Results 41 to 50 of about 80,936 (302)

Pigments from Microorganisms: A Sustainable Alternative for Synthetic Food Coloring

open access: yesFermentation
Microbial pigments are gaining acceptance as a green, sustainable substitute for synthetic food pigments due to growing health issues and their adverse health impacts.
Akshay Chavan   +6 more
doaj   +1 more source

Contribution of epilithic diatoms to benthic−pelagic coupling in a temperate river [PDF]

open access: yes, 2013
Water residence time in the middle course of rivers is often too short to allow substantial phytoplankton development, and primary production is essentially provided by benthic phototrophic biofilms.
Buffan-Dubau, Evelyne   +7 more
core   +4 more sources

Isolation and Optimization of Monascus ruber OMNRC45 for Red Pigment Production and Evaluation of the Pigment as a Food Colorant

open access: yesApplied Sciences, 2020
The color of food is a critical factor influencing its general acceptance. Owing to the effects of chemical colorants on health, current research is directly aimed at producing natural and healthy food colorants from microbial sources.
Osama M. Darwesh   +4 more
doaj   +1 more source

Gut microbiota facilitates dietary heme-induced epithelial hyperproliferation by opening the mucus barrier in colon [PDF]

open access: yes, 2015
Colorectal cancer risk is associated with diets high in red meat. Heme, the pigment of red meat, induces cytotoxicity of colonic contents and elicits epithelial damage and compensatory hyperproliferation, leading to hyperplasia.
Clara Belzer   +13 more
core   +2 more sources

Pigment Production From Bacteria Isolated From Whey

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Environmental pollution and population growth necessitate more efficient production processes. Organic whey, which is a low-cost substrate for the food industry, constitutes a promising raw material with its low cost and chemical content for ...
Sude Çardak   +2 more
doaj   +1 more source

Spectral signatures of photosynthesis I: Review of Earth organisms

open access: yes, 2007
Why do plants reflect in the green and have a 'red edge' in the red, and should extrasolar photosynthesis be the same? We provide: 1) a brief review of how photosynthesis works; 2) an overview of the diversity of photosynthetic organisms, their light ...
Bebout B.M.   +13 more
core   +1 more source

Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures

open access: yes, 2018
We propose that retinal-based phototrophy arose early in the evolution of life on Earth, profoundly impacting the development of photosynthesis and creating implications for the search for life beyond our planet.
DasSarma, Shiladitya   +1 more
core   +1 more source

Violacein, an indole-derived purple-colored natural pigment produced by Janthinobacterium lividum, inhibits the growth of head and neck carcinoma cell lines both in vitro and in vivo [PDF]

open access: yes, 2015
Violacein (VIO; 3-[1,2-dihydro-5-(5-hydroxy-1H-indol-3-yl)-2-oxo-3H-pyrrol-3-ylidene]-1,3-dihydro-2H-indol-2-one), an indole-derived purple-colored pigment, produced by a limited number of Gram-negative bacteria species, including Chromobacterium ...
Bei, Roberto   +12 more
core   +1 more source

Physicochemical Properties and Antibiosis Activity of the Pink Pigment of Erwinia persicina Cp2

open access: yesAgriculture, 2022
The control and management of fungal diseases is a worldwide problem. A variety of microbial pigments have excellent antibacterial effects, and naturally occurring bacterial pigments may help in tackling fungal diseases.
Yujuan Zhang   +7 more
doaj   +1 more source

The relationship between epilithic biofilm stability and its associated meiofauna under two patterns of flood disturbance [PDF]

open access: yes, 2012
Habitat stability is an important driver of ecological community composition and development. River epilithic biofilms are particularly unstable habitats for the establishment of benthic communities because they are regularly disturbed by floods. Our aim
Boulêtreau, Stéphanie   +9 more
core   +4 more sources

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