Continuous monitoring of yoghurt fermentation using a noble metal electrode array

Bjorklund, Robert (författare): Linköpings universitet,Tillämpad Fysik,Tekniska högskolan

Martensson, P. (författare): Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan

Winquist, Fredrik (författare): Linköpings universitet,Tillämpad Fysik,Tekniska högskolan

Krantz-Rülcher, Christina (författare): Linköpings universitet,Tillämpad Fysik,Tekniska högskolan

(creator_code:org_t)

Wiley, 2009
2009
Engelska.
Ingår i: International Journal of Food Science and Technology. - : Wiley. - 0950-5423 .- 1365-2621. ; 44:3, s. 635-640

Relaterad länk:: https://urn.kb.se/re...; visa fler...; https://doi.org/10.1...; visa färre...

Abstract Ämnesord

Stäng

An electrochemical probe containing gold, platinum and rhodium working electrodes was used to monitor yoghurt production in a pilot facility. Three commercial starting cultures at 40, 42 and 44 C transformed milk having 1.5% fat content to mild yoghurt products. The electrochemical changes in the broth during fermentation were recorded as current responses from pulse voltammetry over the electrodes. Principal component analysis of the responses generated two-dimensional score plots describing the qualitative fermentation progressions. Two distinct fermentation pathways were observed leading to similar final products. The pH was recorded during the fermentations and the data was used as reference values for creating a partial least squares model for prediction of pH as an example of a quantitative application for the sensor. The relative mean squared error for validation of the model using four probes interchangeably was about 2%. The probe was constructed of materials approved for use in the food industry and did not require a standard glass reference electrode.

Av författaren/redakt...: Bjorklund, Rober ...; Magnusson, C.; Martensson, P.; Winquist, Fredri ...; Krantz-Rülcher, ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.