Results 31 to 40 of about 684,228 (281)

Immunological efficiency of microbial melanin on bacterial pathogenicity. [PDF]

open access: yesEgyptian Journal of Cancer and Biomedical Research, 2020
In our present study, the immunological efficiency of brown Mel1 extracted from Streptomyces longisporoflavus NR043926 and black Mel2 extracted from Aspergillus niger MT355517 on bacterial pathogenicity was investigated.
Nanis Allam   +2 more
doaj   +1 more source

Comparing productivity and tolerance of melanin-producing Streptomyces longisporoflavus and Aspergillus niger under biosorption capacity [PDF]

open access: yesEgyptian Journal of Cancer and Biomedical Research, 2021
Background: Melanin (Mel) is a naturally occurring pigment made by some microorganisms. Streptomyces sp and Aspergillus niger are capable of producing a high quantity of brown (Mel1) - black (Mel2) intercellular Mel pigments.
Eman Abd El-Zaher   +2 more
doaj   +1 more source

Early 20th C Russian painting? Raman identification of modern pigments on a pastel supposedly Painted by the renowned artist Natalia Goncharova [PDF]

open access: yes, 2014
A pastel painting considered to have been painted by renowned Russian artist Natalia Goncharova in c. 1913 has been shown by Raman microscopy of the pigments to have been painted after 1952, with the identification of dioxazine violet.
Robin J. H. Clark   +5 more
core   +1 more source

Microbial Pigments-A Short Review

open access: yesIOSR Journal of Environmental Science, Toxicology and Food Technology, 2016
Color is the main feature of any food item as it enhances the appeal and acceptability of food. In the recent years, coloring of food with pigments produced from natural sources is of worldwide interest and is gaining importance. Several types of dyes are available in the market as colouring agents to food commodities but biocolorants are now gaining ...
Dr. D. Sarvamangala, S.S.V. Aparna
openaire   +1 more source

Autogenic versus environmental control during development of river biofilm [PDF]

open access: yes, 2009
In the natural environment, microbial community structure of river biofilm is controlled by biotic and abiotic factors. This study explored the capacity to manipulate the structure of microbial communities by modifying environmental conditions during the
Émilie Lyautey   +7 more
core   +1 more source

Caspase mediated cytotoxicity of a yellow pigment produced by Exiguobacterium alkaliphilum on human cancer cell lines [PDF]

open access: yesJournal of Pharmacy & Pharmacognosy Research, 2020
Context: Investigation of microbial diversity for the identification of novel bioactive compounds or therapeutics is a more potential and incessant ongoing process for drug development research.
Bharath Gajaraj, Varalakshmi Nadumane
doaj  

Fungal Pigments: Their Diversity, Chemistry, Food and Non-Food Applications

open access: yesApplied Microbiology, 2023
Colorants have many applications in food, cosmetics, pharmaceutics, textile, paints, plastics, paper, ink and photographic industries. Colorants are classified according to their solubility into dyes and pigments.
Waill Elkhateeb, Ghoson Daba
doaj   +1 more source

Valorization of novel bifunctional waterborne coatings with UV irradiation resistance and antimicrobial activity

open access: yesScientific Reports
This research aimed to create bifunctional acrylic waterborne coatings capable of absorbing UV radiation and resisting microbial growth. The compound 4-[2(3-acetylphenyl) diazenyl]-3,5-dimethylphenol (ADD) was incorporated into the waterborne acrylic ...
Walaa M. Abd El-Gawad   +2 more
doaj   +1 more source

Identification and characterization of a gene conferring stress resistance in Escherichia coli and cyanobacteria

open access: yesFEBS Open Bio, EarlyView.
Functional screening identified PcSyn14890, a cyanobacteria‐specific protein that enhances growth and stress resistance in E. coli and Synechocystis PCC6803. Although we expected it to function as a molecular chaperone, it was unable to protect against thermal aggregation of GAPDH.
Akiyo Yamada   +7 more
wiley   +1 more source

Biosynthesis and Genetic Tuning of Guanine Crystals via Metabolic Engineering of Yeast

open access: yesAngewandte Chemie, EarlyView.
We demonstrate how yeast cells can be harnessed as cellular factories for the synthesis of optically functional guanine crystals, where genetic editing is used to tune crystal size, order and optical properties. This demonstrates a powerful new biosynthetic approach for the development of sustainable and biocompatible optical pigments, which utilizes ...
Jerome N. Janssen   +11 more
wiley   +2 more sources

Home - About - Disclaimer - Privacy