Journal
JOURNAL OF FOOD SCIENCE
Volume 79, Issue 11, Pages S2346-S2353Publisher
WILEY-BLACKWELL
DOI: 10.1111/1750-3841.12675
Keywords
beef seasoning; chicken seasoning; electronic nose; multivariate statistical analysis; sensory evaluation
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This study examines the feasibility of electronic nose as a method to discriminate chicken and beef seasonings and to predict sensory attributes. Sensory evaluation showed that 8 chicken seasonings and 4 beef seasonings could be well discriminated and classified based on 8 sensory attributes. The sensory attributes including chicken/beef, gamey, garlic, spicy, onion, soy sauce, retention, and overall aroma intensity were generated by a trained evaluation panel. Principal component analysis (PCA), discriminant factor analysis (DFA), and cluster analysis (CA) combined with electronic nose were used to discriminate seasoning samples based on the difference of the sensor response signals of chicken and beef seasonings. The correlation between sensory attributes and electronic nose sensors signal was established using partial least squares regression (PLSR) method. The results showed that the seasoning samples were all correctly classified by the electronic nose combined with PCA, DFA, and CA. The electronic nose gave good prediction results for all the sensory attributes with correlation coefficient (r) higher than 0.8. The work indicated that electronic nose is an effective method for discriminating different seasonings and predicting sensory attributes. Practical Application Aroma is the most significant attribute in selecting seasonings. It is traditionally evaluated by descriptive sensory analysis. This study used electronic nose combined with multivariate statistical analysis to discriminate the chicken seasonings and beef seasonings and to predict the sensory attributes. Electronic nose would be used as a rapid, useful, and objective technique for seasonings grading.
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