scholarly journals Use of Nitrite-Embedded Packaging Film for Color Stability of Alternatively-Cured, Fully Cooked Bologna

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
James S. Dickson ◽  
Joseph G. Sebranek ◽  
Michael S. Cropp ◽  
Rodrigo Tarté
Keyword(s):  
Color Stability ◽  
Packaging Film ◽  
Fully Cooked

scholarly journals 71 Impact of myoglobin oxygenation state at freezing on color stability of frozen and thawed beef

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 44-44
Author(s):  
Morgan Henriott ◽  
Felipe Ribeiro ◽  
Kellen Hart ◽  
Nicolas Herrera ◽  
Nicolas Bland ◽  
...  
Keyword(s):  
Frozen Storage ◽  
Color Stability ◽  
Color Appearance ◽  
Packaging Film ◽  
Red Color ◽  
Retail Display ◽  
Purple Color ◽  
Brown Color

Abstract Myoglobin, when oxygenated, is bright red. The deoxygenated form (purple color) is unstable and can be oxidized to metmyoglobin (brown color). This research was conducted to determine if meat frozen in the oxygenated state could retain bright red color during frozen storage, and after thawing, during retail display. Steaks from 18 USDA Choice strip loins were randomly assigned to a myoglobin state [deoxymyoglobin (DeOxy; immediately packaged), low oxygenation (LoOxy; oxygenated for 30 minutes), and high oxygenation (HiOxy; packaged for 24 h in 80% O2)], frozen storage packaging method (vacuum packaged in oxygen permeable or impermeable film), and retail display after two months of frozen storage [0 d (frozen) and 1–7 d (thawed)]. Following storage, frozen steaks were analyzed for objective color (L*, a*, b*), subjective discoloration, and percent oxymyoglobin (via spectrometer). After thawing, steaks were evaluated throughout 7 d of retail display in oxygen-permeable film. For frozen steaks, there were no differences in discoloration (P>.05). The HiOxy steaks retained the highest percentage oxymyoglobin and highest (reddest) a* values after storage, regardless of packaging film. The lowest percent oxymyoglobin (PPPPP < .05). These data suggest that steaks frozen for two months in the high oxygenation state retain superior color appearance while frozen and during the first part of retail display. It is unknown if this advantage would be retained during longer frozen storage.

Depletion of coating color components in the blade coating process circulation

TAPPI Journal ◽  
2011 ◽  
Vol 10 (9) ◽  
pp. 17-23 ◽  
Author(s):  
ANNE RUTANEN ◽  
MARTTI TOIVAKKA
Keyword(s):  
Fine Particles ◽  
Particle Density ◽  
Stable Process ◽  
Size Fraction ◽  
Color Stability ◽  
Strong Interactions ◽  
Coating Process ◽  
Size Segregation ◽  
Coating Color ◽  
Average Size

Coating color stability, as defined by changes in its solid particle fraction, is important for runnability, quality, and costs of a paper coating operation. This study sought to determine whether the size or density of particles is important in size segregation in a pigment coating process. We used a laboratory coater to study changes in coating color composition during coating operations. The results suggest that size segregation occurs for high and low density particles. Regardless of the particle density, the fine particle size fraction (<0.2 μm) was the most prone for depletion, causing an increase in the average size of the particles. Strong interactions between the fine particles and other components also were associated with a low depletion tendency of fine particles. A stable process and improved efficiency of fine particles and binders can be achieved by controlling the depletion of fine particles.

Assessment of Color Stability of Treated Leathers with Silicone Oil and Polyethylene Glycol

2014 ◽  
Vol 1 (1) ◽  
pp. 24-34
Author(s):  
Alireza K. ◽  
Hossein Ahmadi ◽  
Mohsen Mohammadi
Keyword(s):  
Ascorbic Acid ◽  
Polyethylene Glycol ◽  
Treatment Process ◽  
Color Change ◽  
Silicone Oil ◽  
Accelerated Aging ◽  
Color Stability ◽  
Antioxidant Additive ◽  
Before And After ◽  
Aesthetic Values

Lubricants and leather dressings are the most common treatments of dry and water logged historical leathers. Color change has a great importance during the time and treatment process, due to visual and aesthetic values of historic leather relics. Polyethylene glycol (PEG) and silicone oil (SiO) are frequently used leather dressings in the conservation procedures. Therefore, color stability of treated leathers with PEG and SiO were investigated before and after heat accelerated aging. Moreover, application of ascorbic acid was evaluated as an antioxidant additive for PEG (PEG+AA).Color change after treatment and aging were studied by colorimetry technique in the CIE *L*a*b system. Results indicated to severe color alteration in PEG treated and aged leathers with or without ascorbic acid. Whereas, SiO treated samples showed better stability and minimum color shift after aging. Silicone oil was characterized as the best dressing for historical leathers with compared to PEG and PEG+AA, due to its high stability and aesthetical properties.

Assessment of the effects of staining solutions, carbamide peroxide, and mouthwashes on color stability of composite resin

2014 ◽  
Vol 1 (2) ◽  
pp. 36-41
Author(s):  
Erica Crastechini ◽  
Paula de Siqueira Barbosa ◽  
Heleine Maria Chagas Rego ◽  
Priscila Holleben ◽  
Carlos Rocha Gomes Torres ◽  
...  
Keyword(s):  
Composite Resin ◽  
Color Stability ◽  
Carbamide Peroxide
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