Tall grease pastry fresh-keeping packaging technology research

It is necessary to study and improve the packaging technology of tall grease pastry to protect from oxidative rancidity go bad during storage. Respectively use common package, nitrogen-filled package, deoxidizer package and nitrogen-filled deoxidizer package to make an accelerated fresh-keeping test on walnut shortbread. The determination of this test is to study different packages' influences on crisp peach cookie's quality change. The result shows that nitrogen-filled deoxidizer package is the most suitable fresh-keeping packaging for tall grease pastry that can reduce the increase extent of acid and peroxide value during storage. It can also slow down the occurrence of oxidative rancidity, inhibit bacteria proliferate and effectively extend shelf life.