Egg, yolk, dried

Basic Information

• Common Name: Dried Egg Yolk
• Scientific Name: Gallus gallus domesticus (Domestic Chicken Egg Yolk)
• Category: Animal Product

Varieties

Dried egg yolks do not have varieties in the traditional sense but can vary based on the chicken breed and feed, which may affect the nutritional content slightly. The primary differentiation in dried egg products lies in their processing methods and intended culinary or industrial uses.

Nutritional Information

• Macronutrients:
  • Carbohydrates: Minimal, generally less than 1.07g per 100g.
  • Proteins: High, about 34.2g per 100g. Egg yolks are a complete protein source, containing all essential amino acids.
  • Fats: High, approximately 55.5g per 100g. Rich in monounsaturated and polyunsaturated fats, including omega-3 fatty acids.
• Micronutrients:
  • Vitamins: Excellent source of vitamins A, D, E, and K, as well as B-complex vitamins, particularly B12 and choline, which is essential for brain health.
  • Minerals: Contains significant amounts of iron, phosphorus, selenium, and zinc.

Phytonutrient 

Eggs, including dried egg yolks, are not typically highlighted for their phytonutrient content in the same way plant-based foods are, given that phytonutrients are specific bioactive compounds found in plants. However, egg yolks are rich in various bioactive compounds and nutrients that contribute to their health benefits. Here’s an overview of some key components in dried egg yolks that could be considered equivalent to phytonutrients in their beneficial effects on health:

Carotenoids

• Lutein and Zeaxanthin: These are antioxidants that are highly concentrated in egg yolks. They are important for eye health, specifically for protecting against macular degeneration and cataracts. The drying process can concentrate these nutrients, making dried egg yolk a good source.

Fatty Acids

• Omega-3 Fatty Acids: Depending on the diet of the hens, egg yolks can contain significant amounts of omega-3 fatty acids, beneficial for heart health, brain function, and reducing inflammation.

Vitamins

• Vitamin D: Egg yolks are one of the few foods that naturally contain Vitamin D, essential for bone health and immune function.
• Vitamin E: An antioxidant that helps protect cells from oxidative stress.
• Vitamin A: Important for vision, the immune system, and reproduction.
• Choline: While not a vitamin, choline is an essential nutrient found abundantly in egg yolks, important for brain health and development.

Minerals

• Selenium: An antioxidant mineral important for various bodily processes, including cognitive function and immune response.

While these components are not phytonutrients in the plant-based sense, they function similarly by contributing to the egg’s nutritional value and offering health benefits. Dried egg yolk, due to its concentration, can provide these nutrients in more significant amounts compared to fresh egg yolks, albeit with a higher calorie and fat content. Including dried egg yolk in the diet can therefore contribute to intake of these essential nutrients, supporting overall health and wellness.

• Calorie Count: High, about 650-700 calories per 100g.
• Glycemic Index: Very low, given its negligible carbohydrate content.

Physical Characteristics

• Color: Bright yellow to golden, depending on the diet of the chickens.
• Shape: Powder or granules after drying.
• Size: Variable, depending on the form (powdered or granulated).
• Texture: Fine powder or small granules that are easily reconstituted with water.

Culinary Uses

• Common Dishes: Used in baking, pasta making, mayonnaise, sauces, and dressings to add richness, color, and flavor. It’s also utilized in the food industry for emulsification and as a thickening agent.
• Preparation Methods: Can be mixed with water to reconstitute before use. The ratio typically used is 1 part dried egg yolk to about 1.25 parts water by weight.
• Suitable Pairings: Enhances creamy and custard-like textures in dishes, pairs well with dairy ingredients, and is used to enrich baked goods and pasta.

Geographical Information

• Origin: Domestic chickens (Gallus gallus domesticus) have been raised for eggs for thousands of years, with origins tracing back to Southeast Asia.
• Primary Growing Regions: Eggs are produced globally, with China, the United States, India, and Mexico being among the largest producers of chicken eggs.
• Seasonal Availability: Dried egg yolk is available year-round, benefiting from long shelf life and convenience in storage and transportation.

Dried egg yolk offers a concentrated source of nutrients and culinary versatility, making it a valuable ingredient in various cooking and baking applications, especially where liquid egg yolk’s shelf life and storage might pose challenges.