Results 1 to 10 of about 37,556 (266)
Identification of the orange pigment in Nonomuraea gerenzanensis and development of a pigment-free mutant. [PDF]
AMB ExpressThe secondary metabolite A40926, a precursor to the glycopeptide antibiotic dalbavancin, is synthesized by the rare actinomycete Nonomuraea gerenzanensis (N. gerenzanensis) within the pharmaceutical industry. The biosynthesis of A40926 is accompanied by the production of an orange pigment, which poses significant challenges and incurs high costs in the
Cheng Y, Gao W, Shi S, Han F, Dong H.
europepmc +3 more sources
Identification of a Red Pigment-Producing Strain of <i>Arthrobacter</i> spp. and the Stability of Its Pigments. [PDF]
MicroorganismsWith the rise of environmental protection and health topics in recent years, microbial production of red pigments has gradually become a research hotspot. Red pigment possesses biological properties such as anticancer and antioxidant activities and has a wide range of potential applications in the fields of food and medicine.
Wang J, Yang M, Gao X.
europepmc +4 more sources
Sensors, 2021 Visible and infrared reflectance imaging spectroscopy is one of the several non-invasive techniques used during Operation Night Watch for the study of Rembrandt’s iconic masterpiece The Night Watch (1642).
Francesca Gabrieli +8 more
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Chemosensors, 2022 Due to the similar chemical composition and matrix effect, the accurate identification of mineral pigments on wall paintings has brought great challenges.
Duixiong Sun +9 more
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Mapping Pigments in a Painting with Low Frequency Electron Paramagnetic Resonance Spectroscopy
Heritage, 2021 An electron paramagnetic resonance (EPR) mobile universal surface explorer (MOUSE) was recently introduced for noninvasively studying paramagnetic pigments in paintings.
Shane McCarthy +2 more
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Identification of Chromobacterium violaceum: Pigmented and Non-pigmented Strains [PDF]
Journal of General Microbiology, 1975 The classification and, therefore, identification of Chromobacterium violaceum has been based upon its ability to produce a violet pigment. Although the organism may yield non-pigmented variants when subcultured on artificial media, the isolation of non-pigmented strains from pathological tissues or from nature had not been reported.
R. SIVENDRA, H. S. LO, K. T. LIM
openaire +2 more sources
Effectiveness of Fumigation using Carbon dioxide on the ancient Egyptian pigments applied on ancient wooden artifacts [PDF]
مجلة کلية الآثار - جامعة القاهرة, 2023 The sterilization of organic objects using Carbon dioxide is one of the safest methods which used in conservation of organic materials which eliminates the presence of insects and other aerobic organisms.
Elsayda NafesaEl-Shamy, Ahmed Khairy
doaj +1 more source
Heritage Science, 2021 Paintings and painted surfaces are considered to be extremely complex due to their multitude of materials and thus form the basis for particularly intricate Cultural Heritage studies.
E. Palamara +6 more
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Chromatographic Techniques to Separate and Identify Bioactive Compounds in Microalgae
Frontiers in Energy Research, 2022 Microalgae are potential sources for the sustainable production of valuable chemicals including polyphenols, pigments, and ω-3 PUFAs. However, successful exploitation of these high value compounds in the food, healthcare and pharmaceutical sectors ...
Hossein Kiani +7 more
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Identification of black sturgeon caviar pigment as eumelanin
Food Chemistry, 2022 Reported herein is the purification of the pigment of black sturgeon caviar and its unambiguous identification as a typical eumelanin by means of chemical degradation coupled with electron paramagnetic resonance (EPR) evidence. HPLC and LC-MS analysis of oxidative degradation mixtures revealed the formation of pyrrole-2,3,5-tricarboxylic acid (PTCA), a
Panzella L. +6 more
openaire +4 more sources