Results 31 to 40 of about 2,632,364 (306)

Seeing red: towards an improved protocol for the identification of madder- and cochineal-based pigments by fiber optics reflectance spectroscopy (FORS)

Heritage Science, 2019
Fiber optics reflectance spectroscopy (FORS) is commonly used to non-invasively identify madder- and cochineal-based pigments on works of art, but the significant shifts sometimes observed in the position of their diagnostic absorption features can ...
Beatriz Fonseca, Catherine Schmidt Patterson, Monica Ganio, Douglas MacLennan, Karen Trentelman   +4 more
doaj   +1 more source

Hyperspectral Analysis of Pigment Identification and Abundance Inversion in the Dome of China’s Yungang Grotto 7 [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Most of the grotto temples have undergone long-term weathering and multiple repainting campaigns, so accurate identification of the composition and spatial abundance of surface pigments is an important foundation for pigment characterization and ...
J. Yan, J. Yan, S. Lyu, S. Lyu, B. Ning, L. Li, M. Hou   +6 more
doaj   +1 more source

Green Earth pigments aqueous dispersions: NMR relaxation rates dataset

Data in Brief, 2020
The data presented here are related to the research paper entitled “Green Earth pigments dispersions: water dynamics at the interfaces”. The nuclear magnetic resonance (NMR) relaxometry data are provided for various aqueous Green Earth (GE) pigments ...
Agathe Fanost, Maguy Jaber, Laurence de Viguerie, Jean-Pierre Korb, Pierre E. Levitz, Laurent J. Michot, Guillaume Mériguet, Anne-Laure Rollet   +7 more
doaj   +1 more source

Barumiki antocyjanowe u Iris germanica [Anthocyanin pigments in Iris germanica L.]

Acta Agrobotanica, 2015
Anthocyanin pigments occurring in the flowers of Iris germanica were investigated in five varieties: Rota, Wedgewood, Empress of India, Deputate Nomblot and Joanna.
J. Szczepańska, M. Solecka
doaj   +1 more source

Lacquerware Pigment Identification with Fixed and Mobile Raman Microspectrometers: A Potential Technique to Differentiate Original/Fake Artworks

Arts, 2013
(FT) Raman spectroscopy is used for the first time to identify pigments used in 19th & 20th century Japanese and Vietnamese Lacquerwares. IR spectroscopy is used to assess the Lacquer matrix.
Philippe Colomban, Diana Mancini
doaj   +1 more source

Stability and Components Identification of Monascus ruber´s pigments [PDF]

Journal of Food and Dairy Sciences, 2017
The aim of this study is to evaluate the stability of red, orange and yellow pigments produced from Monascus ruber Went AUMC5705 under the conditions of both solid state fermentation (SSF) and liquid state fermentation (LSF).
H. Abdel-Raheam, Nanis Gomah
doaj   +1 more source

Procedimentos analíticos para identificação de antocianinas presentes em extratos naturais Analytical procedures for identifying anthocyanins in natural extracts

Química Nova, 2008
Anthocyanins are among the most important plant pigments. Due to their potential benefits for human health, there is considerable interest in these natural pigments.
Paulo Henrique Março, Ronei Jesus Poppi, Ieda Spacino Scarminio   +2 more
doaj   +1 more source

Environmentally friendly textile pigments: implementation of genome mining-based approach for the identification of new anthraquinone producers.

, 2023
It is estimated that 200,000 tons of synthetic pigments are lost in the effluents of the textile industry each year. Most of these dyes escape conventional wastewater treatments, resulting in adverse effects on the environment, such as ecotoxicity,
Silvia Turroni, Elena Biagi, Marco Rossi, Simone Rampelli, Lorenzo Osti, Mauro Comes Franchini, Andrea Nicolò Dell’Acqua, Erica Locatelli, Giulio Zanaroli, Giorgia Palladino, Andrea Negroni, Rosario Carmenini, Fabiola Valli, Marco Candela   +13 more
core   +1 more source

Correlation of Visible Reflectance Spectrometry and Portable Raman Data for Red Pigment Identification

Heritage
The accurate identification of pigments is of principal relevance in the field of cultural heritage conservation and restoration practices. In this preliminary study, a first attempt to set up a procedure for accurate red pigment identification, based on
Anna M. Gueli, Rosaria Galvagno, Adriana Incardona, Eleonora Pappalardo, Giuseppe Politi, Giuseppe Paladini, Giuseppe Stella   +6 more
doaj   +1 more source

HPLC-DAD-ESI/MS Identification of Light Harvesting and Light Screening Pigments in the Lake Sediments at Edmonson Point

The Scientific World Journal, 2013
The composition of sedimentary pigments in the Antarctic lake at Edmonson Point has been investigated and compared with the aim to provide a useful analytical method for pigments separation and identification, providing reference data for future ...
Rita Giovannetti, Leila Alibabaei, Marco Zannotti, Stefano Ferraro, Laura Petetta   +4 more
doaj   +1 more source