Application of perilla frutescens extract in preservation of chilled beef and preservation method of chilled beef

The invention belongs to the technical field of food preservation, and particularly relates to application of a perilla frutescens extract in preservation of chilled beef and a preservation method of the chilled beef. Flavone and polyphenol active ingredients in the perilla frutescens extract not only have relatively high bacteriostatic activity, but also have relatively good antioxidant activity, so that the fat oxidation speed can be delayed, food fading, browning and the like caused by oxidation are prevented, and the color of beef is further improved; moreover, the purple perilla extract is safe and non-toxic, has no side effect, and is simple in steps, low in technical requirements and convenient to popularize and apply when being used as a preservative for treating the chilled beef; an embodiment verifies that the natural preservative provided by the invention can effectively prolong the shelf life of the beef, and the storage period of the chilled beef is prolonged to more than 35 days. 本发明属于食物保鲜技术领域，具