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Continuous monitori...
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Bjorklund, RobertLinköpings universitet,Tillämpad Fysik,Tekniska högskolan
(författare)
Continuous monitoring of yoghurt fermentation using a noble metal electrode array
- Artikel/kapitelEngelska2009
Förlag, utgivningsår, omfång ...
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Wiley,2009
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:liu-18833
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-18833URI
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https://doi.org/10.1111/j.1365-2621.2008.01886.xDOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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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.
Ämnesord och genrebeteckningar
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Multivariate analysis; pH; Process monitoring; Voltammetry; Yoghurt
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NATURAL SCIENCES
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NATURVETENSKAP
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Magnusson, C.Arla Foods
(författare)
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Martensson, P.Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan
(författare)
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Winquist, FredrikLinköpings universitet,Tillämpad Fysik,Tekniska högskolan(Swepub:liu)frewi90
(författare)
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Krantz-Rülcher, ChristinaLinköpings universitet,Tillämpad Fysik,Tekniska högskolan(Swepub:liu)chrkr08
(författare)
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Linköpings universitetTillämpad Fysik
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:International Journal of Food Science and Technology: Wiley44:3, s. 635-6400950-54231365-2621
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