Microbial protein sources: A comprehensive review on the potential usage of fungi and cyanobacteria in sustainable food systems

Food and Humanity, Journal Year: 2024, Volume and Issue: 3, P. 100366 - 100366

Published: July 27, 2024

Language: Английский

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Synthesis and characterization of allomelanin model from 1,8-dihydroxynaphthalene autooxidation

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 2, 2025

In this work a novel method for synthesis of 1,8-dihydroxynaphthalene melanin was presented, as well the physicochemical properties, molecular structure, and characteristics pigment. The proposed protocol is simple cost-effective with no enzymes or catalysts needed. final product not adsorbed on any surface, since pigment result autooxidation 1,8-dihydroxynaphthalene. Performed analyses revealed that solubility, optical paramagnetic properties are typical melanins, in EPR spectra an unusual hyperfine structure observed. consists three different layers forming polar non-polar surfaces. Additionally, presence ether bonds revealed. developed creates new opportunities research eliminates need to extract melanins from biological samples, which often lead structural changes isolated undermines reliability these polymers. On other hand, ubiquity living organisms diversity their functions have let growing interest researchers group pigments. carried out show obtained synthetic DHN polymer can be considered model DHN-melanin mycological studies material research.

Language: Английский

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Tecnologias digitais na Educação: Vantagens, desafios e estratégias para uma integração eficiente no contexto brasileiro

E-Acadêmica, Journal Year: 2025, Volume and Issue: 6(1), P. e0261600 - e0261600

Published: Jan. 6, 2025

O presente estudo aborda as vantagens, benefícios, riscos e estratégias para a otimização do uso ambiente digital na educação, analisando suas implicações no contexto educacional brasileiro. objetivo central foi investigar como tecnologias digitais podem contribuir o processo de ensino-aprendizagem, identificando tanto os benefícios quanto desafios associados à sua implementação. Metodologicamente, pesquisa adotou uma abordagem qualitativa, com revisão bibliográfica em fontes acadêmicas publicadas entre 2019 2024, buscando referências bases Google Acadêmico, SciELO Periódicos CAPES. Os resultados demonstraram que oferecem acesso ampliado informação, flexibilidade ensino, personalização aprendizado desenvolvimento habilidades essenciais século XXI, autonomia, pensamento crítico resolução problemas. No entanto, persistem significativos, incluindo desigualdade às tecnologias, formação inadequada dos professores, privacidade segurança dados dependência excessiva dispositivos eletrônicos. Para superar esses obstáculos, foram sugeridas capacitação contínua educadores, políticas públicas inclusivas, alfabetização eficaz adoção metodologias pedagógicas inovadoras. Conclui-se que, embora não resolvam sozinhas problemas estruturais da quando planejadas implementadas forma crítica sustentável, têm potencial transformar positivamente cenário brasileiro, preparando estudantes contemporâneos.

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Radiotrophic fungi and their use as bioremediation agents of areas affected by radiation and as protective agents

Research Society and Development, Journal Year: 2025, Volume and Issue: 14(1), P. e2514147965 - e2514147965

Published: Jan. 6, 2025

Nuclear waste, from nuclear fuel and accidents, represents a great risk to the environment human beings, causing several problems such as malformation, cancer, it can turn areas uninhabitable, changes in fauna flora of entire areas. In search for more effective way deal with contaminants, is proposed use radiotrophic fungi, those found inhabiting reactor Chernobyl Ukraine, poles, international space station, due their high resistance these power absorption ionizing radiation deposition radioisotopes cell walls, making possible removal them which they are found, well consumption organic matter, graphite present number 4 Chernobyl. Another property be explored protective organisms reduce incidence interest protect beings. Therefore, this research aimed study mechanisms action effectiveness bioremediation agents. The consisted bibliographical review, using database resources library collection University Passo Fundo, totaling 56 materials (articles books), after compilation evaluation, concluded that fungi promising agents, potential protecting equipment, beings biosensors detect presence radiation.

Language: Английский

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Structural Changes and Functional Properties of Soluble Dietary Fiber from Buckwheat Bran by Different Processing Treatment

Published: Jan. 1, 2025

This study investigated the effects of seven processing methods on structure and functional properties soluble dietary fiber (SDF) from tartary buckwheat bran, included microwave radiation, high-pressure steam, Aspergillus niger fermentation, Trichoderma viride combinations these with radiation. The results showed that microwave-assisted fermentation (MA-S) was most effective method for improving SDF, significantly increased SDF content. Scanning electron microscopy revealed MA-S-treated had a typical honeycomb-like porous structure. X-ray diffraction analysis MA-S treatment crystallinity improved its thermal stability. excellent properties. Additionally, enhanced adsorption capacity cholesterol, nitrite, bile salts under simulated gastrointestinal pH conditions. Antioxidant activity measurement DPPH free radical scavenging SDF. Moreover, different extraction resulted in differences monosaccharide composition glucose, galactose, xylose, arabinose, uronic acid being affected. provides new insights scientific evidence development bran which has significant implications application foods.

Language: Английский

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How Habitable Are M Dwarf Exoplanets? Modeling Surface Conditions and Exploring the Role of Melanins in the Survival of Aspergillus niger Spores Under Exoplanet-Like Radiation

Astrobiology, Journal Year: 2025, Volume and Issue: 25(3), P. 161 - 176

Published: March 1, 2025

Exoplanet habitability remains a challenging field due to the large distances separating Earth from other stars. Using insights biology and astrophysics, we studied of M dwarf exoplanets by modeling their surface temperature flare ultraviolet (UV) X-ray doses using martian atmosphere as shielding model. Analyzing Proxima Centauri TRAPPIST-1 systems, our models suggest that b e are likeliest have temperatures compatible with liquid water, well tolerable radiation environments. Results were used basis for microbiology experiments assess spore survival germination melanin-rich fungus Aspergillus niger exoplanet-like (UV-C X-rays). showed A. spores can endure superflare events on planets when shielded Mars-like or thin layer soil water. Melanin-deficient suspended in solution higher rates efficiency compared melanin-free solutions. Overall, developed this work establish framework microbiological research studies. Finally, survive harsh conditions simulated exoplanets, which also emphasizes importance multifunctional molecules like melanins beyond Earth.

Language: Английский

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Stress Response of Aspergillus niger Spores to Copper Surfaces and the Implications for Antifungal Surface Functionalization

Advanced Materials Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Abstract Fungal contaminations pose a persistent challenge in the fields of healthcare, agriculture, and industry, primarily due to their environmental adaptability increasing resistance antifungal agents. In this study Aspergillus niger is utilized as model organism. This work evaluates copper, brass, steel surfaces functionalized with ultrashort pulsed laser‐induced periodic surface structures (USP‐DLIP) designed 3 9 µm topographies. spore viability assays show that periodicities on copper achieve 99% reduction viability, indicating increased ion release key factor enhanced effectivity. Scanning electron microscopy (SEM) analysis confirm substantial damage, linked testing measured by inductively coupled plasma triple quadrupole mass spectrometry (ICP‐QQQ) spectrometry. Interestingly, structured reveal trend toward activity despite inert nature. Whereas brass do not significant improvement activity. These findings suggest USP‐DLIP structuring stainless‐steel have considerable potential for applications, although interactions between structures, released ions, fungal spores are highly complex. Yet, offers promising advantages developing advanced materials.

Language: Английский

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Self-disassembling nanoparticles as oral nanotherapeutics targeting intestinal microenvironment

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: April 9, 2025

Inspired by the survival strategies of pyomelanin-producing microbes, we synthesize pyomelanin nanoparticles (PMNPs) from homogentisic acid- γ-lactone via auto-oxidation and investigate their biomedical potential. PMNPs possess distinct physicochemical properties, including reactive oxygen species scavenging microenvironment-responsive self-disassembly. Under intestinal conditions, self-disassemble penetrate nanoscale pores mucin layer. In an inflammatory bowel disease model, orally administered withstand gastric acidity and, in solubilized form, interact with macrophages epithelial cells. They significantly reduce levels, exert anti-inflammatory effects, restore gut microbiota composition. Compared to conventional 5-aminosalicylic acid, exhibit greater therapeutic efficacy. Clinical symptoms inflammation are alleviated, is restored near-normal levels. These findings underscore potential for treatment suggest broader applications.

Language: Английский

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Amorosia littoralis Mantle & D. Hawksw. survives as root endophyte of mangroves and produces water soluble melanin pigment

Fungal Biology, Journal Year: 2024, Volume and Issue: 128(5), P. 1954 - 1959

Published: June 15, 2024

Language: Английский

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Ризики бiотехнологiй отримання амiлоглюкозидази за умов змiненої гравiтацiї

Problems of Environmental Biotechnology, Journal Year: 2023, Volume and Issue: 1

Published: Dec. 12, 2023

Розглянуто ризики біотехнологій отримання амілоглюкозидази при зміненій гравітації.

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