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This study investigated the effects of Perilla frutescens var. acuta water extract (WEP) on the shelf life and physicochemical qualities of cooked beef patties. The WEP contained phenolic compounds (80.65 mg gallic acid equivalents/g) and had half-maximal effective concentrations of 0.437 and 4.509 mg/mL for scavenging of DPPH and ABTS(+) radicals, respectively. Treatment with 0.6% WEP inhibited the growth of Escherichia coli O157:H7 (p&lt;0.05). Based on the result of the antioxidative potential and antimicrobial potential of WEP, beef patties were prepared with three treatment groups: (1) beef patties without added antioxidant (control); (2) beef patties with 0.02% ʟ-ascorbic acid (BAA); and (3) beef patties with 0.6% WEP (BWEP). The pH and cooking loss of BWEP were lower and higher than those in the control, respectively (p&lt;0.05). When cooked beef patties were stored for 21 d at 4℃, the total number of aerobic bacteria in BWEP was lower than those in the control on all days except day 14 (p&lt;0.05). The TBARS values in BWEP were lower than those of controls on days 7, 14, and 21 (p&lt;0.05). Compared to control and BAA, BWEP had lower L* and b* values and higher a* values throughout the storage period (p&lt;0.05). Except on day 0, acceptability was higher in BWEP than in control and BAA (p&lt;0.05). According to results, WEP can be used as a natural ingredient that improves the shelf life and sensorial qualities of meat products.

Influence of Perilla frutescens var. acuta Water Extract on the Shelf Life and Physicochemical Qualities of Cooked Beef Patties