How to measure pungency level? How when temp and aw increases color decrease Particle size Moisture content Ascorbic acid – HPLC Capsaicinoids – Vincent and ken method – HPLC analysis Free sugars – HPLC with RI detector Microbial – plate count agar Sorption isotherm - Static gravimetric method Water activity – Novasina water activity meter Mono layer moisture content – GAB model Color measurement – ASTA and hunter color lab What is total color difference in hunter color lab?