidated. culminates examination impact advantages policies based on legislation regulations. Consequently, this seeks elucidate extant practices few recent advancements pertaining ISRWs. it underscores ecological, sociological, issues engendered by proposes applications technologies.
Language: Английский
Citations
4
Journal of Marine Science and Application, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 7, 2025
Language: Английский
Citations
0
Fermentation, Journal Year: 2025, Volume and Issue: 11(2), P. 56 - 56
Published: Jan. 28, 2025
Microplastics (MPs), as frequent pollutants, persist in aquatic environments and have an impact on the growth biomass production of microalgae. This study employed MPs polyethylene (PE), polystyrene (PS), polypropylene (PP) at concentrations 250 mg/L with MP sizes 50, 100, 300, 500 µm to investigate their influences bio-production Scenedesmus quadricauda. The results revealed that suppressed S. quadricauda increased algal lipid production. order terms inhibitory effect was following: PP > PS PE. size sensitivity 50 100 300 µm. In culture, inhibition microalgal (inhibition rate: 49.26%) accumulation lipids (total content: 65.40%) were most significant, especially neutral content. Additionally, scanning electron microscopy (SEM) Fourier-transform infrared spectroscopy (FTIR) analyses proved rough surface led high aggregation microalgae, reduced intensities protein-, lipid-, carbohydrate-related bands affected structure cells.
Language: Английский
Citations
0
Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 213, P. 115458 - 115458
Published: Feb. 8, 2025
Language: Английский
Citations
0
Published: July 28, 2023
: Seaweeds are among the most important biomass feedstocks for production of third generation biofuels. They also efficient in carbon sequestration during growth, and produce a variety high value chemicals. Given these characteristics together with relatively carbohydrate content, seaweeds have been discussed as an ideal means CO2 capture biofuel production. Though biofuels emerged some best alternatives to fossil fuels, there is currently no large-scale or mainstream use such liquid fuels due many technical challenges costs. The present study describes concept coastal marine biorefineries cost-effective sustainable approach from sea-weeds well atmospheric storage (CCS). suggested refinery system makes resources, namely seawater, seaweed, microorganisms. Firstly, extensive screening current literature was performed determine which technologies would enable emergence novel biorefinery its merits over conventional refineries. Secondly, investigates various scenarios assessing potential sequestration. We demonstrate that removal 100 Gigatons excess using seaweed farms can be achieved around 4 months less than 12 years depending on area under cultivation species. total bioethanol could generated harvested 8 trillion litres. In addition, high-value chemicals (HVC) potentially recovered process represent considerable op-portunity multi-billion-dollar commercial value. Overall, strong green economy rep-resent rapid climate change mitigation.
Language: Английский
Citations
8
Saudi Journal of Biological Sciences, Journal Year: 2023, Volume and Issue: 30(6), P. 103681 - 103681
Published: May 5, 2023
The present study evaluated the impact of rac-GR24 on biomass and astaxanthin production under phenol stress coupled with biodiesel recovery from Haematococcus pluvialis. Phenol supplementation showed negative growth, where lowest productivity 0.027 g L-1 day-1 was recorded at 10 µM phenol, while 0.4 highest 0.063 day-1. Coupling different concentrations confirmed potential to mitigate toxic effect by enhancing yield PSII yield, RuBISCo activity, antioxidant efficiency, which resulted in improved phycoremediation efficiency. In addition, results suggested a synergistic action treatment enhanced lipid accumulation, production. Dual FAMEs content, 32.6% higher than control, quality. approach could enhance economic feasibility triple-purpose application microalgae wastewater treatment, recovery,
Language: Английский
Citations
6
Fermentation, Journal Year: 2022, Volume and Issue: 8(12), P. 682 - 682
Published: Nov. 27, 2022
The present study aimed to optimize synthetic wastewater composition as a mixotrophic medium for enhanced growth and lipid accumulation coupled with high nitrogen removal by the green microalga Chlorella sp. Individual effects of three main independent variables (nitrate concentration, seawater ratio, glycerol supplementation) were tested initially, then response surface methodology (RSM) was subsequently performed explore optimum combined conditions. highest productivity 37.60 mg/L day recorded at 25% seawater. Glycerol supplementation both content biomass production, which resulted in 42.61 4 g/L glycerol. Central composite design followed numerical optimization further applied suggested NaNO3 concentration 101.5 mg/L, ration 23.8%, 0.25 conditions dual maximum 46.9 98.0%, respectively. Under optimized conditions, dry weight increased 31.9% 20.3%, respectively, over control, increase 71.5%. In addition, process pronounced changes fatty acid proportions where saturated acids 7.4% culture simultaneous reduction polyunsaturated acids. estimated biodiesel characteristics calculated from methyl ester (FAMEs) profile showed agreement international standards, while cultures an 8.5% lower degree unsaturation, higher cetane numbers iodine values. This provides economical approach efficient nutrient recycling through cultivation production.
Language: Английский
Citations
9
Fermentation, Journal Year: 2023, Volume and Issue: 9(6), P. 554 - 554
Published: June 10, 2023
Biofuels and bio-based products are among the best alternatives to fossil-based fuels chemicals due their capacity for net-negative carbon emissions, which is a vital contribution global ambition of net-zero economy [...]
Language: Английский
Citations
5
Energies, Journal Year: 2023, Volume and Issue: 16(14), P. 5462 - 5462
Published: July 18, 2023
The mass arrival of pelagic sargassum is an international issue that currently taking its toll on the economic activity affected regions by causing a significant reduction in investment and tourism. purpose this work was to evaluate Logistic Modified Gompertz sigmoid kinetic models for describing lag phase generation biomethane. case studies were: anaerobic co-digestion (ACoD) Sargassum spp./domestic organic waste spp. mono-digestion. experimental method, based biochemical methane potential (BMP), enabled be built production under environmental conditions estimate made duration phase. maximum cumulative determined monodigestion 140.7 cm3 CH4/g SV at 99 days, ACoD, it 161.3 172 days. approximately 7 days 93 respectively. It concluded modified growth functions are valuable tool studying start-up scaling systems ACoD waste. results present coastal algae domestic as alternative energy source.
Language: Английский
Citations
5