Effect of Chitosan-Spearmint Essential Oil Composite Film on Preservation Effect of Sauced Beef
The meat product industry has been developing well in recent years,but the problems such as short storage time and easy deterioration affect the development of the industry.In order to prolong the storage time of sauced beef,the development of efficient and economical compound preservatives is currently a hot research direction.In this paper,different concentrations of chitosan and spearmint essential oils are compounded to prepare edible film to wrap sauced beef.The color,pH value,total volatile basic nitrogen(TVB-N)value,total bacterial count,coliforms and sensory quality of sauced beef during storage are measured.The difference of preservation effect of different concentrations of spearmint essential oils on sauced beef is compared.The results show that the combination of chitosan and spearmint essential oil is helpful to the storage and preservation of sauced beef,which can better retain the color,inhibit its oxidative corruption and the growth of bacterial flora on the surface,and prolong the preservation time of sauced beef.Among them,4%concentration of spearmint essential oil has the best preservation effect.Therefore,chitosan-spearmint essential oil composite film can be used as an innovative preservation material in the packaging of sauced beef,which has provided a reference basis for the development of new natural preservatives.