Results 21 to 30 of about 731,107 (404)

Pigments Content (Chlorophylls, Fucoxanthin and Phycobiliproteins) of Different Commercial Dried Algae

open access: yesSeparations, 2020
Algae are a complex, polyphyletic group of organisms, affordable and naturally rich in nutrients, but also valuable sources of structurally diverse bioactive substances such as natural pigments.
Catarina Osório   +6 more
semanticscholar   +1 more source

Blue light regenerates functional visual pigments in mammals through a retinyl-phospholipid intermediate. [PDF]

open access: yes, 2017
The light absorbing chromophore in opsin visual pigments is the protonated Schiff base of 11-cis-retinaldehyde (11cRAL). Absorption of a photon isomerizes 11cRAL to all-trans-retinaldehyde (atRAL), briefly activating the pigment before it dissociates ...
Fain, Gordon L   +6 more
core   +1 more source

Fungi as a Potential Source of Pigments: Harnessing Filamentous Fungi

open access: yesFrontiers in Chemistry, 2020
The growing concern over the harmful effects of synthetic colorants on both the consumer and the environment has raised a strong interest in natural coloring alternatives.
Rishu Kalra, X. Conlan, Mayurika Goel
semanticscholar   +1 more source

Structure and Properties of Dyes and Pigments

open access: yesDyes and pigments, 2021
Colour is one of the elements of nature that makes human life more aesthetic and fascinating in the world. Plants, animals, and minerals have been used as primary sources for colourants, dyes or pigments since ancient times.
Ajay Kumar   +4 more
semanticscholar   +1 more source

Preparation of Green-Emissive Zinc Oxide Composites Using Natural Betacyanin Pigment Isolated from Red Dragon Fruit

open access: yesIndonesian Journal of Chemistry, 2020
In this work, we reported the synthesis of green-emissive composite materials of zinc oxide (ZnO) and isolated betacyanin pigment from red dragon fruit (RDF) extract utilizing organic linkers, i.e.
Yehezkiel Steven Kurniawan   +2 more
doaj   +1 more source

Micro-fading spectrometry: investigating the wavelength specificity of fading [PDF]

open access: yes, 2015
A modified microfading spectrometer incorporating a linear variable filter is used to investigate the wavelength dependence of fading of traditional watercolour pigments, dosimeters and fading standards at a higher spectral resolution and/or sampling ...
AL Dupont   +17 more
core   +1 more source

Deepening inside the pictorial layers of Etruscan sarcophagus of Hasti Afunei: An innovative micro-sampling technique for Raman/SERS analyses [PDF]

open access: yes, 2019
The Hasti Afunei sarcophagus is a large Etruscan urn, made up of two chalky alabaster monoliths. Dated from the last quarter of the third century BC, it was found in 1826 in the small town of Chiusi (Tuscany- Il Colle place) by a landowner, Pietro Bonci ...
Bianco, Armandodoriano   +7 more
core   +1 more source

Utilization dyeing process of coffea pigment as superhydrophobic coating on fabric application [PDF]

open access: yes, 2020
Synthetic pigments and dyes was frequently used for textile products in order to fulfill the customers demand because it is less expensive and high durability compared to natural pigments or dyes. Therefore, the contribution of synthetic dyes waste water
Mahmood, Salwa   +3 more
core  

Microbial Pigments in the Food Industry—Challenges and the Way Forward

open access: yesFrontiers in Nutrition, 2019
Developing new colors for the food industry is challenging, as colorants need to be compatible with a food flavors, safety, and nutritional value, and which ultimately have a minimal impact on the price of the product.
Tanuka Sen, C. Barrow, S. Deshmukh
semanticscholar   +1 more source

Investigation of dyeing based on pandanus amaryllifolius for superhydrophobic coating in cotton-polyester blended in textile application [PDF]

open access: yes, 2020
Natural dyes are derived from natural resources. Colouring materials obtained from natural resources of plant, animal, mineral, and microbial origins were used for colouration of various textile materials.
Chew, Gin Yan   +3 more
core  

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