Vitamin A Enrichment
Vitamin A Enrichment - Related Videos
12:48
PLGA Nanoparticles Formed by Single- or Double-emulsion with Vitamin E-TPGS
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Cited by 211 •
2013
We describe the production and characterization of nanoparticles and microparticles composed of poly(lactic-co-glycolic acid) using vitamin E-TPGS as an emulsifier. By varying formulation parameters such as the concentration of emulsifier, it is possible to produce nanoparticles with mean diameters ranging from 220 nm to 1.98 µm.
01:30
Vitamins
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2024
Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced in our...
01:34
Environmental Enrichment for Rodents
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2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Environmental enrichment involves objects and practices that encourage natural behaviors, improve psychological well-being, and promote better welfare in laboratory rodents. Environmental enrichment should be tailored to the...
09:30
A Protocol for Housing Mice in an Enriched Environment
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Cited by 70 •
2015
Environmental enrichment for mice requires a complex and challenging setup, as well as comprehensive husbandry and handling techniques to assure robust metabolic and anti-cancer effects in the mice. This protocol provides detailed procedures to reproduce the above mentioned effects in mice.
01:27
Environmental Enrichment in Rabbits and Pigs
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2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Importance of Environmental Enrichment Environmental enrichment is a fundamental component of laboratory animal care and welfare. It provides animals with opportunities to express species-specific behaviors, reduces stress, and...
FAQs
Solubility and dispersion determine whether the selected vitamin A compound spreads evenly through a food, feed, or biological material. Poor distribution can create regions with different nutrient concentrations, while suitable dispersion supports more consistent nutrient delivery. In formulation work, chemists therefore consider the compound’s physical behavior alongside its intended nutritional level.
Light, heat, and oxidation can promote degradation of vitamin A compounds, reducing the amount that remains available after processing or storage. These conditions are especially important because enrichment does not end when an ingredient is added. Stability assessment must examine how the chemical form performs under the material’s expected handling and storage environment.
Retinyl esters and beta-carotene represent different chemical choices for increasing vitamin A-related nutritional value. Retinyl esters provide a vitamin A form, whereas beta-carotene is a provitamin A carotenoid. Selecting between them requires attention to solubility, dispersion, sensitivity to degradation, and the intended analysis of stability, bioavailability, and nutrient delivery.
A useful comparison considers the compound selected, its distribution within the material, and its resistance to processing and storage conditions. Chemists can also examine how much of the compound remains after exposure to light or heat and whether the formulation supports the intended bioavailability. These measurements connect chemical stability with practical nutritional performance.
Development begins by selecting a suitable retinyl ester or carotenoid, then incorporating it while controlling solubility and dispersion. The resulting material is evaluated under relevant processing and storage conditions, with attention to light, heat, and oxidation. Measurements of stability and nutrient delivery help determine whether the formulation meets its intended enrichment purpose.
The approach can support the formulation of fortified foods, supplements, feed, and other biological materials. Its chemistry is relevant wherever a nutrient must remain sufficiently distributed and stable during processing or storage. Research may focus on comparing compounds, tracking degradation, and relating chemical measurements to bioavailability and the effectiveness of nutrient delivery.