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1. An overview of β-carotene production: Current status and future prospects

Author:
Rahul Vikram Singh; Krishika Sambyal
Source:
Food bioscience 2022 v.47 pp. 101717
ISSN:
2212-4292
Subject:
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 ...
DOI:
10.1016/j.fbio.2022.101717

2. Colors of life: a review on fungal pigments

Author:
Haritha Meruvu; Júlio César dos Santos
Source:
Critical reviews in biotechnology 2021 v.41 no.8 pp. 1153-1177
ISSN:
1549-7801
Subject:
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 ...
DOI:
10.1080/07388551.2021.1901647

3. Expanding the spalting palette: developing yellow, purple, and green pigments from Scytalidium ganodermophthorum

Author:
Patricia Vega Gutierrez; Badria Almushardi; Megan Huber; Claudia Andersen; R. C. Van Court; S. C. Robinson
Source:
International wood products journal 2021 v.12 no.1 pp. 34-39
ISSN:
2042-6453
Subject:
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 ...
DOI:
10.1080/20426445.2020.1780543
CHORUS:
10.1080/20426445.2020.1780543

4. Discovery of a novel siphonaxanthin biosynthetic precursor in Codium fragile that accumulates only by exposure to blue‐green light

Author:
Soichiro Seki; Yumiko Yamano; Naohiro Oka; Yasuhiro Kamei; Ritsuko Fujii
Source:
FEBS letters 2022 v.596 no.12 pp. 1544-1555
ISSN:
0014-5793
Subject:
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 ...
DOI:
10.1002/1873-3468.14357

5. Assessment of the orientation and conformation of pigments in protein binding sites from infrared difference spectra

Author:
Leyla Rohani; Gary Hastings
Source:
Biochimica et biophysica acta 2021 v.1862 no.4 pp. 148366
ISSN:
0005-2728
Subject:
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 ...
DOI:
10.1016/j.bbabio.2020.148366

6. Biological response of protists Haematococcus lacustris and Euglena gracilis to conductive polymer poly (3,4‐ethylenedioxythiophene) polystyrene sulfonate

Author:
J. Zhu; T. Omura; M. Wakisaka
Source:
Letters in applied microbiology 2021 v.72 no.5 pp. 619-625
ISSN:
0266-8254
Subject:
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 ...
DOI:
10.1111/lam.13459

7. Evaluation of degradation of pigments formed during garlic discoloration in different pH

Author:
Ruixuan Zhao; Bin Zhang; Jieru Sun; Zhenjia Zheng; Xuguang Qiao
Source:
Food research international 2021 v.140 pp. 109957
ISSN:
0963-9969
Subject:
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 ...
DOI:
10.1016/j.foodres.2020.109957

8. Imaging plant tissues: advances and promising clearing practices

Author:
Mathilde Hériché; Christine Arnould; Daniel Wipf; Pierre-Emmanuel Courty
Source:
Trends in plant science 2022 v.27 no.6 pp. 601-615
ISSN:
1360-1385
Subject:
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 ...
DOI:
10.1016/j.tplants.2021.12.006

9. Recent Advances in Algae-Derived Biofuels and Bioactive Compounds

Author:
Shanghuan Feng; Kang Kang; Shakirudeen Salaudeen; Ali Ahmadi; Quan Sophia He; Yulin Hu
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.3 pp. 1232-1249
ISSN:
1520-5045
Subject:
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 ...
DOI:
10.1021/acs.iecr.1c04039

10. Aggregation-Dependent Photoreactive Hemicyanine Assembly as a Photobactericide

Author:
Tian Tian; Tingjuan Qian; Xinyu Sui; Qilin Yu; Yingxin Liu; Xinfeng Liu; Yulan Chen; Yi-Xuan Wang; Wenping Hu
Source:
ACS applied materials & interfaces 2020 v.12 no.20 pp. 22552-22559
ISSN:
1944-8252
Subject:
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 ...
DOI:
10.1021/acsami.0c03894

11. Bone tools, ornaments and other unusual objects during the Middle to Upper Palaeolithic transition in Italy

Author:
Simona Arrighi; Adriana Moroni; Laura Tassoni; Francesco Boschin; Federica Badino; Eugenio Bortolini; Paolo Boscato; Jacopo Crezzini; Carla Figus; Manuela Forte; Federico Lugli; Giulia Marciani; Gregorio Oxilia; Fabio Negrino; Julien Riel-Salvatore; Matteo Romandini; Marco Peresani; Enza Elena Spinapolice; Annamaria Ronchitelli; Stefano Benazzi
Source:
Quaternary international 2020 v.551 pp. 169-187
ISSN:
1040-6182
Subject:
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 ...
DOI:
10.1016/j.quaint.2019.11.016

12. Glycogen, poly(3-hydroxybutyrate) and pigment accumulation in three Synechocystis strains when exposed to a stepwise increasing salt stress

Author:
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
Source:
Journal of applied phycology 2022 v.34 no.3 pp. 1227-1241
ISSN:
0921-8971
Subject:
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 ...
DOI:
10.1007/s10811-022-02693-3

13. Disruptions of feather carotenoid pigmentation in a subset of hybrid northern flickers (Colaptes auratus) may be linked to genetic incompatibilities

Author:
Jocelyn Hudon; Karen L. Wiebe; Riccardo Stradi
Source:
Comparative biochemistry and physiology 2021 v.251 pp. 110510
ISSN:
1096-4959
Subject:
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 ...
DOI:
10.1016/j.cbpb.2020.110510

14. B‐box proteins: Pivotal players in light‐mediated development in plants

Author:
Zhaoqing Song; Yeting Bian; Jiujie Liu; Yuting Sun; Dongqing Xu
Source:
Journal of integrative plant biology 2020 v.62 no.9 pp. 1293-1309
ISSN:
1672-9072
Subject:
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 ...
DOI:
10.1111/jipb.12935

15. Sensitivity difference between skotomorphogenesis and photomorphogenesis of plants to antibiotics: A call for research

Author:
Yuan Luo; Jie Liang; Guangming Zeng
Source:
Chemosphere 2020 v.242 pp. 125261
ISSN:
0045-6535
Subject:
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 ...
DOI:
10.1016/j.chemosphere.2019.125261

16. Simultaneous accumulation of astaxanthin and β-carotene in Chlamydomonas reinhardtii by the introduction of foreign β-carotene hydroxylase gene in response to high light stress

Author:
Kunmei Huang; Zhongliang Su; Mingyan He; Yaoyao Wu; Meiqi Wang
Source:
Biotechnology letters 2022 v.44 no.2 pp. 321-331
ISSN:
0141-5492
Subject:
pigments,   etc   ; Chlamydomonas reinhardtii; Haematococcus pluvialis; astaxanthin; biotechnology; genes; genetically modified organisms; light intensity; photosynthesis; reverse transcriptase polymerase chain reaction; spectinomycin;     Show all 11 Subjects
Abstract:
... 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 ...
DOI:
10.1007/s10529-022-03230-5

17. Printing a Wide Gamut of Saturated Structural Colors Using Binary Mixtures, With Applications in Anticounterfeiting

Author:
Mario Echeverri; Anvay Patil; Ziying Hu; Matthew D. Shawkey; Nathan C. Gianneschi; Ali Dhinojwala
Source:
ACS applied materials & interfaces 2020 v.12 no.17 pp. 19882-19889
ISSN:
1944-8252
Subject:
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 ...
DOI:
10.1021/acsami.0c01449

18. Laboratory-scale reproduction of lighting conditions for an outdoor vertical column photobioreactor: Theoretical fundamentals and operation of a programmable LED module

Author:
Rodrigo Jorge Leonardi; Manuel Vicente Ibañez; Esteban Nahuel Osella; Josué Miguel Heinrich
Source:
Algal research 2021 v.55 pp. 102227
ISSN:
2211-9264
Subject:
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 ...
DOI:
10.1016/j.algal.2021.102227

19. Green earth pigments dispersions: Water dynamics at the interfaces

Author:
Agathe Fanost; Maguy Jaber; Laurence de Viguerie; Jean-Pierre Korb; Pierre E. Levitz; Laurent J. Michot; Guillaume Mériguet; Anne-Laure Rollet
Source:
Journal of colloid and interface science 2021 v.581 pp. 644-655
ISSN:
0021-9797
Subject:
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 ...
DOI:
10.1016/j.jcis.2020.07.085

20. Food Colour Additives: A Synoptical Overview on Their Chemical Properties, Applications in Food Products, and Health Side Effects

Author:
Maria Manuela Silva; Fernando Henrique Reboredo; Fernando Cebola Lidon
Source:
Foods 2022 v.11 no.3 pp. -
ISSN:
2304-8158
Subject:
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 ...
DOI:
10.3390/foods11030379