Streptococcus thermophilus - Revision history

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	'''Streptococcus thermophilus''' ~~(also known as ''S. thermophilus'')~~ is a ~~gram~~-positive bacterium~~, and~~ a member of the ~~genus~~ [[Streptococcus]]~~. A notable characteristic of this species~~ is its ~~ability to thrive at relatively high temperatures; it is thermophilic. ''S. thermophilus'' is widely used in the dairy industry, particularly~~ in the ~~production~~ of yogurt and cheese~~, due to its fermentative abilities. It is considered safe for consumption and has been granted Generally Recognized As Safe (GRAS) status by the United States Food and Drug Administration~~.		==Streptococcus thermophilus==

			[[File:20101210_020132_StreptococcusThermophilus.jpg\|Streptococcus thermophilus under a microscope\|thumb\|right]]

			'''Streptococcus thermophilus''' is a Gram-positive bacterium that is widely used in the production of dairy products. It is a member of the [[Streptococcus]] genus and is known for its role in the fermentation process of [[yogurt]] and [[cheese]].

	==Characteristics==		==Characteristics==
	''S. thermophilus'' is a non-motile bacterium that appears spherical (coccus) under the microscope. It is an obligate fermenter, meaning it produces lactic acid from lactose fermentation, which is a key process in the dairy industry for the production of various fermented products. Unlike some other members of the genus ''Streptococcus'', ''S. thermophilus'' is not known to be pathogenic; it does not cause disease in humans or animals.

	==~~Applications~~ in ~~Dairy Industry~~==		Streptococcus thermophilus is a thermophilic lactic acid bacterium, meaning it thrives at higher temperatures, typically between 45°C and 50°C. It is a facultative anaerobe, capable of surviving in both oxygen-rich and oxygen-poor environments. This bacterium is non-motile and forms chains of cocci, which are spherical cells.
	~~The primary application of ''S. thermophilus'' is in the dairy industry, where it is used in~~ the production of yogurt ~~and cheese. It~~ is often used in combination with ~~other lactic acid bacteria, such as~~ [[Lactobacillus delbrueckii subsp. bulgaricus]] in ~~yogurt~~ production, to ~~achieve~~ the ~~desired taste,~~ texture, ~~and nutritional properties~~. ~~The symbiotic relationship between these bacteria enhances~~ the ~~fermentation~~ process~~, contributing~~ to the ~~thickening~~ of ~~milk~~ and ~~development of characteristic flavors~~.
			==Role in Fermentation==

			In the production of yogurt, Streptococcus thermophilus is often used in combination with [[Lactobacillus delbrueckii subsp. bulgaricus]]. These bacteria work synergistically to ferment lactose, the sugar present in milk, into lactic acid. The production of lactic acid lowers the pH of the milk, causing it to coagulate and form the characteristic texture and tangy flavor of yogurt.

			In cheese production, Streptococcus thermophilus is used as a starter culture. It helps in the acidification of milk, which is a crucial step in the cheese-making process. The bacterium's ability to rapidly produce lactic acid makes it an essential component in the production of various types of cheese, including [[Mozzarella]] and [[Swiss cheese]].

	==Health Benefits==		==Health Benefits==
	Research has suggested that ''S. thermophilus'' may offer various health benefits. It is considered a probiotic, a type of beneficial bacteria that can help maintain a healthy balance of microorganisms in the gut. Consumption of ''S. thermophilus'' has been associated with improved digestion and a reduced risk of some gastrointestinal disorders. Additionally, it may contribute to the enhancement of the immune system, although more research is needed to fully understand its potential health benefits.

	~~==Genetics==~~		Streptococcus thermophilus is considered a [[probiotic]], which means it can confer health benefits when consumed in adequate amounts. It is believed to improve lactose digestion in individuals with lactose intolerance by breaking down lactose into simpler sugars. Additionally, it may contribute to gut health by maintaining a balanced [[microbiota]] in the digestive system.
	~~The genome of ''S.~~ thermophilus~~'' has been sequenced~~, ~~revealing insights~~ into ~~its ability to survive at high temperatures and its fermentative processes~~. ~~Genetic studies have also helped identify strains with specific desirable traits for industrial use~~, ~~such as improved texture or flavor production~~ in ~~dairy products~~.
			==Genomic Features==

	~~==Safety==~~		The genome of Streptococcus thermophilus has been sequenced, revealing insights into its metabolic pathways and adaptation to dairy environments. The bacterium possesses genes that enable it to efficiently utilize lactose and other sugars, as well as genes that confer resistance to phages, which are viruses that infect bacteria.
	~~As previously mentioned, ''S.~~ thermophilus~~'' is considered safe for human consumption and~~ has been ~~used in food production for centuries~~. ~~It does not produce toxins or cause disease in healthy individuals. However~~, as ~~with any food product~~, ~~individuals with specific allergies or intolerances should consult with a healthcare provider before consuming products containing ''S. thermophilus''~~.

	==~~Conclusion~~==		==Industrial Applications==
	''Streptococcus thermophilus'' plays a crucial role in the dairy industry and offers potential health benefits as a probiotic. Its safety, combined with its fermentative capabilities, makes it an invaluable resource in food production and research.

	[[Category:~~Bacteria~~]]		Beyond its use in dairy fermentation, Streptococcus thermophilus is also employed in the production of [[probiotic supplements]] and functional foods. Its ability to survive the acidic conditions of the stomach makes it a suitable candidate for delivering beneficial bacteria to the intestines.

			==Related Pages==

			* [[Lactobacillus delbrueckii subsp. bulgaricus]]
			* [[Yogurt]]
			* [[Cheese]]
			* [[Probiotic]]
			* [[Lactic acid bacteria]]

			[[Category:Streptococcaceae]]
			[[Category:Gram-positive bacteria]]
	[[Category:Probiotics]]		[[Category:Probiotics]]
	~~[[Category:Dairy science]]~~

	~~{{Bacteria-stub}}~~
	~~{{Probiotics-stub}}~~
	~~== Streptococcus thermophilus ==~~
	~~<gallery>~~
	~~File:20101210_020132_StreptococcusThermophilus.jpg~~
	~~</gallery>~~
	~~==Streptococcus_thermophilus==~~
	~~<gallery>~~
	~~File:20101210_020132_StreptococcusThermophilus.jpg\|Streptococcus thermophilus~~
	~~</gallery>~~

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			==Streptococcus_thermophilus==
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			File:20101210_020132_StreptococcusThermophilus.jpg\|Streptococcus thermophilus
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	{{Probiotics-stub}}		{{Probiotics-stub}}
			== Streptococcus thermophilus ==
			<gallery>
			File:20101210_020132_StreptococcusThermophilus.jpg
			</gallery>

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New page

'''Streptococcus thermophilus''' (also known as ''S. thermophilus'') is a gram-positive bacterium, and a member of the genus [[Streptococcus]]. A notable characteristic of this species is its ability to thrive at relatively high temperatures; it is thermophilic. ''S. thermophilus'' is widely used in the dairy industry, particularly in the production of yogurt and cheese, due to its fermentative abilities. It is considered safe for consumption and has been granted Generally Recognized As Safe (GRAS) status by the United States Food and Drug Administration.

==Characteristics==
''S. thermophilus'' is a non-motile bacterium that appears spherical (coccus) under the microscope. It is an obligate fermenter, meaning it produces lactic acid from lactose fermentation, which is a key process in the dairy industry for the production of various fermented products. Unlike some other members of the genus ''Streptococcus'', ''S. thermophilus'' is not known to be pathogenic; it does not cause disease in humans or animals.

==Applications in Dairy Industry==
The primary application of ''S. thermophilus'' is in the dairy industry, where it is used in the production of yogurt and cheese. It is often used in combination with other lactic acid bacteria, such as [[Lactobacillus delbrueckii subsp. bulgaricus]] in yogurt production, to achieve the desired taste, texture, and nutritional properties. The symbiotic relationship between these bacteria enhances the fermentation process, contributing to the thickening of milk and development of characteristic flavors.

==Health Benefits==
Research has suggested that ''S. thermophilus'' may offer various health benefits. It is considered a probiotic, a type of beneficial bacteria that can help maintain a healthy balance of microorganisms in the gut. Consumption of ''S. thermophilus'' has been associated with improved digestion and a reduced risk of some gastrointestinal disorders. Additionally, it may contribute to the enhancement of the immune system, although more research is needed to fully understand its potential health benefits.

==Genetics==
The genome of ''S. thermophilus'' has been sequenced, revealing insights into its ability to survive at high temperatures and its fermentative processes. Genetic studies have also helped identify strains with specific desirable traits for industrial use, such as improved texture or flavor production in dairy products.

==Safety==
As previously mentioned, ''S. thermophilus'' is considered safe for human consumption and has been used in food production for centuries. It does not produce toxins or cause disease in healthy individuals. However, as with any food product, individuals with specific allergies or intolerances should consult with a healthcare provider before consuming products containing ''S. thermophilus''.

==Conclusion==
''Streptococcus thermophilus'' plays a crucial role in the dairy industry and offers potential health benefits as a probiotic. Its safety, combined with its fermentative capabilities, makes it an invaluable resource in food production and research.

[[Category:Bacteria]]
[[Category:Probiotics]]
[[Category:Dairy science]]

{{Bacteria-stub}}
{{Probiotics-stub}}