Company logo
CAROPHYLL® Yellow 10%

CAROPHYLL® Yellow 10%

CAROPHYLL® yellow 10% are free-flowing, granulated carotenoid products. They consist of small beadlets in which the carotenoid is finely distributed in a starch-encapsulated plant and carbohydrate matrix to which antioxidants have been added making CAROPHYLL® animal-free products. The special manufacturing process, known as 'spraydried coating', protects the carotenoids against oxidation and gives them high stability, optimal distribution, outstanding mixing properties and very good absorption characteristics.
Product Resources

Knowde Enhanced TDS

Expand All


Identification & Functionality


Features & Benefits

Animal Feed & Nutrition Features
  • Antioxidant activities
  • Cell signaling and transcription factor regulation
  • Promotion of cell differentiation
  • Regulation of cell proliferation
  • Regulation of intracellular communication via gap junctions
  • Regulation of cellular levels of detoxifying enzymes
  • Enhancement of immune function
  • Natural colorants for birds, reptiles, amphibians, fish and various invertebrates

Applications & Uses

Recommended levels

CAROPHYLL® yellow and CAROPHYLL® red for yolk pigmentation according to the target DSM yolk color fan score

DSM CAROPHYLL Yellow 10% Recommended levels


Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Fineness through No. 20100%-
Fineness through No. 40min. 90%-
Fineness through No. 100max. 20%-
Min Content10% Apo-ester--
Physcial Form
Granulated Free-flowing Powder

Technical Details & Test Data

Factors Affecting Egg Yolk Pigmenting Efficiency

The egg yolk pigmenting efficiency of carotenoids is determined by two main factors: the deposition of the pigment in the egg yolk and its color (wavelength).

Deposition in egg yolk

Deposition of dietary carotenoids in the egg yolk depends on the individual carotenoid molecule (Figure 1). As the content of carotenoids in the feed increases, their concentration in the egg yolk rises in direct proportion.

DSM CAROPHYLL Yellow 10% Factors Affecting Egg Yolk Pigmenting Efficiency - 1

The color of carotenoids

The wavelengths of the colors of the carotenoids used for egg yolk pigmentation fall between 400 nm and 600 nm within the visible range of the color spectrum. To the human eye, such compounds are yellow to red in color. Lutein, zeaxanthin and apo-ester are yellow carotenoids (wavelength from 445 to 450 nm), whereas canthaxanthin is a red carotenoid (wavelength from 465 to 470 nm).

DSM CAROPHYLL Yellow 10% Factors Affecting Egg Yolk Pigmenting Efficiency - 2

The Principle of Egg Yolk Pigmentation

There are two components of egg yolk pigmentation. The first (referred to as the saturation phase) involves the deposition of yellow carotenoids to create a yellow base
corresponding to a DSM Yolk Color Fan score around 7. Such a yellow base is very important for good saturation of the final color. Once the yellow base is established, the
addition of the red carotenoid canthaxanthin (CAROPHYLL® red) changes the color hue to a more orange-red color (the second component, or color phase). The dose-related color response to red carotenoids is higher than the response to yellow carotenoids, and the combination of yellow and red carotenoids is therefore more cost effective for egg yolk pigmentation.

Figure 3 shows this principle.

DSM CAROPHYLL Yellow 10% The Principle of Egg Yolk Pigmentation - 1

Regarding the relative pigmenting efficiencies of the yellow carotenoids, apo-ester (CAROPHYLL® yellow) is more efficient than lutein and zeaxanthin, the main carotenoids in feedstuffs. The very high deposition rate of apo-ester (CAROPHYLL® yellow) makes it the most suitable yellow carotenoid for the saturation phase. Table 1 below shows the relative pigmenting efficiency of yellow carotenoids (based on deposition rates).

DSM CAROPHYLL Yellow 10% The Principle of Egg Yolk Pigmentation - 2

Least Cost Formulation

An example of settings for least cost formulation:
To obtain a DSM-YCF score of 13, you need 10.5 ppm of yellow carotenoids (yellow base). Following the example from Table 3, we have to add 4.5 ppm of yellow carotenoids on top of the feed content (10.5-6). When using Apo-ester, we divide this amount by 3 (Table 1), reflecting its higher pigmenting efficacy. Therefore, we have to add 1.5 ppm of Apo-ester (15 ppm of CAROPHYLL® yellow 10%) and 4 ppm of Canthaxanthin (40 ppm of CAROPHYLL® red 10%).

DSM CAROPHYLL Yellow 10% Least Cost Formulation

Qualitative and Quantitative Composition

Active substance in 1 g: β-carotene - 4,4 - dione; 4,4 - 4,4-diketo-β-carotene – min. 100 mg..

Clinical Particulars

Type of animals

  • Poultry.

Therapeutic indications

  • Nutrition of laying hens and broilers.
  • Facilitates pigmentation of yolk and skin in poultry


  • None.

Special warnings and precautions for use

  • None.

Packaging & Availability


5 and 20 kg paper bags with aluminum inserts.

Storage & Handling


Shelf life

  • 24 months.

Special precautions for storage

  • Dry, cool place at temperature up to 15 °С.
  • Carophyll Red 10% sensitive to air, light and moisture.