TY - JOUR T1 - DETERMINATION OF THE EFFECTS OF HEAT TREATMENT APPLIED TO ANCHOVY ON PUTREFACTION BY ELECTRONIC NOSE TT - HAMSIYE UYGULANAN ISIL İŞLEMIN KOKUŞMA ÜZERINE ETKILERINININ ELEKTRONIK BURUN İLE BELIRLENMESI AU - Yavuzer, Emre PY - 2025 DA - August Y2 - 2025 DO - 10.15237/gida.GD25066 JF - Gıda JO - GIDA PB - Gıda Teknolojisi Derneği WT - DergiPark SN - 1300-3070 SP - 620 EP - 628 VL - 50 IS - 4 LA - en AB - In this study, the effect of heat treatment on the putrefaction levels of anchovy fish was investigated using an electronic nose system. Sensor data (MQ3, MQ4, MQ5, MQ9, MQ131, MQ135, MQ136, MQ137, MQ138, MQ139, MG811 and TGS813) obtained from raw and cooked anchovy samples during storage periods and the sensitivity of the sensors to odour changes were analysed. Based on the differences of their signals (ΔS) between two states, the effect of heat treatment on the odour dynamics was modelled by linear regression models. For example, modelling results for the MQ136 sensor were determined in the form ΔS(t) = -16.59t + 37.33 (R² = 0.84), showing that cooking significantly decreases sensor responses over time. The findings indicated that cooking was found to delay odorization, likely due to changes in lipid oxidation and volatile compound dynamics, and that low-cost sensors can be developed into an advanced electronic nose system. KW - Anchovy KW - electronic nose KW - MQ sensor KW - heat treatment KW - putrefaction N2 - Bu çalışmada, hamsi balıklarının bözulma seviyelerine ısıl işlemin etkisi elektronik burun sistemi kullanılarak araştırılmıştır. Depolama süreleri boyunca çiğ ve pişmiş hamsi örneklerinden elde edilen sensör verileri (MQ3, MQ4, MQ5, MQ9, MQ131, MQ135, MQ136, MQ137, MQ138, MQ139, MG811 ve TGS813) ve sensörlerin koku değişikliklerine olan hassasiyetleri analiz edilmiştir. İki durum arasındaki sinyal farklılıklarına (ΔS) dayanarak, ısıl işlemin koku dinamikleri üzerindeki etkisi doğrusal regresyon modelleri ile modellenmiştir. Örneğin, MQ136 sensörü için modelleme sonuçları ΔS(t) = -16.59t + 37.33 (R² = 0.84) biçiminde belirlenmiş ve ısıl işlemin sensör tepkilerini zamanla önemli ölçüde azalttığını göstermiştir. Bulgular, pişirmenin muhtemelen lipit oksidasyonu ve uçucu bileşik dinamiklerindeki değişiklikler nedeniyle koku oluşumunu geciktirdiğini ve düşük maliyetli sensörlerin gelişmiş bir elektronik burun sistemine dönüştürülebileceğini göstermiştir. CR - Al Isyrofie, A. I. F., Kashif, M., Aji, A. K., Aidatuzzahro, N., Rahmatillah, A., Winarno, Susilo, Y., Syahrom, A., Astuti, S. D. (2022). Odor clustering using a gas sensor array system of chicken meat based on temperature variations and storage time. Sensing and Bio-Sensing Research, 37, 100508. https://doi.org/10.1016/ J.SBSR.2022.100508 CR - Amorim, T. L., Fuente, M. A. de la, Oliveira, M. A. 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