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Monitoring of solid-state fermentation of protein feed by electronic nose and chemometric analysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
34703 45040 2014 6 PDF Available
Title
Monitoring of solid-state fermentation of protein feed by electronic nose and chemometric analysis
Abstract

•E-nose technique was attempted to monitor the SSF process of protein feed.•Application of linear and non-linear algorithms in calibrating discrimination model using e-nose data.•Optimizing discrimination model by five-fold cross-validation.

To achieve the real-time smell monitoring of solid-state fermentation (SSF) of protein feed associated with its degree of fermentation. Electronic nose (e-nose) technique, with the help of chemometric analysis, was attempted in this study. Linear discriminant analysis (LDA), K-nearest neighbors (KNN), and support vector machines (SVM) were respectively used to calibrate discrimination models in order to evaluate the influences of different linear and non-linear classification algorithms on the identification results. Experimental results showed that the predictive precision of SVM model was superior to those of the others two, and the optimum SVM model was obtained when five PCs were included. The discrimination rates of the SVM model were 97.14% and 91.43% in the training and testing sets, respectively. The overall results sufficiently demonstrate excellent promise for the e-nose technique combined with an appropriate chemometric method to be applied in the SSF industry.

Keywords
Electronic nose; Protein feed; Solid-state fermentation; Sensors; Chemometric analysis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 49, Issue 4, April 2014, Pages 583–588
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us