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Information about Lactobacillus Bulgaricus

Lactobacillus bulgaricus
Scientific classification
Kingdom:Bacteria
Division:Firmicutes
Class:Bacilli
Order:Lactobacillales
Family:Lactobacillaceae
Genus:Lactobacillus
Species:L. delbrueckii
Subspecies:bulgaricus
Binomial name
Lactobacillus delbrueckii subsp. bulgaricus
(Orla-Jensen 1919)
Rogosa & Hansen 1971
Weiss et al. 1984 (subspecies status)
Lactobacillus bulgaricus (binomial name Lactobacillus delbrueckii subsp. bulgaricus) is one of several bacteria used for the production of yogurt. First identified in 1905 by the Bulgarian doctor Stamen Grigorov, it is named after Bulgaria. Morphologically, it is a Gram-positive rod that may appear long and filamentous. It is also non-motile, and it does not form spores. It has complex nutritional requirements, including the inability to ferment any sugar except for lactose. This bacterium is also regarded as aciduric or acidphilic, due to the fact that it requires a relatively low pH (around 5.4-4.6) in order to grow effectively.

The bacterium feeds on milk and produces lactic acid which also helps to preserve the milk. It breaks down lactose and is often helpful to sufferers of lactose intolerance, whose digestive systems lack the enzymes to break down lactose to simpler sugars. While fermenting milk, Lactobacillus bulgaricus produces acetaldehyde, which perfumes yogurt. Some of the biggest importers of the bacterium are Japan, USA and the EU.

References

  • A. Balows, H.G.Truper, M. Dworkin, W. Harder, K.H.Schleifer (1991). The Prokaryotes, 2nd Edition, A Handbook on the Biology of Bacteria, Chapter 70, pg 1547. 

External links

Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Bacteria

Phyla

Actinobacteria
Aquificae
Chlamydiae
Bacteroidetes/Chlorobi
Chloroflexi
Chrysiogenetes
Cyanobacteria
Deferribacteres
Deinococcus-Thermus
Dictyoglomi
Fibrobacteres/Acidobacteria
Firmicutes
Fusobacteria
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Firmicutes

Classes

Bacilli
Clostridia
Mollicutes
The Firmicutes are a division of bacteria, most of which have Gram-positive cell wall structure.
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Bacilli

Orders

Bacillales
Lactobacillales

Bacilli specifically refers to a taxonomic class of bacteria. It includes two orders, Bacillales and Lactobacillales, which contain several well-known pathogens like Bacillus anthracis
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Lactobacillales

Families

Aerococcaceae
Carnobacteriaceae
Enterococcaceae
Lactobacillaceae
Leuconostocaceae
Streptococcaceae
The Lactobacillales are an order of Gram-positive bacteria that comprise the lactic acid bacteria.
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Lactobacillaceae

Scientific classification

Kingdom: Bacteria

Division: Firmicutes

Class: Bacilli

Order: Lactobacillales

Genera
Lactobacillus
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Lactobacillus
Beijerinck 1901

Species

L. acidophilus
L. brevis
L. delbrueckii subsp. bulgaricus
L. casei
L. delbrueckii
L. fermentum
L. helveticus
L.
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binomial nomenclature is the formal system of naming species. The system is also called binominal nomenclature (particularly in zoological circles), binary nomenclature (particularly in botanical circles), or the binomial classification system.
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Bacteria

Phyla

Actinobacteria
Aquificae
Chlamydiae
Bacteroidetes/Chlorobi
Chloroflexi
Chrysiogenetes
Cyanobacteria
Deferribacteres
Deinococcus-Thermus
Dictyoglomi
Fibrobacteres/Acidobacteria
Firmicutes
Fusobacteria
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Yoghurt or yogurt, or less commonly yoghourt or yogourt (see spelling below), is a dairy product produced by bacterial fermentation of milk. Fermentation of the milk sugar (lactose) produces lactic acid, which acts on milk protein to give yoghurt its
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19th century - 20th century - 21st century
1870s  1880s  1890s  - 1900s -  1910s  1920s  1930s
1902 1903 1904 - 1905 - 1906 1907 1908

Year 1905 (MCMV
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Motto
Съединението прави силата   (Bulgarian)
"Suedinenieto pravi silata"
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Stamen Grigorov (Bulgarian: Стамен Григоров) (October 27, 1878 - October 27, 1945) was a prominent Bulgarian physician.
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Motto
Съединението прави силата   (Bulgarian)
"Suedinenieto pravi silata"
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Gram-positive bacteria are those that retain a crystal violet dye during the Gram stain process.[1] Gram-positive bacteria appear blue or violet under a microscope, while Gram-negative bacteria appear red or pink.
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Milk is an opaque white liquid produced by the mammary glands of female mammals (including monotremes). Mammary glands are highly specialized sweat glands. The female ability to produce milk is one of the defining characteristics of mammals.
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Lactic acid (IUPAC systematic name: 2-hydroxypropanoic acid), also known as milk acid, is a chemical compound that plays a role in several biochemical processes.
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Lactose is a disaccharide that consists of β-D-galactose and β-D-glucose molecules bonded through a β1-4 glycosidic linkage. Lactose makes up around 2-8% of the solids in milk. The name comes from the Latin word for milk, plus the -ose ending used to name sugars.
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Lactose intolerance
Classification & external resources

Lactose, a disaccharide of β-D-galactose &
β-D-glucose, that is normally split by lactase.
ICD-10 E 73.
ICD-9 271.
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Enzymes are proteins that catalyze (i.e. accelerate) chemical reactions.[1] In enzymatic reactions, the molecules at the beginning of the process are called substrates, and the enzyme converts them into different molecules, the products.
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Acetaldehyde, sometimes known as ethanal, is an organic chemical compound with the formula CH3CHO or MeCHO. It is a flammable liquid with a fruity smell.
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Motto
"In God We Trust"   (since 1956)
"E Pluribus Unum"   ("From Many, One"; Latin, traditional)
Anthem
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“EU” redirects here. For other uses, see EU (disambiguation).


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