NATÜREL ZEYTİNYAĞI TAĞŞİŞİNİN TESPİTİNDE STEROL KOMPOZİSYONU, ECN42 FARKI VE FTIR SPEKTROSKOPİSİNİN KULLANIMININ KARŞILAŞTIRMALI OLARAK İNCELENMESİ

Due to its high price and consumer demand, virgin olive oil is an essential product vulnerable deception for unfair economic gain. In our research, sunflower, palm olein cottonseed were used as adulterants in different amounts the preparation of adulterated samples. Sterol composition, difference theoretical actual equivalent carbon number 42 triglycerides (ΔECN42) value FTIR spectra classify Decision trees on Δ7-stigmastenol campesterol allowed detection 10% higher adulteration. ΔECN42 ad provided good samples, even mixed oils at 1% concentration. However, detecting performance decreased sample set expanded with seasons varieties. Correct multivariate approach data selection significantly influence spectroscopy VOO