Lowenstein–Jensen medium
E271796
Lowenstein–Jensen medium is a specialized egg-based solid growth medium used primarily for the isolation and cultivation of Mycobacterium species, especially Mycobacterium tuberculosis, in clinical microbiology.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lowenstein–Jensen medium canonical | 9 |
| Lowenstein-Jensen medium | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2504139 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lowenstein–Jensen medium Context triple: [Mycobacterium tuberculosis, cultureMedium, Lowenstein–Jensen medium]
-
A.
Nourse
Nourse is a surname and variant spelling of "Nurse," historically associated with English-speaking families and occasionally used as a place or business name.
-
B.
Penicillium chrysogenum
Penicillium chrysogenum is a species of filamentous fungus best known as the original industrial source of the antibiotic penicillin.
-
C.
Mycobacterium tuberculosis
Mycobacterium tuberculosis is the pathogenic bacterial species that causes most cases of human tuberculosis, primarily affecting the lungs and spreading through airborne transmission.
-
D.
Koch's postulates
Koch's postulates are a set of criteria formulated in the late 19th century to establish a causal relationship between a specific microorganism and a particular disease.
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E.
Colwell
Colwell is a surname most notably associated with Rita R. Colwell, an influential American microbiologist and former director of the U.S. National Science Foundation.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Lowenstein–Jensen medium Target entity description: Lowenstein–Jensen medium is a specialized egg-based solid growth medium used primarily for the isolation and cultivation of Mycobacterium species, especially Mycobacterium tuberculosis, in clinical microbiology.
-
A.
Nourse
Nourse is a surname and variant spelling of "Nurse," historically associated with English-speaking families and occasionally used as a place or business name.
-
B.
Penicillium chrysogenum
Penicillium chrysogenum is a species of filamentous fungus best known as the original industrial source of the antibiotic penicillin.
-
C.
Mycobacterium tuberculosis
Mycobacterium tuberculosis is the pathogenic bacterial species that causes most cases of human tuberculosis, primarily affecting the lungs and spreading through airborne transmission.
-
D.
Koch's postulates
Koch's postulates are a set of criteria formulated in the late 19th century to establish a causal relationship between a specific microorganism and a particular disease.
-
E.
Colwell
Colwell is a surname most notably associated with Rita R. Colwell, an influential American microbiologist and former director of the U.S. National Science Foundation.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
culture medium
ⓘ
egg-based medium ⓘ selective medium ⓘ solid growth medium ⓘ |
| alternativeTo |
Middlebrook 7H10 agar
ⓘ
Middlebrook 7H11 agar ⓘ
linked to:
Middlebrook 7H10 agar
|
| classifiedAs | biosafety level 3 culture medium when used with M. tuberculosis ⓘ |
| colonyMorphologyOnMedium | rough, buff-colored colonies of Mycobacterium tuberculosis ⓘ |
| developedBy |
Ernst Lowenstein
ⓘ
Kurt Jensen ⓘ |
| glycerolEffect | enhances growth of Mycobacterium tuberculosis ⓘ |
| hasComponent |
asparagine
ⓘ
disodium phosphate ⓘ glycerol ⓘ magnesium sulfate ⓘ malachite green ⓘ mineral salts ⓘ monopotassium phosphate ⓘ potato flour or starch ⓘ whole eggs ⓘ |
| hasPreparationStep |
coagulation by inspissation
ⓘ
dispensing into tubes or bottles ⓘ mixing of mineral salt solution with eggs and other components ⓘ |
| hasProperty |
green color due to malachite green
ⓘ
inhibits most contaminating bacteria ⓘ selective for mycobacteria ⓘ solidified by coagulation of eggs ⓘ |
| hasVariant |
Lowenstein–Jensen medium with pyruvate
ⓘ
Lowenstein–Jensen medium without glycerol ⓘ |
| inhibitsGrowthOf |
most Gram-negative bacteria
ⓘ
most Gram-positive bacteria ⓘ |
| pyruvateEffect | enhances growth of Mycobacterium bovis ⓘ |
| qualityControlOrganism |
Mycobacterium tuberculosis H37Rv strain
ⓘ
linked to:
Mycobacterium tuberculosis
|
| requiresIncubationAtmosphere | aerobic conditions ⓘ |
| requiresIncubationTemperature | 35–37 °C ⓘ |
| storageCondition | refrigerated before use ⓘ |
| supportsGrowthOf |
Mycobacterium tuberculosis complex
ⓘ
nontuberculous mycobacteria ⓘ |
| typicalIncubationTime | up to 8 weeks for visible mycobacterial colonies ⓘ |
| usedFor |
cultivation of Mycobacterium species
ⓘ
cultivation of Mycobacterium tuberculosis ⓘ isolation of Mycobacterium species ⓘ isolation of Mycobacterium tuberculosis ⓘ |
| usedIn |
clinical microbiology
ⓘ
diagnosis of tuberculosis ⓘ |
| usedWithSpecimenType |
body fluids suspected of mycobacterial infection
ⓘ
bronchoalveolar lavage ⓘ sputum ⓘ tissue biopsies ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Lowenstein–Jensen medium Description of subject: Lowenstein–Jensen medium is a specialized egg-based solid growth medium used primarily for the isolation and cultivation of Mycobacterium species, especially Mycobacterium tuberculosis, in clinical microbiology.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Lowenstein–Jensen medium