carrageenan
Học thuậtThân thiện
Definition
Noun: A colloidal extract obtained from certain red algae, specifically carrageen seaweed (Chondrus crispus) and other related species. It is a natural, water-soluble polysaccharide used primarily as a thickening, gelling, and stabilizing agent in food and other industrial products.
Usage
"Carrageenan" is used as a mass noun (uncountable) to refer to the extracted substance itself. It is most commonly discussed in the contexts of food science, product labeling, and industrial manufacturing.
Examples
- The ingredient list shows that this ice cream contains carrageenan.
- Carrageenan is often added to plant-based milks to improve their texture and prevent separation.
- Researchers studied the gelling properties of different types of carrageenan.
Advanced Usage
- Kappa-, Iota-, and Lambda-carrageenan: These are specific types of carrageenan classified based on their chemical structure and gelling properties. Kappa forms strong, brittle gels; iota forms soft, elastic gels; and lambda is non-gelling and used as a thickener.
- Example: Kappa-carrageenan is commonly used in dessert gels.
Variants and Related Words
- Carrageen (noun): Another name for the seaweed , also known as Irish moss, from which carrageenan is extracted.
- Carrageenin (noun): An older, less common synonym for "carrageenan."
Synonyms
- E407: This is its official code as a food additive in the European Union.
- Irish moss extract: A descriptive synonym, though it can sometimes refer to the whole seaweed or a less refined product.
Notes on Different Meanings
The word "carrageenan" has a single, specific technical meaning related to the hydrocolloid extract. It does not have common idiomatic or phrasal verb uses.
Noun
- a colloidal extract from carrageen seaweed and other red algae