| Detection of potassium sorbate adulteration in apple juice with the help of electronic nose |
| Paper ID : 1064-NICAME1402 |
| Authors: |
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NAHID AGHILI NATEGH *1, sanaz sadruyan2 1Department of Agricultural Machinery Engineering, Sonqor Faculty of Agriculture, Razi University, Kermanshah 22. Department of Biosystem Mechanical Engineering, Faculty of Agriculture, Razi University, Kermanshah, Iran |
| Abstract: |
| Apple juice is one of the main apple products. Potassium sorbate is a common antimicrobial agent that prevents the growth of fungi and some types of bacteria in food. Due to the indiscriminate use of potassium sorbate in the country's food industry, the risk of this preservative is high. In this research, an electronic nose system based on ten metal oxide semiconductor sensors was used to detect different percentages of potassium sorbate adulteration in apple juice. In this research, three treatments with titles, sample without preservatives (control), sample containing 0.1 potassium sorbate preservative and sample containing 0.2 potassium sorbate preservative were tested by electronic nose. Also, principal component analysis (PCA), linear discriminant analysis (LDA) and support vector machine (SVM) were used to classify the extracted features. . The LDA method with 90% accuracy had a very favorable performance in classifying different percentages of potassium sorbate adulteration in apple juice, while the SVM method could not perform well in detecting and classifying samples containing 0.2 potassium sorbate. The PCA method was also able to classify different percentages of potassium sorbate adulteration in apple juice with a total of 69% of data variance. MQ5 and TGS822 sensors played the most important role in differentiating between samples. |
| Keywords: |
| Electronic nose, Potassium sorbate, Apple juice, Cheating |
| Status : Paper Accepted (Poster Presentation) |
