Electronic Nose (E-Nose) for Quality Detection of Tuna (Thunnus thynnus) Contaminated Bacteria

Tuna (Thunnus thynnus) is a food that often consumed raw to support diet activities, so it has the potential be contaminated with Salmonella typhi bacteria. Fish can by bacteria due their high water and protein content. Indonesia world's main tuna producer. detection in fresh must negative for microbial contamination order meet safety requirements. Microbial testing drawbacks, such as long delays. An electronic nose was used detect fish. The sample consisted of 3 kinds samples: bacteria, tuna, contamination. research conducted shelf life 48 hours sensing period every 6 sensor array 8 sensors. output data processed using PCA (Principal Component Analysis) method. Through method, each variation bacterial treatment classified. result cumulative percentage variance two components (PC) classification test between typhi, 90.5%. most influential sensors this study are TGS 825 PC1 loading value 0.625 826 PC2 -0.753. Therefore, concluded an classify pure