Effects of natural antioxidants on bacterial count and peroxide value of pet cans after air leakage
Canned pet food exposed to the air for a long time after being opened,and the deterioration of food could cause adverse effects on pet health during this process.In order to compare the hygrothermal sterilization resistance of natural antioxidants commonly found in five pet foods,vitamin C(VC),vitamin E(VE),tea polyphenols(TP),fat-soluble rosemary extract(REO)and water-soluble rosemary extract(REW),and the changes of bacterial count,pH and peroxide value of canned dog food with high(500 mg/kg)and low(100 mg/kg)doses of antioxidants in the ofice and kennel environment within 24 hours of exposure.The results showed that VC,VE and REW had good resistance to damp and heat sterilization.Within 24 hours of exposure in the air,the total bacterial count and peroxide value of canned dog food increased,and the pH did not change.VC,VE and REO had good bacteriostatic ability,and VE had better anti-oxidation ability than other natural antioxidants(P＜0.05).Therefore,combining various factors,adding a certain amount of vitamin E is a better choice for prolonging the deterioration time of pet cans after opening.
万方数据
维普
