摘要：Pistachio nut cream was produced by using pistachio nut, powdered sugar, defatted milk powder, margarine, lecithin and vanilla. Spreadable pistachio nut creams were stored at 4 and 20 oC up to 240 days. Curve fittings of color variables ( L, a, b ) and moisture content (%), 2-tiobarbutric acid, browning indices, total chlorophyll, chlorophyll a and b values of spreadable pistachio nut cream were investigated during the storage period. Different mathematical expressions investigated for the curve fittings as exponential, logarithmic, rational, polynomial, Peleg, Weibull, Gaussian, power, Fourier and sin functions. Exponential and cubic polynomial equations gave the best fitting results due to the high regression coefficient (r2), and lower RMSE (%) and SSE (%) values.
关键词：Pistachio nut cream; color variables; curve fittings; exponential and polynomial equations
