Pigment comparability

Efforts have been made to reduce the production costs of fermentation pigments compared to costs of synthetic pigments and pigments extracted from natural... 

Introducing acidic substituents into the basic structure of a typical monoazo yellow pigment makes it possible to convert the material into a lake by salt formation. This improves the application properties of a pigment compared to its non-laked counterpart. Such pigments exhibit particularly good migration resistance and heat stability, making them useful colorants for plastics. 

Figure 23-22 Absorption spectra of chlorophylls and accessory pigments compared. Redrawn from G. and R. Govindjee,265 and from J. J. Wolken 266...

What is the effect of the amount of sample applied to the paper on the separation of the tomato pigments Compare the results on lanes 2, 3, and 4 of the paper chromatogram. 

In 102 patients with multiple myeloma, stem cell factor plus G-CSF produced more frequent injection site reactions and more frequent skin reactions (25 versus 2%), namely rash, erythema, urticaria, pruritus, and abnormal pigmentation, compared with G-CSF alone (2). These reactions occurred despite systemic prophylactic antihistamines. Other adverse effects occurred with similar frequency in the two groups of patients. 

Visual observations indicated that both endocarp and flavedo of FVCL-1 and FVCL-8 treated fruit exhibited enhanced pigmentation compared with untreated fruit, suggesting a deeper coloration caused by an increased accumulation of carotenoid pigments. Table 6. these results also indicated that the new PBRs enhanced fruit color more than did DCPTA. 

HQ 4% combined with GA 10% in a (ream containing vitamins C, E and sunscreen showed a significant decrease in pigmentation compared to sunscreen alone [49]. 

Redoximorphic features are a color pattern in a soil due to loss (depletion) or gain (concentration) of pigment compared to the matrix color. It is formed by oxidation / reduction of Fe and/or Mn coupled with their removal and translocation or a soil matrix color controlled... 

Pigments comparable with CuPc. The high standard set by CuPc has resulted in intensive research by the major dye concerns and a full palette is now available (Table 2.19). 

Improvement in weather resistance by color pigments compared to non-pigmented PE-HD [ 18]... 

One of the key features of miniemulsion droplets is their extremely high stability that prevents any exchange reaction occurring between the payloads of different droplets. This was elegantly demonstrated by the suppression of the formation of Prussian blue upon mixing of two droplets each of which contained a reactive precursor (K4[Fe(CN>6] and FeCls) to the blue pigment, compared to the formation of the complex (indicated by the formation of the bright blue color) when the droplets where formed by a micellar assembly or a conventional emulsion polymerization method. This is proposed to be very important in delivery applications (Landfester, 2006). 

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