prolamine

Thân thiện

A scientist examines prolamine under a microscope in the laboratory.

Definition

Noun: A simple, alcohol-soluble protein found in the seeds of cereal grains. Prolamines are a type of plant storage protein and are notable for being rich in the amino acid proline and glutamine, but deficient in essential amino acids like lysine. They are a major component of the protein fraction in grains such as wheat (gliadin), barley (hordein), rye (secalin), and corn (zein).

Usage Examples

• The prolamine content in wheat, known as gliadin, is responsible for the elastic properties of dough.
• Researchers are studying the digestibility of different prolamines in animal feed.
• Some individuals have an immune reaction to specific prolamines, such as those found in wheat and rye.

Advanced Usage

• In nutritional science, the term prolamine is often discussed in the context of protein quality due to its imbalance of essential amino acids.
• In food chemistry, the functional properties of a prolamine, like zein from corn, are exploited for making edible films and coatings.

Variants and Related Words

• Prolamin (noun): An alternative spelling for prolamine.
• Gliadin (noun): The specific prolamine found in wheat.
• Zein (noun): The specific prolamine found in corn (maize).
• Hordein (noun): The specific prolamine found in barley.
• Secalin (noun): The specific prolamine found in rye.

Synonyms

• Storage protein (in the specific context of cereal grains)
• Alcohol-soluble protein

Related Phrases & Contexts

• Prolamine fraction: Refers to the portion of total grain protein that is composed of prolamines.
• Prolamine body: A term used in cell biology for the protein storage bodies within seeds that contain prolamines.

Học thuật

Noun

1. a simple protein found in plants