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pigments, etc ; food industry; foods; methodology; physical properties; production costs; Show all 6 Subjects
Abstract:
... β-carotene is being used in the food industry as an orange-red pigment for making various food products due to its valuable physical and biological properties. The use of naturally produced β-carotene has many health benefits rather than the majorly used synthetic production method. Therefore, the use of microbial production for β-carotene synthesis can be a promising future for the industries due ...
fungal pigments, etc ; biotechnology; carotenoids; cosmetics; drugs; fungi; quinones; Show all 7 Subjects
Abstract:
... Colorants find social and commercial applications in cosmetics, food, pharmaceuticals, textiles, and other industrial sectors. Among the available options, chemically synthesized colorants are popular due to their low-cost and flexible production modes, but health and environmental concerns have encouraged the valorization of biopigments that are natural and ecofriendly. Among natural biopigment p ...
fungal pigments, etc ; Scytalidium; color; pathogens; wood; wood spalting; Show all 6 Subjects
Abstract:
... The use of wood coloured by fungi, or ‘spalted’ wood, stretches back to the Renaissance. Most of this work was restricted to shades of blue-green, brown, white, and black zone lines. Modern spalting has added in shades of red and blue. The current colour palette of spalting fungi has the potential to be expanded through the use of Scytalidium ganodermophthorum, a fungal pathogen and suspected soft ...
pigments, etc ; Codium fragile; acclimation; biosynthesis; carotenoids; chemical structure; light intensity; photosynthesis; wavelengths; Show all 9 Subjects
Abstract:
... Photosynthetic organisms adapt to a variety of light conditions. Codium fragile, a macrosiphonous green alga, binds a unique carbonyl carotenoid, siphonaxanthin, to its major photosynthetic light‐harvesting complexes, allowing it to utilize dim blue‐green light for photosynthesis. Here, we describe the absolute chemical structure of a novel siphonaxanthin biosynthetic precursor, 19‐deoxysiphonaxan ...
pigments, etc ; binding sites; frequency; hydrogen bonding; naphthoquinones; photosystem I; phylloquinone; protein binding; spectroscopy; tail; Show all 10 Subjects
Abstract:
... Time resolved FTIR difference spectroscopy (DS) has been used to study photosystem I (PSI) with the disubstituted 1,4-naphthoquinones acequinocyl (AcQ) and lapachol (Lpc) incorporated into the A₁ binding site. AcQ is a 2-acetoxy-3-dodecyl-1,4-naphthoquinone, Lpc is a 2-hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthoquinone. To assess whether the experimental spectra are specific to different orientatio ...
pigments, etc ; Euglena gracilis; Haematococcus; astaxanthin; cell growth; chlorophyll; electrochemistry; microalgae; microbiology; polystyrenes; protists; sulfonates; Show all 12 Subjects
Abstract:
... Improving the growth and pigment accumulation of microalgae by electrochemical approaches was considered a novel and promising method. In this research, we investigated the effect of conductive polymer poly (3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) dispersible in water on growth and pigment accumulation of Haematococcus lacustris and Euglena gracilis. The results revealed that ...
pigments, etc ; Fourier transform infrared spectroscopy; absorption; degradation; discoloration; food research; garlic; pH; principal component analysis; Show all 9 Subjects
Abstract:
... The specific chemical bond changes of green pigment formed in garlic discoloration were investigated in our study. Multiple analysis methods were used in the degradation of pigment, including ultraviolet–visible (UV–Vis) spectrophotometry, attenuated total reflection Fourier transform infrared (ATR-FTIR) and Fourier transform infrared near infrared (FT-NIR). Green pigments were treated at 40 °C fo ...
pigments, etc ; animals; application methods; digital images; light microscopes; methodology; plant development; plant organs; plant tissues; planting; Show all 10 Subjects
Abstract:
... The study of the organ structure of plants and understanding their physiological complexity requires 3D imaging with subcellular resolution. Most plant organs are highly opaque to light, and their study under optical sectioning microscopes is therefore difficult. In animals, many protocols have been developed to make organs transparent to light using clearing protocols (CPs). By contrast, clearing ...
pigments, etc ; algae; biofuels; biorefining; carbon; climate change; energy; life cycle assessment; liquids; market value; neutralization; process design; Show all 12 Subjects
Abstract:
... Owing to the declining reserve of fossil resources as well as more concerns on climate change, and essential energy security, and especially the broad consensus on carbon neutralization, it is significantly critical to develop renewable and sustainable energy and chemicals. Algae as alternative resources can be applied to produce biofuels and biochemicals. Among them, algae-derived natural pigment ...
pigments, etc ; dyes; light; photocatalysts; photochemotherapy; photosensitizing agents; photosynthesis; Show all 7 Subjects
Abstract:
... Organic materials that show substantial reactivity under visible light have received considerable attention due to their wide applications in chemical and biological systems. Hemicyanine pigments possess a strong intramolecular donor–acceptor structure and thereby display intense absorption in the visible spectral region. However, most excitons are consumed via the twisted intramolecular charge-tr ...
pigments, etc ; Gastropoda; archaeology; human behavior; humans; manufacturing; Italy; Show all 7 Subjects
Abstract:
... The arrival of Modern Humans (MHs) in Europe between 50 ka and 39 ka coincides with significant changes in human behaviour, notably regarding the production of tools, the exploitation of resources and the systematic use of ornaments and colouring substances. The emergence of the so-called modern behaviour is usually associated with MHs, although claims of symbolic thinking in non-MH groups have be ...
K. Meixner; C. Daffert; D. Dalnodar; K. Mrázová; K. Hrubanová; V. Krzyzanek; J. Nebesarova; O. Samek; Z. Šedrlová; E. Slaninova; P. Sedláček; S. Obruča; I. Fritz
pigments, etc ; Synechocystis; algology; biomass production; brackish water; energy; glycogen; industry; metabolism; salinity; salt stress; salt tolerance; stress tolerance; Show all 13 Subjects
Abstract:
... The cyanobacterial genus Synechocystis is of particular interest to science and industry because of its efficient phototrophic metabolism, its accumulation of the polymer poly(3-hydroxybutyrate) (PHB) and its ability to withstand or adapt to adverse growing conditions. One such condition is the increased salinity that can be caused by recycled or brackish water used in cultivation. While overall r ...
pigments, etc ; Colaptes auratus; alleles; beta-cryptoxanthin; birds; color; feathers; hybridization; hybrids; hydroxylation; loci; oxidation; phenotype; pigmentation; North America; Show all 15 Subjects
Abstract:
... Hybridization can bring in single individuals alleles that were never designed to work together, which can result in unexpected or transgressive phenotypes. The Yellow-shafted (auratus group) and Red-shafted (cafer group) subspecies groups of the Northern Flicker (Colaptes auratus) differ conspicuously in the coloration of their flight feathers, but hybridize freely where their ranges overlap in w ...
pigments, etc ; photomorphogenesis; plant growth control; signal transduction; transcription (genetics); Show all 5 Subjects
Abstract:
... Light signals mediate a number of physiological and developmental processes in plants, such as flowering, photomorphogenesis, and pigment accumulation. Emerging evidence has revealed that a group of B‐box proteins (BBXs) function as central players in these light‐mediated developmental processes. B‐box proteins are a class of zinc‐coordinated transcription factors or regulators that not only direc ...
pigments, etc ; antibiotic resistance; color; cotyledons; photomorphogenesis; plant establishment; tetracycline; Show all 7 Subjects
Abstract:
... Seedling establishment consists of the former stage (i.e. skotomorphogenesis) and the latter stage (i.e. photomorphogenesis). Due to specific developmental processes in plants, the two stages may have different sensitivities to antibiotics. Tetracycline (TC), for example, is a major-use antibiotic. Radicle length, the relatively sensitive endpoint in plant skotomorphogenesis, is less sensitive tha ...
... Carotenoids are important photosynthetic pigments with many physiological functions, nutritional properties and high commercial value. β-carotene hydroxylase is one of the key enzymes in the carotenoid synthesis pathway of Chlamydomonas reinhardtii for the conversion of β-carotene to astaxanthin. The vector p64DZ containing the β-carotene hydroxylase gene crtZ from Haematococcus pluvialis was tran ...
pigments, etc ; coatings; colloids; color; cosmetics; metals; nanomaterials; printing inks; toxicity; Show all 9 Subjects
Abstract:
... Use of colloidal suspensions to generate structural colors has the potential to reduce the use of toxic metals or organic pigments in inkjet printing, coatings, cosmetics, and other applications, and is a promising avenue to create large-scale nanostructures that produce long-lasting colors. However, expanded use of structural colors requires a reduction in coffee-ring effects during printing, whi ...
pigments, etc ; algae culture; light emitting diodes; lighting; microalgae; photobioreactors; photons; photoperiod; photosynthetically active radiation; phytomass; radiant energy; radiative transfer; solar radiation; Show all 13 Subjects
Abstract:
... The development of tools aimed to predict the productivity of photobioreactors (PBRs) implies immense efforts in the Algae Biotechnology field. Mainly, bubble column systems are widely used for microalgae cultivation. Here, we sought to present a methodology to reproduce the solar lighting conditions of a vertical bubble column reactor located in Santa Fe, Argentina, utilising a commercial laborat ...
pigments, etc ; dispersions; iron; minerals; models; nuclear magnetic resonance spectroscopy; surface area; Show all 7 Subjects
Abstract:
... The objective is to elucidate the multiscale dynamics of water within natural mixtures of minerals, green earth pigments that are mainly composed of phyllosilicates containing large amount of iron. In particular, the interaction of water with the different kinds of surfaces has to be probed. One issue is to examine the influence of surface type, basal or edge, on the dispersion quality.The study w ...
pigments, etc ; adverse effects; color; consumer acceptance; food acceptability; food colorants; food coloring; food processing; foods; health effects assessments; hypersensitivity; physicochemical properties; toxicity; Show all 13 Subjects
Abstract:
... Colour is one of the most relevant organoleptic attributes that directly affects consumers’ acceptance and food selection. However, as food colouring pigments are generally unstable and become modified during processing, in order to maintain or restore product colour uniformity, colourants are added to food products around the world. In this context, although they are still widely used, synthetic ...