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[[Category:Microbiology]]
{{Short description|Microbiology measurement process}}
{{nofootnotes|date=May 2017}}
[[Category:Water management]]
[[Category:Microbiology techniques]]
[[Category:Environmental chemistry]]
[[Category:Water pollution]]

{{refimprove|date=October 2009}}


The '''ATP test''' is a process of rapidly measuring actively growing microorganisms through detection of [[adenosine triphosphate]], or ATP.
The '''ATP test''' is a process of rapidly measuring actively growing microorganisms through detection of [[adenosine triphosphate]], or ATP.


==Method==
==ATP testing method==


ATP is a [[molecule]] found in and around living [[cell (biology)|cells]], and as such it gives a direct measure of biological concentration and health. ATP is quantified by measuring the light produced through its reaction with the naturally-occurring [[firefly]] enzyme [[luciferase]] using a [[photometer|luminometer]]. The amount of light produced is directly proportional to the amount of living organisms present in the sample. <ref>http://www.luminultra.com/technology/atp-explained/what-is-atp.html</ref>
ATP is a [[molecule]] found in and around living [[cell (biology)|cells]], and as such it gives a direct measure of biological concentration and health. ATP is quantified by measuring the light produced through its reaction with the naturally occurring [[firefly]] enzyme [[luciferase]] using a [[photometer|luminometer]]. The amount of light produced is directly proportional to the amount of ATP present in the sample.


'''ATP tests can be used to:'''
'''ATP tests can be used to:'''
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* Guide [[biocide]] dosing programs
* Guide [[biocide]] dosing programs
* Determine drinking water cleanliness
* Determine drinking water cleanliness
* Manage [[fermentation]] processes
* Manage [[Fermentation (biochemistry)|fermentation]] processes
* Assess soil activity
* Assess soil activity
* Determine corrosion / deposit process type
* Determine corrosion / deposit process type
* Measure equipment or product sanitation
* Measure equipment or product sanitation


==1st generation testing ''vs''. 2nd generation testing==
==1st-generation testing ''vs''. 2nd-generation testing==


1st generation ATP tests are derived from [[hygiene]] monitoring uses where samples are relatively free of interferences. 2nd Generation tests are specifically designed for water, wastewater and industrial applications where, for the most part, samples contain a variety of components that can interfere with the ATP assay. <ref>http://www.luminultra.com/resources/case-studies-technical-papers/case-studies-technical-papers.html</ref>
1st-generation ATP tests are derived from [[hygiene]] monitoring uses where samples are relatively free of interferences. 2nd-generation tests are specifically designed for water, [[wastewater]] and industrial applications where, for the most part, samples contain a variety of components that can interfere with the ATP assay.


==How ATP is measured==
==How ATP is measured==

ATP is a molecule found only in and around living cells, and as such it gives a direct measure of biological concentration and health. ATP is quantified by measuring the light produced through its reaction with the naturally-occurring firefly enzyme luciferase using a luminometer. The amount of light produced is directly proportional to the amount of biological energy present in the sample.


Within a water sample containing microorganisms, there are two types of ATP:
Within a water sample containing microorganisms, there are two types of ATP:
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* [[Extracellular]] ATP – ATP located outside of biological cells that has been released from dead or stressed organisms.
* [[Extracellular]] ATP – ATP located outside of biological cells that has been released from dead or stressed organisms.


Accurate measurement of these two types of ATP is critical to utilizing ATP-based measurements. Being able to accurately measure these different types of ATP offers the ability to assess biological health and activity, and subsequently control water and [[wastewater]] processes. <ref>http://www.luminultra.com/technology/atp-explained/how-is-atp-measured.html</ref>
Accurate measurement of these two types of ATP is critical to utilizing ATP-based measurements. Being able to accurately measure these different types of ATP offers the ability to assess biological health and activity, and subsequently control water and [[wastewater]] processes.


==See also==
==See also==
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* [[Adenosine triphosphate]]
* [[Adenosine triphosphate]]


==External links==
==References==
{{reflist|30em}}
https://meridian.allenpress.com/jfp/article/81/5/729/175086/Development-of-a-Novel-Hygiene-Monitoring-System


https://meridian.allenpress.com/jfp/article/85/7/1079/481183/A-Comprehensive-Analysis-of-ATP-Tests-Practical
* [http://www.foodquality.com/mag/08012006/fq_08012006_SS1.htm What ATP testing can and cannot do.]


==External links==
* [http://www.neogen.com/FoodSafety/AP_Index.html Neogen Corporation - AccuPoint ATP Sanitation Monitor]
* [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2846007 Efficacy and Limitations of an ATP-Based Monitoring System]


[[Category:Microbiology techniques]]

[[Category:Environmental chemistry]]
* [http://www.luminultra.com/technology/atp-explained/what-can-atp-testing-do-for-me.html LuminUltra Technologies Ltd.- 2nd Generation ATP Testing]
[[Category:Water pollution]]

==References==

{{Reflist}}

Latest revision as of 03:47, 9 June 2024

The ATP test is a process of rapidly measuring actively growing microorganisms through detection of adenosine triphosphate, or ATP.

Method

[edit]

ATP is a molecule found in and around living cells, and as such it gives a direct measure of biological concentration and health. ATP is quantified by measuring the light produced through its reaction with the naturally occurring firefly enzyme luciferase using a luminometer. The amount of light produced is directly proportional to the amount of ATP present in the sample.

ATP tests can be used to:

  • Control biological treatment reactors
  • Guide biocide dosing programs
  • Determine drinking water cleanliness
  • Manage fermentation processes
  • Assess soil activity
  • Determine corrosion / deposit process type
  • Measure equipment or product sanitation

1st-generation testing vs. 2nd-generation testing

[edit]

1st-generation ATP tests are derived from hygiene monitoring uses where samples are relatively free of interferences. 2nd-generation tests are specifically designed for water, wastewater and industrial applications where, for the most part, samples contain a variety of components that can interfere with the ATP assay.

How ATP is measured

[edit]

ATP is a molecule found only in and around living cells, and as such it gives a direct measure of biological concentration and health. ATP is quantified by measuring the light produced through its reaction with the naturally-occurring firefly enzyme luciferase using a luminometer. The amount of light produced is directly proportional to the amount of biological energy present in the sample.

Within a water sample containing microorganisms, there are two types of ATP:

  • Intracellular ATP – ATP contained within living biological cells.
  • Extracellular ATP – ATP located outside of biological cells that has been released from dead or stressed organisms.

Accurate measurement of these two types of ATP is critical to utilizing ATP-based measurements. Being able to accurately measure these different types of ATP offers the ability to assess biological health and activity, and subsequently control water and wastewater processes.

See also

[edit]

References

[edit]

https://meridian.allenpress.com/jfp/article/81/5/729/175086/Development-of-a-Novel-Hygiene-Monitoring-System

https://meridian.allenpress.com/jfp/article/85/7/1079/481183/A-Comprehensive-Analysis-of-ATP-Tests-Practical

[edit]