Results 41 to 50 of about 453 (130)

A Novel HILIC‐UPLC‐DAD‐MS/MS Method for the Analysis of Mycosporine‐Like Amino Acids and Their Quantification in Diverse Algae

ELECTROPHORESIS, Volume 47, Issue 7, Page 620-628, July 2026.
The separation of selected mycosporine‐like amino acids and two biosynthetic precursors, in total 13 compounds, by HILIC‐UPLC is described for the first time. With an analysis time of only 5 min, it surpasses all currently known methods for analysis of these promising natural products.
Armin Oberosler, Anastasiia Fedorova, Ignacio Zegri, Fabian Hammerle, Michael Zwerger, Thomas Werner, Markus Ganzera   +6 more
wiley   +1 more source

Exploring natural sunscreens: UVB protection and antioxidant properties in gadusol‐rich fish roes extracts

Photochemistry and Photobiology, Volume 102, Issue 4, Page 877-888, July/August 2026.
Gadusol‐rich extracts provide effective UVB protection and antioxidant activity in HaCaT cells and C. elegans, highlighting their potential as natural photochemoprotective agents for pharmaceutical and cosmetic applications. It also demonstrates remarkable in vitro antioxidant capacity and thermal stability over time.
Rocío Isla Naveira, Gabriela Hollmann, José María Monserrat, Ana Paula S. Votto, Julie Medeiros da Silveira, Andressa Mai Matsumoto, Lais Zortéa, Andy Joel Taipe Huisa, Agueda E. Massa, M. Sandra Churio   +9 more
wiley   +1 more source

Profiling of mycosporine-like amino acids (MAAs) in wild Hypnea spp. and semi-closed cultivated Hypnea musciformis (Gigartinales, Rhodophyta) from the Colombian Caribbean

Results in Chemistry
Mycosporine-like amino acids are marine natural products with significant ultraviolet radiation absorption capacity, positioning them as promising candidates for the cosmetic industry. This study aims to evaluate the MAAs content in wild-type Hypnea spp.
Jessica González-Torres, Dayan Vargas, Vanessa Urrea-Victoria, María Helena Benavides, Gladys Rozo, Monica Puyana, Freddy A. Ramos, Geison Costa, Leonardo Castellanos   +8 more
doaj   +1 more source

UVA and UVB Photoprotective Capabilities of Topical Formulations Containing Mycosporine-like Amino Acids (MAAs) through Different Biological Effective Protection Factors (BEPFs)

Marine Drugs, 2019
The safety and stability of synthetic UV-filters and the procedures for evaluating the photoprotective capability of commercial sunscreens are under continuous review.
Francisca de la Coba, José Aguilera, Nathalie Korbee, María Victoria de Gálvez, Enrique Herrera-Ceballos, Félix Álvarez-Gómez, Félix L. Figueroa   +6 more
doaj   +1 more source

Photophysics of Biological and Biomimetic Sunscreen Molecules

ChemPhotoChem, Volume 10, Issue 5, May 2026.
Recent photochemical and photophysical research into natural and nature‐inspired UV filter molecules is reviewed, with a focus on the application of these systems in next‐generation sunscreens. The results of time‐resolved UV spectroscopy experiments and theoretical studies are discussed.
Michael Hymas, Vasilios G. Stavros
wiley   +1 more source

Analysis of Mycosporine-Like Amino Acids in Selected Algae and Cyanobacteria by Hydrophilic Interaction Liquid Chromatography and a Novel MAA from the Red Alga Catenella repens

Marine Drugs, 2015
Mycosporine-like amino acids (MAAs), a group of small secondary metabolites found in algae, cyanobacteria, lichens and fungi, have become ecologically and pharmacologically relevant because of their pronounced UV-absorbing and photo-protective potential.
Anja Hartmann, Kathrin Becker, Ulf Karsten, Daniel Remias, Markus Ganzera   +4 more
doaj   +1 more source

Osmotic signaling governs sunscreen biosynthesis to safeguard desert cyanobacteria against desiccation

mLife, Volume 5, Issue 2, Page 164-179, April 2026.
Abstract Mycosporine‐like amino acids (MAAs) are natural sunscreens synthesized by a wide range of organisms. Although the induction of MAA production by ultraviolet radiation is well established, the signaling pathways involved and specific functions of MAAs under other stress conditions remain poorly understood.
Lei Zhao, Hai‐Feng Xu, Jin‐Long Shang, Yong Li, Xiao‐Yue Yin, Zhong‐Chun Zhang, Huazhong Shi, Bao‐Sheng Qiu   +7 more
wiley   +1 more source

Antiproliferative and Antioxidant Activities and Mycosporine-Like Amino Acid Profiles of Wild-Harvested and Cultivated Edible Canadian Marine Red Macroalgae

Molecules, 2016
Antiproliferative and antioxidant activities and mycosporine-like amino acid (MAA) profiles of methanol extracts from edible wild-harvested (Chondrus crispus, Mastocarpus stellatus, Palmaria palmata) and cultivated (C. crispus) marine red macroalgae were
Yasantha Athukorala, Susan Trang, Carmen Kwok, Yvonne V. Yuan   +3 more
doaj   +1 more source

UPLC‐QTOF‐MS–Based Metabolite Profiling of Two Laver Species (Neoporphyra dentata and Neopyropia yezoensis)

Journal of Food Processing and Preservation, Volume 2026, Issue 1, 2026.
This study is aimed at characterizing metabolites from Neoporphyra dentata and Neopyropia yezoensis, two laver species primarily cultivated in Korea. Untargeted metabolite analysis was conducted using ultraperformance liquid chromatography–quadrupole time‐of‐flight mass spectrometry (UPLC‐QTOF‐MS), leading to the identification of 63 metabolites. These
Si-Hun Song, Aoding Li, Seung-Sik Cho, Hyung Gyun Kim, Jeong-Yong Cho, Essam Hebishy   +5 more
wiley   +1 more source

Effect of vertical mixing on short-term mycosporine-like amino acid synthesis in the Antarctic diatom, Thalasiossira sp.

Scientia Marina, 2012
One of the adaptations whereby phytoplankton can alleviate damage induced by ultraviolet radiation (280-400 nm) is the synthesis of mycosporine-like amino acids (MAAs).
Marcelo Pablo Hernando, Jose Ignacio Carreto, Mario Carignan, Gustavo Adolfo Ferreyra   +3 more
doaj   +1 more source