Publication:
A reagent-free SIA module for monitoring of sugar, color and dissolved CO2 content in soft drinks

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Issued Date

2010

Resource Type

Article

File Type

application/pdf

ISSN

32670

DOI

10.1016/j.aca.2010.01.021

Other identifier(s)

2-s2.0-77952671175

Rights Holder(s)

มหาวิทยาลัยศรีนครินทรวิโรฒ

Bibliographic Citation

Analytica Chimica Acta. Vol 668, No.1 (2010), p.47-53

Suggested Citation

Teerasong S., Chan-Eam S., Sereenonchai K., Amornthammarong N., Ratanawimarnwong N., Nacapricha D. A reagent-free SIA module for monitoring of sugar, color and dissolved CO2 content in soft drinks. Analytica Chimica Acta. Vol 668, No.1 (2010), p.47-53. doi:10.1016/j.aca.2010.01.021 Retrieved from: https://hdl.handle.net/20.500.14740/7590

Title

A reagent-free SIA module for monitoring of sugar, color and dissolved CO2 content in soft drinks

Author(s)

Teerasong S.
 Chan-Eam S.
 Sereenonchai K.
 Amornthammarong N.
 Ratanawimarnwong N.
 Nacapricha D.

Abstract

This work presents a new sequential injection analysis (SIA) method and a module for simultaneous and real-time monitoring of three key parameters for the beverage industry, i.e., the sugar content (measured in Brix), color and dissolved CO2. Detection of the light reflection at the liquid interface (the schlieren effect) of sucrose and water was utilized for sucrose content measurement. A near infrared LED (890±40nm) was chosen as the light source to ensure that all the ingredients and dyes in soft drinks will not interfere by contributing light absorption. A linear calibration was obtained for sucrose over a wide concentration range (3.1-46.5Brix). The same module can be used to monitor the color of the soft drink as well as the dissolved CO2 during production. For measuring the color, the sample is segmented between air plugs to avoid dispersion. An RGB-LED was chosen as the light source in order to make this module applicable to a wide range of colored samples. The module also has a section where dissolved CO2 is measured via vaporization of the gas from the liquid phase. Dissolved CO2, in a flowing acceptor stream of water resulting in the change of the acceptor conductivity, is detected using an in-house capacitively coupled contactless conductivity detector (C4D). The module includes a vaporization unit that is also used to degas the carbonated drink, prior the measurements of sucrose and color within the same system. The method requires no chemicals and is therefore completely friendly to the environment. © 2010 Elsevier B.V.

Subject(s)

Beverage industry
 Capacitively coupled
 Concentration ranges
 Contactless conductivity detector
 Content measurements
 Key parameters
 Linear calibration
 Liquid interface
 Liquid Phase
 Near Infrared
 Real time monitoring
 Schlieren effects
 Sequential injection analysis
 Soft drinks
 Sugar content
 Beverages
 Color
 Dissolution
 Gas absorption
 Light reflection
 Light sources
 Liquids
 Monitoring
 Semiconductor device manufacture
 Sugar (sucrose)
 Sugar industry
 Vaporization
 Water content
 Phase interfaces
 Carbon dioxide
 Dye
 Sucrose
 Sugar
 Water
 Article
 Calibration
 Carbonated beverage
 Color
 Concentration (parameters)
 Conductance
 Controlled study
 Dispersion
 Light absorption
 Light emitting diode
 Linear system
 Liquid
 Monitoring
 Priority journal
 Sequential injection analysis
 Vaporization

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URI

https://hdl.handle.net/20.500.14740/7590

Collections

Scopus: Year 1983-2021

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