# Bile esculin agar

> growth medium

**Wikidata**: [Q2876978](https://www.wikidata.org/wiki/Q2876978)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Bile_esculin_agar)  
**Source**: https://4ort.xyz/entity/bile-esculin-agar

## Summary
Bile esculin agar is a growth medium used for the cultivation and isolation of microorganisms or cells in a controlled laboratory environment. It functions by providing essential nutrients, moisture, and physical support, allowing for the growth and reproduction of biological cultures outside their natural habitats.

## Key Facts
- **Classification**: It is an instance of a **growth medium**, a substance used to cultivate microorganisms, cells, or tissues.
- **Aliases**: Known alternatively as **BEA**, **Bea (gélose bile esculine azide)**, **gelose Bile Esculine Azide**, **bouillon bilié**, **Bilié (Bouillon)**, and **Bilie (bouillon)**.
- **Identifiers**:
  - Freebase ID: `/m/026n9s1`
  - Microsoft Academic ID: `2779567600` (discontinued)
- **Digital Presence**:
  - Wikipedia Title: **Bile esculin agar**
  - Sitelink Count: 5
  - Available Languages: Commons, English (en), Spanish (es), French (fr), Japanese (ja)
  - Commons Category: Bile esculin agar

## FAQs
### What is Bile esculin agar used for?
As a growth medium, it is used to cultivate microorganisms or cells by providing the necessary nutrients, moisture, and sterile environment required for growth, facilitating scientific research and medical diagnostics.

### What forms can Bile esculin agar take?
Like other growth media, it is available in liquid or gel states. Gels, often formed using agar, provide solid support for colony formation, while liquids (broths) are used for fermentative growth.

### What are the aliases for Bile esculin agar?
It is frequently referred to by abbreviations and variations such as BEA, bouillon bilié, and Bea (gélose bile esculine azide), reflecting its formulation and usage in different languages.

## Why It Matters
Bile esculin agar represents a foundational tool in the biological and medical sciences. As a specialized growth medium, it allows researchers to study microorganisms in controlled settings, a capability that is essential for diagnosing pathogens, testing drug susceptibility, and conducting genetic research. By isolating and cultivating specific organisms, this medium supports critical advancements in public health and biotechnology, mimicking natural environments within a laboratory context to enable reproducible experimentation.

## Notable For
- **Versatility in Formulation**: As a growth medium, it is part of a category notable for being customizable to support specific organisms or cell types while inhibiting others.
- **Cross-Language Presence**: It possesses a multilingual digital footprint, with Wikipedia entries and aliases in English, French, Spanish, and Japanese.
- **Structural Utility**: It functions as a solid gel support (agar), which is distinct from liquid broths and crucial for isolating visible microbial colonies.

## Body
### Definition and Context
Bile esculin agar is a growth medium, a sterile formulation designed to support the growth of microorganisms, cells, or tissues. It operates by mimicking natural environments, providing essential nutrients, salts, carbohydrates, and physical support. While the specific formulation details for Bile esculin agar are specialized, it shares the core purpose of all growth media: to enable the cultivation of life forms for research, medical diagnostics, and industrial applications.

### Nomenclature and Aliases
The entity is identified by several names and abbreviations across different scientific contexts and languages.
*   **Primary Title**: Bile esculin agar
*   **Abbreviations**: BEA
*   **French Variants**: Bea (gélose bile esculine azide), bouillon bilié, Bilié (Bouillon), Bilie (bouillon), gelose Bile Esculine Azide.

### Technical Classification and Identifiers
Bile esculin agar is formally classified within knowledge graphs and academic databases under the parent class "growth medium."
*   **Instance Of**: Growth medium
*   **Freebase ID**: `/m/026n9s1`
*   **Microsoft Academic ID**: 2779567600 (Note: this service is discontinued)
*   **Wikidata Description**: growth medium
*   **Sitelinks**: It is connected to 5 sitelinks across various Wikipedia languages including English, Spanish, French, and Japanese, as well as Wikimedia Commons.

### Characteristics of Growth Media
As a member of the growth medium class, Bile esculin agar possesses general characteristics inherent to this category:
*   **Physical State**: It may exist as a liquid or a gel; the term "agar" specifically denotes the use of a gelling agent to provide solid support.
*   **Composition**: Typically includes nutrients and salts, and may be supplemented with agents like serum, amino acids, or antibiotics to select for specific growth.
*   **Applications**: Used broadly in microbiology for isolation, cultivation, and experimentation.

### Related Materials
The usage of Bile esculin agar is often associated with specific laboratory tools and supplements mentioned in the context of growth media:
*   **Supplements**: May involve growth factors or antibiotics to support or select for specific organisms.
*   **Equipment**: Utilized in conjunction with Petri dishes (for solid agar plates) or tubes (for broths).