Results 41 to 50 of about 59,199 (166)

Cyanobacterial UV Pigments Evolved to Optimize Photon Dissipation Rather than Photoprotection

Biophysica
An ancient repertoire of ultraviolet (UV)-absorbing pigments which survive today in the phylogenetically oldest extant photosynthetic organisms, the cyanobacteria, point to a direction in evolutionary adaptation of the pigments and their associated biota;
Aleksandar Simeonov, Karo Michaelian
doaj   +1 more source

Biotechnological production of natural pigments for textile dyeing

Frontiers in Microbiology
Global markets, including the pigments sector, have been significantly influenced by the adoption of novel circular bioeconomy policies and increasing concerns about sustainable practices.
Bruna Basto, Nuno R. da Silva, Nuno R. da Silva, José A. Teixeira, José A. Teixeira, Sara C. Silvério, Sara C. Silvério   +6 more
doaj   +1 more source

When Black and White make Green: the Surprising Interplay of Structure and Pigments

CHIMIA, 2019
: The natural world is teeming with color, which originates either from the wavelength-dependent absorp- tion of light by pigments or from scattering from nanoscale structures, or both.
Tianqi Sai, Bodo D. Wilts, Alba Sicher, Ullrich Steiner, Frank Scheffold, Eric R. Dufresne   +5 more
doaj   +1 more source

Production, biological characterization, and applications of natural pigments from filamentous fungi [PDF]

Brazilian Journal of Biology
Natural dyes are gaining prominence as safer, bioactive alternatives to synthetic colorants, with microbial production offering efficient and cost-effective methods.
A. A. Alyami, A. H. Alabdalall, H. Chakroun, S. A. Aldakeel, A. M. Albarrag, E. Kotb, F. Al-Zahrani   +6 more
doaj   +1 more source

Influence of biologicals on photosynthetic pigments in wheat leaves

Abstract book of the 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology" PLAMIC2020, 2020
Multifunctional biological products based on strains of microorganisms that are antagonists of pathogens and plant disease resistance activators - chitosan and its derivatives increase the content of chlorophyll α and b in flag leaves of wheat, the number and weight of grains in the ear, potential yield, and also reduce the development of yellow rust ...
I. I. Novikova, E. V. Popova, L. E. Kolesnikov, Yu. R. Kolesnikova   +3 more
openaire   +1 more source

Cultivation conditions for pigment production by Chromobacterium violaceum [PDF]

Biotemas, 2006
Chromobacterium violaceum is a beta proteobacterium, gram-negative, facultative anaerobe, found in soil, riverbanks and waters of tropical and subtropical regions all around the world.
Regina Vasconcellos Antônio, Rozangela Curi Pedrosa, Luismar Marques Porto, Margot Érika Caris, Ana Kelly Pitlovanciv   +4 more
doaj  

Bioactivities related to pigments content of Sargassum sp. Collected from Jeddah coast, Saudi Arabia, Red Sea

Egyptian Journal of Aquatic Research
The study highlights the diverse bioactive potential of the brown alga Sargassum sp., collected from the Jeddah coast in Saudi Arabia. The acetone extract of Sargassum sp was comprehensively analyzed for its pigment composition and biological activities.
Bandar A. Al-Mur, Waleed A. Alsiary
doaj   +1 more source

Study of Biological Pigments by Single Specimen Derivative Spectrophotometry

Biophysical Journal, 1970
The single specimen derivative (SSD) method provides an absolute absorption spectrum of a substance in the absence of a suitable reference. Both a reference and a measuring monochromatic beam pass through a single sample, and the specimen itself acts as its own reference. The two monochromatic beams maintain a fixed wavelength difference upon scanning,
openaire   +2 more sources

Research Progress on Bioactive Substances of Beets and Their Functions

Molecules
As a globally cultivated and economic crop, beets are particularly important in the cane sugar and feed industries. Beet pigments are among the most important natural pigments, while various chemical components in beets display beneficial biological ...
Chun Bian, Lanyang Ji, Wei Xu, Shirong Dong, Nan Pan   +4 more
doaj   +1 more source

Pigments of higher fungi - a review

Czech Journal of Food Sciences, 2011
This review surveys the literature dealing with the structure of pigments produced by fungi of the phylum Basidiomycota and also covers their significant colourless precursors that are arranged according to their biochemical origin to the shikimate ...
Jan VELÍŠEK, Karel CEJPEK
doaj   +1 more source