| The present study was carried out to enhance shelf life of pasteurized cream using
Echinophora platyloba essential oil (EEO) and lycopene. For this purpose, two concentrations of
EEO (0.10% and 0.50%) and lycopene (20 and 50 ppm) alone and together as combinations
were added in pasteurized creams and analyzed for microbial characteristics, sensorial
properties and lipid stability during storage at 4 ˚C and 25 ˚C for 14 days. Results of microbial
and chemical analyses of experimental pasteurized creams showed that pasteurized creams
treated with combinations of the EEO and lycopene in their higher concentrations had the best
microbial and chemical properties and the most stability than control during storage (p < 0.05).
Results of sensorial evaluation demonstrated that all treatments had favorable overall
acceptability, even though, the best sensorial properties were observed in creams with
combinations of EEO and lycopene in their lower concentrations. Therefore, based on the
results of the present study, application of EEO and lycopene as natural preservatives is
especially recommend in high fat dairy products such as butter and cream. |