Efficient production of natural sunscreens shinorine, porphyra-334, and mycosporine-2-glycine in Saccharomyces cerevisiae

Metabolic Engineering, Journal Year: 2023, Volume and Issue: 78, P. 137 - 147

Published: May 29, 2023

Language: Английский

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Unraveling the metabolic effects of benzophenone-3 on the endosymbiotic dinoflagellate Cladocopium goreaui

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 13

Published: March 1, 2023

As a well-known pseudo-persistent environmental pollutant, oxybenzone (BP-3) and its related organic ultraviolet (UV) filters have been verified to directly contribute the increasing mortality rate of coral reefs. Previous studies revealed potential role symbiotic Symbiodiniaceae in protecting corals from toxic effects UV filters. However, detailed protection mechanism(s) not explained. Here, impacts BP-3 on Cladocopium goreaui were explored. C. cells exhibited distinct cell growth at different doses, with lower concentration (2 mg L-1) rapid death higher (20 L-1). Furthermore, showed significant uptake concentration. absorbing elevated photosynthetic efficiency, decreased cellular carbon nitrogen contents. Besides, derivatives aromatic amino acid metabolism highly responded absorption biodegradation. Our physiological metabolic results reveal that could resist toxicity range through promoting division, photosynthesis, reprogramming metabolism. This study provides novel insights into influences reef ecosystems, which urgently needs attention management.

Language: Английский

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Toxicity of the sunscreen UV filter benzophenone-3 (OBZ) to the microalga Selenastrum capricornutum: An insight into OBZ’s damage to photosynthesis and respiration

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 278, P. 116441 - 116441

Published: May 10, 2024

Oxybenzone (OBZ; benzophenone-3, CAS# 131-57-7), as a new pollutant and ultraviolet absorbent, shows significant threat to the survival of phytoplankton. This study aims explore acute toxic effects OBZ on growth microalga Selenastrum capricornutum, well mechanisms for its damage primary metabolic pathways photosynthesis respiration. The results demonstrated that concentrations 50 % maximal effect (EC50) S. capricornutum were 9.07 mg L

Language: Английский

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Nanobiotech engineering for future coral reefs

One Earth, Journal Year: 2023, Volume and Issue: 6(7), P. 778 - 789

Published: June 5, 2023

Advances in bioengineering and nanotechnology are revolutionizing how we approach problems deemed unsolvable only a decade ago. Nanotechnology has transformed biomedicine, agriculture, energy science, with broad translational capacity to natural systems. Coral reef ecosystems provide immense biodiversity economic value but being degraded at an unprecedented rate, triggering calls for human interventions such as those that have been applied biomedical Here, propose next-generation nanobiotechnology (nanocarriers, nanobiosensors, 3D bioprinting) can be leveraged solutions the persistence of future reefs. We advocate initiating critical dialogues developing tools apply coral ecosystems. challenge invite scientific community industry harness expand available toolkits monitoring, rehabilitation, restoration, conservation reefs worldwide.

Language: Английский

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Chemicals of Emerging Arctic Concern in north-western Spitsbergen snow: Distribution and sources

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 908, P. 168401 - 168401

Published: Nov. 6, 2023

Personal care products contain chemicals that are considered of emerging concern in the Arctic. In this study, a selected group personal was investigated snowpack on north-western Spitsbergen. We report preliminary study spatial and seasonal distribution 13 ingredients commonly found products, including fragrance materials, UV filters, BHT BPA. Possible sources deposition processes discussed. Experimental analyses utilizing GC-MS/MS, were complemented with outputs from HYSPLIT transport dispersion model. The results reveal presence all compounds snow, both proximity to distant research village Ny-Ålesund. For some these is first time their reported snow Svalbard. These show different partitioning behaviours between particulate dissolved phases, affecting processes. Additionally, concentrations certain vary across altitudes. It observed relevance long-range atmospheric during winter at most sites, and, regardless human settlements, can be influenced by long-distance sources. This highlights need for detailed information CEACs' physical-chemical properties, considering potential impact fresh marine waters snowmelt under climate change.

Language: Английский

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Hyaluronic acid/polyphenol sunscreens with broad-spectrum UV protection properties from tannic acid and quercetin

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 257, P. 128585 - 128585

Published: Dec. 4, 2023

Language: Английский

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Long‐lasting UV‐blocking Mechanism of Lignin: Origin and Stabilization of Semiquinone Radicals

Small Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 9, 2024

Abstract Semiquinone (SQ) radicals play a critical role in the long‐lasting UV‐blocking application of lignin, while their origin and stable structure are unclear. Here, organosolv lignin extracted from poplar (OL‐P) is self‐assembled into normal micelles (LNM) with more phenolic hydroxyl groups on surface, reverse (LRM) methoxyl surface. After 12 h UV irradiation, SQ radical contents LNM LRM increase 33% 78% respectively. The performance based sunscreen keeps upswinging due to stabilization groups. experiences gradual decrease after reaching maximum absorbance quick generation over oxidation radicals. Density functional theory (DFT) simulations reveal that OL‐P has bigger bond length smaller dissociation enthalpy than groups, easy form Gibbs free energy (ΔG) needed for SQ‐quinone transformation above 26.10 kcal mol. −1 , SQ‐hydroquinone below −66.78 . Hydroquinone This work discloses under provides an important guidance its application.

Language: Английский

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Sunlight-mediated environmental risks of tinidazole in seawater: A neglected ocular toxicity of photolysis mixtures

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137217 - 137217

Published: Jan. 14, 2025

Language: Английский

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UV Radiation Triggers Mycosporine-Glutaminol-Glucoside Biosynthesis in Naganishia friedmannii FBU002, a non-pathogenic yeast

Journal of Applied Microbiology, Journal Year: 2025, Volume and Issue: 136(3)

Published: Feb. 28, 2025

Ultraviolet radiation (UVR) interferes with aspects of life on Earth. It is necessary for the synthesis important molecules, as vitamin D, but it harmful to organisms leading photoaging and skin cancer. Artificial sunscreens prevent these effects, may be carcinogenic neurotoxic; also they accumulate in aquatic ecosystem, harming environment coral bleaching. Most artificial commercialized are fossil fuel derived produced by petrochemical industry. As society turns bioeconomy, substituted sustainable ones. Algae, cyanobacteria, fungi produce mycosporines mycosporine-like aminoacids, which absorb UV dissipate heat. They a natural source sunscreen low or no toxicity can biotechnological means; therefore, aim this study search mycosporine biosynthesis yeast from an extreme environment. Chromatographic spectroscopic data analyses demonstrated first time isolate Naganishia friedmannii, collected site high UVR incidence, able mycosporine-glutaminol-glucoside (MGG) its likely diastereoisomer, when exposed photosynthetically active (PAR)-UVR light. A biosynthetic gene cluster was identified N. friedmannii genome shown induced response real-time polimerase chain reaction (RT-PCR). Phenotypic characterization suggests non-pathogenic that tolerates UVC (UltraViolet C) other stresses. These features make suitable applications, adding value additive economically viable, environmentally friendly sunscreens.

Language: Английский

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Enhanced removal of phenolic compounds by ferrate(VI): Unveiling the Bi(III)-Bi(V) valence cycle with in situ formed bismuth hydroxide as catalyst

Water Research, Journal Year: 2023, Volume and Issue: 248, P. 120827 - 120827

Published: Nov. 7, 2023

Language: Английский

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