Results 41 to 50 of about 15,215 (310)
Effect of Melanization on Thallus Microstructure in the Lichen Lobaria pulmonaria
Journal of Fungi, 2022 Lichens often grow in microhabitats where they experience severe abiotic stresses. Some species respond to high UV radiation by synthesizing dark brown melanic pigments in the upper cortex. However, unlike the melanized structures of non-lichenized fungi,
Amina G. Daminova +4 more
doaj +1 more source
Food Science &Nutrition, Volume 11, Issue 1, Page 191-203, January 2023., 2023 The IOP‐A has a hypolipidemic effect, which may be due to its ability to regulate the expression of CYP7A1 and SREBP‐1c, as well as to correct an imbalance in the structure of the intestinal microflora. Abstract The purpose of this study was to observe the effect of Inonotus obliquus polysaccharide (IOP) on blood lipids and its regulation on the ...
Fengyuan Lin +7 more
wiley +1 more source
Studying grain color diversity in the barley collection of VIR
Труды по прикладной ботанике, генетике и селекции, 2022 Background. Dark color of barley grain (Hordeum vulgare L.) can be caused by the synthesis and accumulation of two types of polyphenolic pigments – anthocyanins and melanins, which perform important functions in plant life, participating in the ...
A. Y. Glagoleva +4 more
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Differential Antifungal Activity of Human and Cryptococcal Melanins with Structural Discrepancies
Frontiers in Microbiology, 2017 Melanin is a pigment found in all biological kingdoms, and plays a key role in protection against ultraviolet radiation, oxidizing agents, and ionizing radiation damage. Melanin exerts an antimicrobial activity against bacteria, fungi, and parasites.
Néstor Correa +12 more
doaj +1 more source
Ultraviolet radiation and melanogenesis [PDF]
Archive of Oncology, 2004 Light radiation is a part of the electromagnetic radiation, and it consists of the ultraviolet (UV) radiation, visible light, and infrared radiation.
Stanojević Milenko R. +3 more
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Nukleonika, 2015 Free radicals in synthetic melanin and melanin from Sepia officinalis were studied by electron paramagnetic resonance (EPR) spectroscopy. The effect of time of ultraviolet (UV) irradiation on free radicals in these melanins was tested.
Zdybel Magdalena, Pilawa Barbara
doaj +1 more source
Charting the landscape of the environmental exposome
iMeta, Volume 1, Issue 4, December 2022., 2022 We describe the biological and chemical components of the environmental exposomes in three major environmental matrices that are highly relevant to human and social‐economical health—air, soil, and water. We discuss how different exposome components can interact with each other. Finally, we propose a list of outstanding challenges to be tackled to push
Xin Wei +6 more
wiley +1 more source
Melanins of Inonotus Obliquus: Bifidogenic and Antioxidant Properties
Biomolecules, 2019 Extracts and melanins from Inonotus obliquus are widely used in medicine due to their high antioxidant properties. This study is dedicated to define the influence of the physicochemical and antioxidant properties of Inonotus obliquus melanins and their ...
Marina A. Burmasova +3 more
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Melanina, um pigmento natural multifuncional [PDF]
arXiv, 2021 The melanins are a ubiquitous class of pigments found throughout nature from lower organisms to humans. It is one of the few biopolymers with fascinating functions in biology, medicine, chemistry, physics and engineering due to its relation to neurological diseases, skin disorders and melanoma, and, in the last couple of decades, its applications in ...
arxiv
Quantitative photoluminescence of broad band absorbing melanins: A procedure to correct for inner filter and re-absorption effects [PDF]
, 2004 We report methods for correcting the photoluminescence emission and excitation spectra of highly absorbing samples for re-absorption and inner filter effects. We derive the general form of the correction, and investigate various methods for determining the parameters. Additionally, the correction methods are tested with highly absorbing fluorescein and
arxiv +1 more source