Study and analysis for the frescoes in caves of ancient China have shown that red pigments are mainly cinnabar, red iron oxide, iron-containing clay, red lead,red orpiment, zinc iron gahnite (ZuFe_2O_4), cuprite;
This paper introduced the synthetic method of red pigmentary polyletherimide,the general properties of poly(etherimide)s and the optical properties of poly(ether imide)s was discussed.
In the upper horizons of other automorphic soils, red pigment is produced rather by Fe-containing hydroxides (feroxyhyte δFeOOH and Fe-vernadite Fe-δMnO2) than by hematite αFe2O3.
The red pigment cinnabar (HgS) is easily media used.
The red pigment cinnabar (HgS) is easily detected, whereas in the case of organic components positive results are only found where the matrices are resistant to archaeological environmental conditions.
Growth kinetics and red pigment production of Monascus purpureus CCT 3802 was studied.
Also, yeast extract probably yielded a higher proportion of red pigment associated with the cell, relative to the synthetic medium.
It was demonstrated that subcultivated callus tissue contained red pigments of flavonoid nature.
Under stress cultivation conditions, yellow pigments were formed and the content of red pigments increased.
Yellow, orange, and red pigments are found to have absorption spectra typical of C40-carotenoids.
The chromophore composition of all known phycoerythrins of cyanobacteria and red algae were compared, and on the basis of this comparative study designations C1- to C5-phycoerythrin were proposed for cyanobacterial red pigments.
The formation of soluble Monascus red pigments is strongly positively and negatively regulated by different amino acids.
'Fife', 'Hard Red Calcutta', and 'Turkey Red' accounted for 18%, 13%, and 8%, respectively, of the hard spring wheat origins.
Surface active properties, such as surface tension, interfacial tension, emulsifiability, dispersibility and foaming power of sulfonated isoricinoleic acid (SIRA), and sulfonated castor oil or turkey red oil (TRO) were studied and compared.
The tetradecyl ricinoleate shows the best surface-active behavior and seems to be much better than that of sulfonated castor oil commonly known as "Turkey Red Oil".
Insulin binding to turkey red blood cells ex posed to insulin.
Time course and ofthe insulin-induced alteration in binding with turkey red blood cells.
Study and analysis for the frescoes in caves of ancient China have shown that red pigments are mainly cinnabar, red iron oxide, iron-containing clay, red lead,red orpiment, zinc iron gahnite (ZuFe_2O_4), cuprite; blue ones, ultramarine, azurite (2CUCO_3·Cu(OH)_2), dark blue (an amorphous arsenide of Fe, Co, Ni), indigo; brown ones, basic copper chloride, malachite, basic copper sulphate, copper arsenate acetate; yellow ones, ochre yellow, orpimeat (As_2S_3), garcinia and auramine plant dyesiuff. The article...
Study and analysis for the frescoes in caves of ancient China have shown that red pigments are mainly cinnabar, red iron oxide, iron-containing clay, red lead,red orpiment, zinc iron gahnite (ZuFe_2O_4), cuprite; blue ones, ultramarine, azurite (2CUCO_3·Cu(OH)_2), dark blue (an amorphous arsenide of Fe, Co, Ni), indigo; brown ones, basic copper chloride, malachite, basic copper sulphate, copper arsenate acetate; yellow ones, ochre yellow, orpimeat (As_2S_3), garcinia and auramine plant dyesiuff. The article also gave the types of golden, silvery, brown and black pigments used in caves, temples and palaces.
Base4 on the classification of pigments ,and combined with the principle of crystal chemistry and solid solutions ,the composition and the type of structure of red pigments are studied in this paper. The type of structure of two unknown red pigments are studied and their composition are then calculated by XRD method. The method described in this paper is meaningful to research on phase composition of pigments.
Microbial strains were isolated from 51 typical color changed samples ofmural in 6 grottos of Dunhuang Mogao Gretto. After identification, it is proved thatbelong to 6 genera of bacteria and 5 genera of mould. Bacillus, Alcaligenes andPenicillium were dominant species in all of them. In the imutative experiment it isfound that Cladosporium sp., A. niger and two strains of bacteria have a great effecton the color change of red pigment of mural and aging of sizing agent.