reflectionmeasurementscarrotjuicehemoglobinOptischeReflektionsmessungenKarottensaftHämoglobinObjective: To increase the carotenoid concentration in skin by drinking carrot juice to generate an optical response and to determine an in vivo absorption spectrum of the carotenoids and compare it to ex vivo ...
proteins, and lipids by generating intracellular chemical intermediates such as reactive oxygen species (ROS). This type of UV radiation causes mutagenesis in eukaryotic cells, photoageing and other skin disorders2. In contrast, UV-B (315–280 nm) radiation...
b) orange c) green d) violet Carotenoids: Carotenoids are yellow, orange, or red pigments found in plants that give them color. They can be found in colored parts of plants such as in carrots, ripe-tomatoes, and in leaves when they change color for fall. Answer and...
anthocyanins are commonly found in epidermal cells in petals and in the subepidermal cells of leaves. On the other hand, carotenoids are commonly located in the plastids and vacuoles via plastid-vacuole interactions
The standard D65 illuminant and remove specular reflection mode were selected, and the samples were measured perpendicular to the UltraScan VIS lens. Each sample skin color, three different positions of the peel sample were analyzed. Six samples per group were measured to minimize the experimental ...
Skin carotenoids were measured using pressure-mediated reflection spectroscopy. Both the retinal and skin measures showed high reliability (intraclass correlations > 0.90) and stability over time. The two measures, when averaged over 5 testing sessions, were moderately but significantly correlated (r= ...
After the development of the RRS for the in vivo detection of carotenoids in human skin, the system was tested on volunteers at the CCP during a one-year study. Every day before having lunch, the volunteers placed their hands on the sensor head and the carotenoid concentration was measured ...
In the first phase, a diffuse reflectance spectroscopy-based scanner was validated for non-invasive measurements of skin carotenoids in term infants (thenar eminence) by correlation with blood carotenoids via reflection spectroscopy. In the second phase, the skin and blood carotenoids of 22 term and...
After the development of the RRS for the in vivo detection of carotenoids in human skin, the system was tested on volunteers at the CCP during a one-year study. Every day before having lunch, the volunteers placed their hands on the sensor head and the carotenoid concentration was measured ...